Name two optical sources used in optical communication.

Explanation

**Step-by-Step Solution:**

1. **Understanding Optical Communication**: Optical communication refers to the method of transmitting information over distances using light. This involves converting electrical signals into optical signals that can be transmitted through optical fibers or free space.

2. **Defining Optical Sources**: Optical sources are devices that convert electrical signals into optical signals. They play a crucial role in optical communication by generating the light that carries the information.

3. **Identifying Optical Sources**: There are various optical sources used in optical communication. The two most common types are:
- **Light Emitting Diodes (LEDs)**: These are semiconductor devices that emit light when an electric current passes through them. They are widely used due to their efficiency and cost-effectiveness.
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