Friends, we have to support these kinds of efforts. This channel is so informative and beautifully illustrated. I hope you all are learning as much as I do. Thanks!
OUSTANDING!! I am IMPRESSED. I've viewed LOTS OF TH-cam tutorials over the years (literally hundreds),... and you are LIGHT YEARS AHEAD OF ALL OF THE OTHERS! (in my humble opinion) You speak "ENGLISH" and you are CLEARLY VERY KNOWLEDGEABLE AND VERY THOROUGH! Thank you sir! YOU ARE GIFT TO IT PROFESSIONALS!
Thank you for the kind words, we are working hard on doing a respectable job of presentation and at the same time engaging our viewers. We do make mistakes and our great viewers call us out, and we want that feedback. We hope you will come back for more!
This is by far one of the most underrated IT videos of all time. Incredible. If there was a tip button, I literally would've sent money. Thank you so much for sharing!!!
AMAZING video!! Started in IT in '97 and in 30mins you succinctly and eloquently detailed what took me well over a decade to learn. Truly excellent work!!
As an Ops technician at a data center in Maryland I've got to say this was hands down the best video I've ever seen on the subject. Everything you mentioned and showed are exactly what I see and work with everyday.
I work for a major logistics company for Google. I see fiber cables, optical modules, network switches, etc. all day long. It was only after watching this video did I even begin to understand what this material was, how it is implemented, and what I had to understand if I wanted to work in the nearby Google data center. Thank you!
I'm going to say what most of the comments are saying. I've learned more in this video than I have researching google and blog posts for years. Fiber is one of those dark arts because of all the different types. But this video put it in a super easy format and explained everything. All in 30 minutes. Thank you.
Nonya, thanks for the comment. This is a subject that is difficult to find good information unless you work in this industry. We are working on bringing this information and understanding to more folks.
Overall this is a really informative video. Great for getting someone up to speed with fiber. One thing though, there is a difference between path loss and return loss. Path loss (including intrinsic losses) is the attenuation of the signal down the path between the transmitter and receiver. Return loss is the value of how much light is reflected back to the source. They are very different things. Great work. I look forward to watching more of your videos.
Thanks for publishing this video. I hadn’t realised how far networking has advanced since I did a final year undergrad dissertation on ATM switches about 25 years ago! I feel all caught up now 😊 👍
rk: there is much more to learn in working for data centers, storage fabric, TOR systems, VLANs, server management, routing within and without the data center, Software Define Networks, virtualization on Windows, Linux and VMware, SANs, cluster systems, WAN interfaces, and so much more! Thanks for watching!
I watched today other video of yours, when i was searching for fiber explanations i found your video, and immediately i thought: ohh this is going to be very detailed and explained. Aaaaand it was ;) Thank you so much for such great videos ! Thank god there are still people like you and make proper explanation rather than : 'fc , connectors in 1 minutes.. ' ;)
Nice video Sir. One of my tutors gave me a downloaded version of this video 6 days ago. I just had to find you! This page is quite an asset. Kudos Sir.
Amazing video! This has more information in single 30 videos, that dozen other videos and articles I saw before. Combined. Good job. This is the goto video on fiber optics. Very comprehensive.
Finally a video that tells me what I needed to know! What fiber to pre-wire my new house with?... Looks like OM3 should work fine! I won't have anything even close to 100M.
actually you would be well advised to use OS2 single mode cabling. That will allow you to move the signal from your FTTH connection to anywhere in the house and the extra cost of transceivers is trivial. Also OS2 is now cheaper than OM cabling of any grade. That said, cat 6a is fine for housing. Just put in empty tubing so you can pull the fiber cable if you should ever need to do so.
Small correction: a plenum is an air _circulation_ space. If air doesn't normally flow through it, it's not a plenum. The drop ceiling in most commercial structures is a plenum as it's the return path for HVAC systems. In residential settings, most setups have ducted returns. (In my parents house, the space under the stairs is a plenum as the return duct is open to the back of the stairs, vs. ducts run all the way to the registers. In my house, there are two large ducts leading to filtered registers, one in a wall, the other in a ceiling.) Note: I had this very conversation with engineers, architects, and city inspectors w.r.t. a computer room ("data center"). We had to have revised plans _explicitly_ stating the area above the ceiling was NOT a plenum. Yes, HVAC ducts pass through the space, but there is no air moving in the space; the room is otherwise vapor sealed. (this was but one of the many nits picked with the city.)
