Multi-Loop opto-electronic microwave oscillator with a wide tuni

Details Multi-Loop opto-electronic microwave oscillator with a wide tuni Multi-Loop opto-electronic microwave oscillator with a wide tuni

1996-08-01

1998-07-07

Font, Frank G.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359184, 359181, 359187, G02F 103

Patent

active

057777780

ABSTRACT:
A versatile photonic radio frequency (RF) oscillator employs multiple feedback loops of different delay times, including at least one optical feedback loop, to generate RF signals with ultra low phase noise, narrow spectral linewidth, and a continuous wide tuning range of high resolution. Specifically, an electro-optical modulator and a long optical fiber loop are implemented in one dual-loop system. In addition, a light beam from a light source can be directly modulated by using feedback signals from multi feedback loops to alter the electrical control signal to the light source. Furthermore, the disclosed system supports both electrical and optical RF outputs. External optical injection and electrical injection can be implemented.

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