Over the decades like optical fiber, fiber optic light source technology has improved dramatically. These advances have greatly increased reduced costs and data transmission rates. To support every standardized network with a variety of connector choice fiber optic transmitters are available.
Types of Fiber Optical Light source that is available
While projecting a near-microscopic beam of light into optical fiber light sources for optical fiber communication must be able to turn on and off millions to billions of times per second. On top of the performance, in a small package, they must be reasonably priced, highly reliable, easy to use, and available.
For fiber optic communication basically, there are two types of semiconductor light sources available - The LED sources and laser sources. You can buy the optical power meter online.
What is a LED light source?
A basic LED light source is a semiconductor diode with a p region and an n region. Current flows through the LED when the LED is forward biased. When current flows through the LED, the junction where the p and n regions meet emits random photons. This process is known as spontaneous emission.
What is a Laser light source?
The laser is a semiconductor diode with a p and an n region like the LED. Unlike LED, with reflecting mirrors on each end of the diode the laser has an optical cavity that contains the emitted photons. One of the reflecting mirrors is only partially reflective. Because of this mirror, some of the photons escape the optical cavity.
For high-speed networking popular laser source is the vertical-cavity surface-emitter laser (VCSEL). This semiconductor diode is an ideal choice for the gigabit networking options and combines high bandwidth at a low cost. The optical alignment machine is of reasonable price.
The laser source works flawlessly in a single-mode fiber environment. Its highly collimated beam of light is easily aimed right down the center of the narrow single-mode core and propagates in essentially a single-mode transmission, with all the attendant advantages.
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