Fantastic video! This video brings everything about fiber and LAN technologies together in an interesting and easy to understand method. I can't tell you how much I enjoyed the video. However, you misspoke at 6:06; 850nm is not a lower frequency, it is a lower wavelength but higher frequency than say 1300nm.
Work work with number 5 ESS electronic switching systems that incorporated fiber optics for the very first time in communication that's the Baseline for the internet that's how it all started AT&T Bell Labs is responsible for all of that great company great career God Bless America
Central Offices are making a come back as they reinvent how to provide edge services to the mega-internet services. The CO was the heart of the telecommunication world for years.
Very good video and I will watch it again for all that information to sink in, found your fire regulations interesting as we don't have the same here in NZ apart from the marine industry.
Regarding 40 Gigabit in the chart at 5:03, there is one additional option, beyond the singlemode and MTP/MPO options: 40GBASE-SR-BD (or 40GBASE-SR-BiDi, short for Bi-Directional) uses the same kind of two-strand multimode cable used with 10GBASE-SR, but gives you 40 Gigabit Ethernet. With 40GBASE-SR4, you have an MTP/MPO-12 connector carrying 8 10Gbps wavelengths (four in each direction). With the 40GBASE-SR-BD, the transceiver combines the 10Gbps "lanes" into two 20Gbps lanes, sending each out over the two fiber strands. That's where the bi-directional part comes in: In each strand, you have 20Gbps wavelengths traveling in each direction. Although the length limitations for 40GBASE-SR-BD are lower than those of 10GBASE-SR, this is a great way to upgrade from 10 Gigabit to 40 Gigabit without needing to replace fiber. That's probably why, if you order a 40GBASE-SR-BD transceiver today, it'll take several months to arrive! See more details at community.fs.com/blog/bi-directional-qsfp-40gbe-over-lc-duplex-multimode-fiber.html
This was state of the art 4 years ago, things have only gotten faster and better since then.. 8 color all the way up to 64 color stacking and 30 mile hops on fiber distribution are an every day thing.. Not sure what the distance is on the main trunks and backbones but it has to be huge because there are trans oceanic fiber cables now.. In 5 years I will upgrade my home network to fiber to replace my 10 gig cat 7 cable that was installed 2 years ago and in 5 years I would imagine that my IP will be offering 32 or 64 gig service to the home as 8k TV's start to be in the main stream of home entertainment and fiber network cards are in home computers..
Brilliant lection! Concise and well to congest. If you just had a little bit more repetition, e.g. wrap ups at the end of the sections, it would have been better to memorize all the terms, concepts and abbreviations.Wish you all the best!
This video is great! Just for your information: The german video title and description are from a different video. Even the URLs to the Documentation are wrong. You might want to update this, as it can be very confusing for people with a german youtube account. I had to switch to english language on youtube to find the correct documentation. Thanks to you!
Danke, ich werde das beheben und ich hoffe, dass alle meine internationalen Leute uns melden, wenn wir Fehler bei der Übersetzung oder den Untertiteln machen. Der Prozess ist sehr manuell und Fehler können passieren.
It's crazy what we're capable of now, can't wait to see what we can do in the next 10 year when better engineering ideas are brought to the networking world. Can't wait for 10 Gig home internet lmao!
We use single mode fiber for everything. Maybe primarily because we are a FTTH provider but also because the cost of single mode tranceivers are very cheap these days and we do not want to work with more than one type of cabling. For 100G tranceivers there is a considerable cost saving for using multimode, but otherwise it is just not worth the hassle. Also OS2 fiber is actually cheaper than multimode, probably because of the amount used. While there surely is a lot of fiber used in the datacenter, the long distances in long hauls fiber networks and the expansive FTTH networks also quite a lot of fiber.
While you note that every speed bump in speed requires new different multimode fibre, where as single mode cable you put in 30 years ago is still good to go for all speeds. What you fail to note is that you should never using multimode for any sort of structured cabling because the extra cost of the single mode optics will be immediately recovered the moment you go to a faster speed and don't need to replace the fibre.
