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
