Widely-tunable low-phase-noise coherent receiver using an optical Wadley loop.

Area of Science:

• Photonics
• Electrical Engineering
• Signal Processing

Background:

• The Wadley Loop traditionally down-converts RF signals using a tunable oscillator and frequency comb.
• Achieving wide tunability and high stability simultaneously in receivers is a significant challenge.

Purpose of the Study:

• To demonstrate an electro-optic implementation of the Wadley Loop.
• To create a widely-tunable receiver with high phase stability for optical signals.

Main Methods:

• Utilizing a widely-tunable oscillator and a high-stability frequency comb reference.
• Developing an electro-optic architecture for signal down-conversion.

Main Results:

• Successful demonstration of an electro-optic Wadley Loop.
• Achieved a widely-tunable, high phase stability coherent receiver.

Conclusions:

• The electro-optic Wadley Loop offers a novel solution for high-performance optical receivers.
• Potential applications include advanced optical communication systems and high-resolution spectrum analyzers.