FYI OM4+ is not a recognised industry standard. OM1,2,3,4,&5 are recognised. OM4+ is a vendor proprietary option. Usually where a vendor can't match OM5, although I suggest you always do your own due diligence on this point.
This is a high-grade classroom material video. This is better than people at university will teach you.
Thank you for watching!
Friends, we have to support these kinds of efforts. This channel is so informative and beautifully illustrated. I hope you all are learning as much as I do. Thanks!
Thank you so much 😀
Been working in a Data center for 10 years. I feel I've learned way more in this video than I have my whole time onsite. :/
Thanks for the comments, thanks for watching.
I was thinking the same exact same thing I wasn’t a dc tech but i was the sme for my team that worked with DC Team
OUSTANDING!! I am IMPRESSED. I've viewed LOTS OF TH-cam tutorials over the years (literally hundreds),... and you are LIGHT YEARS AHEAD OF ALL OF THE OTHERS! (in my humble opinion) You speak "ENGLISH" and you are CLEARLY VERY KNOWLEDGEABLE AND VERY THOROUGH! Thank you sir! YOU ARE GIFT TO IT PROFESSIONALS!
Thank you for the kind words, we are working hard on doing a respectable job of presentation and at the same time engaging our viewers. We do make mistakes and our great viewers call us out, and we want that feedback. We hope you will come back for more!
This is by far one of the most underrated IT videos of all time. Incredible. If there was a tip button, I literally would've sent money. Thank you so much for sharing!!!
Thank you for the kind words, we hope you will come back!
It’s your lucky day because there is a tip button now!
AMAZING video!! Started in IT in '97 and in 30mins you succinctly and eloquently detailed what took me well over a decade to learn. Truly excellent work!!
Glad you enjoyed it!
As an Ops technician at a data center in Maryland I've got to say this was hands down the best video I've ever seen on the subject. Everything you mentioned and showed are exactly what I see and work with everyday.
Thank you!!! And thanks for watching and taking the time to comment.
Excellent video! I will be showing this to my entire team.
Thank you
This is the best video I've seen on fiber optics.
Thank you for watching!
I work for a major logistics company for Google. I see fiber cables, optical modules, network switches, etc. all day long. It was only after watching this video did I even begin to understand what this material was, how it is implemented, and what I had to understand if I wanted to work in the nearby Google data center. Thank you!
Thanks for the comment and for watching!
I'm going to say what most of the comments are saying. I've learned more in this video than I have researching google and blog posts for years. Fiber is one of those dark arts because of all the different types. But this video put it in a super easy format and explained everything. All in 30 minutes. Thank you.
Nonya, thanks for the comment. This is a subject that is difficult to find good information unless you work in this industry. We are working on bringing this information and understanding to more folks.
Mr V, am an IT student and this video was very resourceful. Well i have been watching these videos for IT knowledge
Welcome, this channel is for you!!
Overall this is a really informative video. Great for getting someone up to speed with fiber. One thing though, there is a difference between path loss and return loss. Path loss (including intrinsic losses) is the attenuation of the signal down the path between the transmitter and receiver. Return loss is the value of how much light is reflected back to the source. They are very different things. Great work. I look forward to watching more of your videos.
Thanks for the input and comments, it is always appreciated!
This is the best overview of fibre standards that I have found. It's just the information I needed for choosing equipment for my new house. Thanks.
Thanks for watching!
That is the very clearest and most informative introduction to fiber optics I have seen. Thank you very much for making it.
Glad it was helpful!
This video has helped me understand different types of optics and what they are used for. Thank you Lowell.
Glad to help
For all IT professionals out here reading the comments, this channel is a hidden gem 💎
Thank you for the kind words!
this is really amazing! so comprehensive, made my understanding of the whole ecosystem so easy! Super effort by producer, really grateful!!
Thanks for watching!
Thanks for publishing this video. I hadn’t realised how far networking has advanced since I did a final year undergrad dissertation on ATM switches about 25 years ago! I feel all caught up now 😊 👍
Thanks for sharing!
