Optical Active and Passive Component

HI Readers,

Let's Start.....

Earlier I Mostly Write about Fiber, Now I am Writing about Optical Active an Passive Component.

• Optical Transmitter :-  

Below Image shows and Optical SFP Module, Which is an Optical Transceiver.

Optical Transmitter is to convert Electrical Input Signal into a corresponding optical Signal.

Optical Transmitter Contains are Optical Source and Modulators.

Optical Source as LED's and Semiconductor LASER.

• LED - Light Emitting Diode:-

LED is a device which convert Voltage (Electrical Signal) into Optical Signal or we can Say emits light wave Corresponding Voltage Input.

Modulation Bandwidth of an LED is in 50 -140 Hz.

LED's are Inexpensive Comparative to LASER.

• Semiconductor LASER :- 

Firstly Full Form of LASER - Light Amplification by Stimulated Emission Radiation.

Semiconductor LASER's are also Convert Electrical Input Signal into Optical Light-wave Signal.

Modulation Bandwidth of Semiconductor LASER at High Frequencies (up to 25 GHz).

Thankyou