Affiliation:
1. University of Chinese Academy of Sciences
2. University of Science and Technology of China
3. Shanghai University
4. Shanghai Institute of Optics and Fine Mechanics
Abstract
We propose a novel scheme that uses only a single passive phase compensation device to achieve stable optical and radio frequency joint transfer. The phase noises of optical and radio frequency can be simultaneously compensated by passively embedding their phase information on the two optical carrier sidebands generated by an electro-optical modulator without using the phase discrimination and active servo controller. As a result, this scheme has many advantages, such as high spectral purity, short settling time and infinite compensation accuracy. We experimentally demonstrate the joint transfer of optical and 1 GHz RF over 120 km fiber spools. The optical frequency stability achieves 6.9 × 10−17 at 1 s and 7.03 × 10−19 at 10000 s, while the 1 GHz RF is 6.47 × 10−13 at 1 s and 3.96 × 10−16 at 10000 s.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Natural Science Foundation of Shanghai
Youth Innovation Promotion Association of the Chinese Academy of Sciences
Subject
Atomic and Molecular Physics, and Optics