Incredible overview, clear and to the point. I've pointed my coworkers to it. We had no idea that 400Gb/s is now possible.
Thanks for watching!
I’m astonished as to the amount of information I got from this video. Very informative and easy to follow. I admire your work
So glad you enjoyed and found it beneficial. Thanks for the comments and for watching.
100%, learned as much as a 3 day course to get fiber optic installer certified
I learned more here than I did in school. Thank you.
Thanks for watching!
This video is the best education on fiber to have been publicly published. Great video. Great production.
Glad it was helpful!
Awesome video as I am 14 and I want to be a network engineer when I grow up and there aren't many resources for me so this is amazing.
Welcome to TechSavvyProductions!!! Come back as often as you like!
Great video, thank you! 16:40 - Connector is verbally called "MT-JR" , despite being listed onscreen 2x as "MT-RJ". Just something I spotted :)
Thanks for the info!
Hugely underrated channel, you deserve way more subscribers! Like others have said this channel has top-notch material.
Much appreciated!
Fantastic video, will have to play in slo-mo just to digest the knowledge shared. Many Many thanks
Glad you enjoyed it!
The best video on fiber cables. this one video on finer cables/transceivers is more than enough to work in a data centre and crack interviews.
rk: there is much more to learn in working for data centers, storage fabric, TOR systems, VLANs, server management, routing within and without the data center, Software Define Networks, virtualization on Windows, Linux and VMware, SANs, cluster systems, WAN interfaces, and so much more! Thanks for watching!
I watched today other video of yours, when i was searching for fiber explanations i found your video, and immediately i thought: ohh this is going to be very detailed and explained. Aaaaand it was ;) Thank you so much for such great videos ! Thank god there are still people like you and make proper explanation rather than : 'fc , connectors in 1 minutes.. ' ;)
Glad it was helpful!
Nice video Sir. One of my tutors gave me a downloaded version of this video 6 days ago. I just had to find you! This page is quite an asset. Kudos Sir.
Welcome aboard!
Amazing video! This has more information in single 30 videos, that dozen other videos and articles I saw before. Combined. Good job. This is the goto video on fiber optics. Very comprehensive.
Glad you enjoyed it!
Finally a video that tells me what I needed to know! What fiber to pre-wire my new house with?... Looks like OM3 should work fine! I won't have anything even close to 100M.
Thanks for watching!
actually you would be well advised to use OS2 single mode cabling. That will allow you to move the signal from your FTTH connection to anywhere in the house and the extra cost of transceivers is trivial. Also OS2 is now cheaper than OM cabling of any grade.
That said, cat 6a is fine for housing. Just put in empty tubing so you can pull the fiber cable if you should ever need to do so.
Thank you for this detailed education. I have learned not to watch these videos on my tiny cell phone because I want to catch every piece of wording.
The videos are produced with a computer screen in mind, thanks for watching!
This video explains well about fiber optic technology. Amazing thanks
Thanks for watching!
Very comprehensive video! Thanks
Glad you enjoyed it!
Wish you all the health and happiness to continue your work and make more videos like this!
Thanks for the kind comments and for watching!
this is the primer I needed! Thank you so much
Glad I could help!
Small correction: a plenum is an air _circulation_ space. If air doesn't normally flow through it, it's not a plenum. The drop ceiling in most commercial structures is a plenum as it's the return path for HVAC systems. In residential settings, most setups have ducted returns. (In my parents house, the space under the stairs is a plenum as the return duct is open to the back of the stairs, vs. ducts run all the way to the registers. In my house, there are two large ducts leading to filtered registers, one in a wall, the other in a ceiling.)
Note: I had this very conversation with engineers, architects, and city inspectors w.r.t. a computer room ("data center"). We had to have revised plans _explicitly_ stating the area above the ceiling was NOT a plenum. Yes, HVAC ducts pass through the space, but there is no air moving in the space; the room is otherwise vapor sealed. (this was but one of the many nits picked with the city.)
Thanks for the comment and correction, I believe you are correct as I reflect.
Eccellent! Too many times I've had to argue with folks what a plenum is!
1 person is ungrateful for the information supplied ..very informative, thank you
Glad it was helpful!
Tons of information in half an hour . So great . Thank you
Thanks for watching!
