Photonic sampler for 1550-nm signals

Area of Science:

• Optoelectronics
• Photonics
• Optical Communications

Background:

• High-speed optical signal processing is crucial for modern communication systems.
• Existing sampling methods may face limitations in speed, transparency, or configurability.

Purpose of the Study:

• To present a novel photonic sampler device for optical communication signals.
• To demonstrate a device capable of extracting configurable sample lengths from 1550-nm signals.

Main Methods:

• The device utilizes two Cadmium Telluride with Indium (CdTe:In) optical switches.
• Control is achieved via a pulsed light beam, enabling precise sampling.
• The sampler exhibits 10-nanosecond rise and fall times.

Main Results:

• The photonic sampler successfully extracts optical signal samples of configurable duration.
• A sampling window duration of one microsecond was achieved.
• The device demonstrated full transparency to optical communication signals in the third transmission window (1550 nm).

Conclusions:

• The developed CdTe:In based photonic sampler offers a promising solution for high-speed optical signal sampling.
• Its configurable nature and transparency make it suitable for advanced optical communication applications.
• The device's rapid switching times are advantageous for real-time signal analysis.