An optical fiber is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter typically slightly thicker than that of a human hair. Optical fibers are used most often as a means to transmit light between the two ends of the fiber and find wide usage in fiber-optic communications. Fibers are used instead of metal wires because signals travel along them with lesser amounts of loss; in addition, fibers are also immune to electromagnetic interference. Optical fibers typically include a transparent core surrounded by a transparent cladding material with a lower index of refraction.
Here is a collection of videos that introduce you how the fiber optics technology works:
How Fiber Optics Work
How It’s Made, Fiber Optics.
Understanding Fiber Optic Connector Types
Splice-On Connector Termination: 3mm Cable
Fiber Optic Training Featuring Splicing in PCH-01U
Power Meter Light Source Testing
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Tomi Engdahl says:
Fiberoptics Fundamentals | MIT Understanding Lasers and Fiberoptics
https://www.youtube.com/watch?v=jy9VSNXkbx4
Fiberoptics Fundamentals | MIT Understanding Lasers and Fiberoptics
Topics Covered: Why the interest in fiberoptics; How light propagates in an optical fiber; What determines the loss in a fiber; Single mode and multimode propagation; Single polarization fiber; Fiber amplifier operation; Fiberoptics applications in sensors and communications; Future developments.
Instructor: Shaoul Ezekiel
View the complete course at: http://ocw.mit.edu/res-6-005S08
Tomi Engdahl says:
Fiber optic cables: How they work
https://www.youtube.com/watch?v=0MwMkBET_5I
Bill uses a bucket of propylene glycol to show how a fiber optic cable works and how engineers send signal across oceans.
Tomi Engdahl says:
【CCTV】 How To Splice Fiber Optic cable Manually
https://www.youtube.com/watch?v=E7Q6j0oRGF8
How to splice broken optical fiber cable practically
https://www.youtube.com/watch?v=JBVbyzCSUHk
Tomi Engdahl says:
Fiber Optic Termination- How to terminate fiber optic cable using Giganet Fibre Optic connectors
https://www.youtube.com/watch?v=OosMQHQlY40
How to Repair Fiber Optic Cable
https://www.youtube.com/watch?v=eISDl-zgWhE
The purpose of this video is to provide training on the repair limitations of fiber optic cable issues and damage. This online session will guide you through the main points of how to evaluate, identify, and repair fiber optic damage.
Tomi Engdahl says:
HOMEMADE OPTICAL FIBER FIBRE OPTIC LIGHTING CABLE DIY Do it yourself Fiber Optic Cable Optical Fibre
https://www.youtube.com/watch?v=RiYOw5NsoKY
This is an introduction to how to make your own optical fiber optic cable DIY for indoor lighting applications. I imagine it could be used for short data transfers optical cable but will not say for sure.
DIY Fiber Optics
https://www.youtube.com/watch?v=2l25LKTOTnc
Make your own fiber optics with some fishing line and a hair straightener.
Tomi Engdahl says:
DIY Fiber Optic Cable
https://www.youtube.com/watch?v=N_3EkOq3N7k
In this video, I show you how to make a fiber optic cable at home. This will allow you to bend light. You will need glass rod (I used borosilicate), heat shrink tubing, a heat gun, a torch, safety glasses, proper ventilation, and finally, a laser to test it all out. I was able to make 3 feet in a couple of hours. Enjoy!
Tomi Engdahl says:
A Fiber Optic Light Source
https://www.youtube.com/watch?v=nQlKohPAYXQ
A short video on illuminating and cleaving a fiber optic to use as a test source.
How to attach fiber optic filament to an LED
https://www.youtube.com/watch?v=zTD4xzlwiRU
Use a high-bright IC LED for best results
Tomi Engdahl says:
Fiber Optics, But… Wetter?
https://hackaday.com/2020/09/29/fiber-optics-but-wetter/
Fiber optics are a great way to transfer huge quantity of data at lightning speed. Thanks to the property of total internal reflection, which allows light to flow through a glass fiber like fluid through a pipe, they can be used for communications at long distances and form the backbone of modern communication networks. However, water is also able to pull off the total internal reflection party trick, and [Mike Kohn] decided to see if it could be used as a communication medium, too.
The experimental setup consists of an ATTiny85 that receives signals over its serial port, and outputs the received bits by flashing an LED. This LED is attached to a plastic tube filled with water. On the receiving end, another ATTiny85 reads the voltage level of a photodiode placed in the other end of the tube. When the ADC detects voltage over a certain level, it toggles a pin connected to the serial RX pin.
Hooking the setup to a pair of terminals, [Mike] was able to successfully transmit 9600 baud serial data through a tube full of water with just an LED and a small microcontroller.
https://www.mikekohn.net/micro/water_optic_communication.php
Tomi Engdahl says:
https://community.element14.com/learn/learning-center/essentials/w/documents/27921/fiber-optic-connectivity