Fantastic video! This video brings everything about fiber and LAN technologies together in an interesting and easy to understand method. I can't tell you how much I enjoyed the video. However, you misspoke at 6:06; 850nm is not a lower frequency, it is a lower wavelength but higher frequency than say 1300nm.
You are correct!!! Keep us honest! Thanks for the comment and for watching!
Excellent content & presentation.
Glad you liked it!
SUPERB. Thank you very much sharing.
Thanks for watching!
Work work with number 5 ESS electronic switching systems that incorporated fiber optics for the very first time in communication that's the Baseline for the internet that's how it all started AT&T Bell Labs is responsible for all of that great company great career God Bless America
Central Offices are making a come back as they reinvent how to provide edge services to the mega-internet services. The CO was the heart of the telecommunication world for years.
Outstanding video.
Thank you
Our pleasure!
So informative and clear with great use of graphics
Glad you liked it
Outstanding breakdown.. Amazing..
Thanks for watching!
the best video on Fiber optics!
Glad you enjoyed it
This is a fantastic video, balancing basic theory and standard implementations.
Glad you enjoyed it
Very good video and I will watch it again for all that information to sink in, found your fire regulations interesting as we don't have the same here in NZ apart from the marine industry.
Glad it was helpful!
This is amazing and such a good video, as a network engineer, I applaud you lol
Thanks for watching!
This is where the miney is at. Extremely interesting content thank you. You got a subscriber 😋
Awesome, thank you!
Thank you so much for sharing the knowledge. It's much appreciated for us beginners
Glad it was helpful!
This is great video! thanks for the Knowledge..
Glad it was helpful!
Regarding 40 Gigabit in the chart at 5:03, there is one additional option, beyond the singlemode and MTP/MPO options: 40GBASE-SR-BD (or 40GBASE-SR-BiDi, short for Bi-Directional) uses the same kind of two-strand multimode cable used with 10GBASE-SR, but gives you 40 Gigabit Ethernet.
With 40GBASE-SR4, you have an MTP/MPO-12 connector carrying 8 10Gbps wavelengths (four in each direction). With the 40GBASE-SR-BD, the transceiver combines the 10Gbps "lanes" into two 20Gbps lanes, sending each out over the two fiber strands. That's where the bi-directional part comes in: In each strand, you have 20Gbps wavelengths traveling in each direction.
Although the length limitations for 40GBASE-SR-BD are lower than those of 10GBASE-SR, this is a great way to upgrade from 10 Gigabit to 40 Gigabit without needing to replace fiber. That's probably why, if you order a 40GBASE-SR-BD transceiver today, it'll take several months to arrive!
See more details at community.fs.com/blog/bi-directional-qsfp-40gbe-over-lc-duplex-multimode-fiber.html
Thank you for your comments, I appreciate anyone that can add new information to this topic!
Very clear video for tutorials,keep up to create video for learners like me,i interested in communication update and upgrade,thanks sir.,...
Thanks for the comment and for watching!
Great video, thanks so much, I really learned a lot about Fiber Optics...
Glad it was helpful!
This is priceless, a very comprehensive overview.
Thank you for the comment!
Thanks so much for this valuable course, I learned a lot of things with it, much appreciated ;)
You're very welcome!
An invaluable video, thankyou for putting the time and effort in, it's much appreciated.
Glad you enjoyed it!
Amazing video, thanks.
Thanks for watching!
Excellent Knowledge~Fiber Cable from your Video~~~~
Thanks for watching!
came in here just to get a crash course in fiber optics and got a phd. great presentation
Thanks for watching!!!!
Thanks for your professional explanation.
Glad it was helpful!
Super good prez at super pace. Thanks on the effort and the gift.
Glad you like it!
Great run through. Really helpful
Glad it helped!
Thank you. You are our Professor from afar! Love your content, Professor V!
Thank you for your comments and for watching!!
Excellent video and super informative. Thank you!
Glad you enjoyed it!
the very complete video. Very good job!! From Italy.
Benvenuto nel canale, grazie per il commento. I nostri cuori ai nostri amici dall'Italia sono aperti.
Thank a lot for this!
Thanks for watching!
wow.. best video on fiber EVER!
