Question

A device which converts electrical energy in the form of a current into optical energy is called as ____.

• A. Optical source
• B. Optical coupler
• C. Optical isolator
• D. Circulator

Hint:

Optical Components. Optical Source (e.g., LED, Laser): Electrical \(\rightarrow\) Optical energy. Optical Detector (e.g., Photodiode): Optical \(\rightarrow\) Electrical energy. Coupler: Splits/Combines light. Isolator: Unidirectional light flow.

Answer 1

The Correct Option is A

In optical communication systems, the device responsible for generating the light signal is called the optical source
These devices convert an electrical input signal (current or voltage) into a corresponding optical output signal (light)
Common examples include Light Emitting Diodes (LEDs) and Laser Diodes (LDs)
- Optical couplers split or combine optical signals
- Optical isolators allow light to pass in only one direction
- Circulators direct light between different ports in a specific sequence
Therefore, the device converting electrical energy (current) into optical energy is an optical source