What are the main elements of an optical receiver?

The main elements of an optical receiver encompass the critical components that facilitate the reception and processing of optical signals.

In this context, the elements identified in the correct answer include:

1. Demodulator: This component is essential for converting the received signal into a usable electrical format. It plays a vital role in retrieving the information encoded in the optical signal.

2. Electrical Interface: This part of the optical receiver allows for the connection and integration of the receiver with other electrical systems, ensuring that the processed signals can be sent to external devices or networks.

3. Optical Detector: The optical detector is the component that receives the incoming light signals and converts them into electrical signals. This is a fundamental function in transforming optical energy into an electronic form that can be processed further.

4. Optical Interface: This element manages the connection between the optical receiver and the optical fiber or medium through which the signal is transmitted. It ensures efficient coupling of light into the detector.

These components work together to ensure that an optical receiver effectively converts light signals into a format usable for communication or further processing, making this answer the most accurate in defining the main elements of an optical receiver.