Thanks for watching!
This was state of the art 4 years ago, things have only gotten faster and better since then.. 8 color all the way up to 64 color stacking and 30 mile hops on fiber distribution are an every day thing.. Not sure what the distance is on the main trunks and backbones but it has to be huge because there are trans oceanic fiber cables now.. In 5 years I will upgrade my home network to fiber to replace my 10 gig cat 7 cable that was installed 2 years ago and in 5 years I would imagine that my IP will be offering 32 or 64 gig service to the home as 8k TV's start to be in the main stream of home entertainment and fiber network cards are in home computers..
Very true I need to update, technology is moving on! Thanks for the comment.
Thanks a lot for the great explanation , please keep posting new videos ,
Keep watching
You nailed that !
Thanks for watching!
Great work Sir! ..... thanks from the heart.
Thanks for watching!!
Brilliant lection! Concise and well to congest. If you just had a little bit more repetition, e.g. wrap ups at the end of the sections, it would have been better to memorize all the terms, concepts and abbreviations.Wish you all the best!
Thank you for the suggestion!!
This video is great!
Just for your information: The german video title and description are from a different video. Even the URLs to the Documentation are wrong.
You might want to update this, as it can be very confusing for people with a german youtube account. I had to switch to english language on youtube to find the correct documentation.
Thanks to you!
Danke, ich werde das beheben und ich hoffe, dass alle meine internationalen Leute uns melden, wenn wir Fehler bei der Übersetzung oder den Untertiteln machen. Der Prozess ist sehr manuell und Fehler können passieren.
Please check again and see if items have been corrected, thank you for the feedback! We want the information corrected.
@@TechsavvyProductions Its been corrected. Title and description match the video. I'll watch your entire series on OSI next. Thanks again!
So so good, thanks
Glad you like it!
gr8 PDF thanks........you have putted all infromation in 1 video 1 pdf that all i required....thanks
Most welcome 😊
great content
Thanks for watching!
Great video!! Much appreciated😀
My pleasure!
Great video! Great content!
Glad you enjoyed it!
just started working on racks
nice tutorial
Glad you liked it!
It's crazy what we're capable of now, can't wait to see what we can do in the next 10 year when better engineering ideas are brought to the networking world. Can't wait for 10 Gig home internet lmao!
Thanks for watching
Great Video Sir. Thanks
Thanks for watching!
We use single mode fiber for everything. Maybe primarily because we are a FTTH provider but also because the cost of single mode tranceivers are very cheap these days and we do not want to work with more than one type of cabling. For 100G tranceivers there is a considerable cost saving for using multimode, but otherwise it is just not worth the hassle. Also OS2 fiber is actually cheaper than multimode, probably because of the amount used. While there surely is a lot of fiber used in the datacenter, the long distances in long hauls fiber networks and the expansive FTTH networks also quite a lot of fiber.
Thanks for the comments they are always appreciated!
This is impressive work!!
Thanks for watching!
That was very informative, thanks
Glad it was helpful!
While you note that every speed bump in speed requires new different multimode fibre, where as single mode cable you put in 30 years ago is still good to go for all speeds. What you fail to note is that you should never using multimode for any sort of structured cabling because the extra cost of the single mode optics will be immediately recovered the moment you go to a faster speed and don't need to replace the fibre.
Jonathan, love the comments and concerns. Thanks for sharing this perspective! Thanks for watching.
Great info. I'm glad I was recommend ti watch this
Glad you enjoyed it!
Thanks, great production, well prepared and delivered.
Glad you enjoyed it!
Thank you very much sir. I am very happy that I revisited your old video on fiber optics and found this one.
Thanks for checking out the channel!
Sir I really appreciate your help.
It's my pleasure
Great video Sir
Thanks
thank you
You're welcome
Great video!!! Thanks a lot.
Thanks for watching!
good content...very informative
thanks for watching
FYI OM4+ is not a recognised industry standard. OM1,2,3,4,&5 are recognised. OM4+ is a vendor proprietary option. Usually where a vendor can't match OM5, although I suggest you always do your own due diligence on this point.
Thank you for the comment and for sharing!
I love this video very well put together
Thanks for watching!