摘要

搭建了一套光纤相位噪声抑制系统。通过环外自拍频, 得到噪声本底的秒级频率稳定度为6.8×10-18, 2000 s平均时间后达到2.3×10-19。利用该系统可实现窄线宽激光频率在1.6 km实际光纤链路中的传输, 传输后环外自拍频信号的秒级频率稳定度可达1.2×10-17。基于连接两个实验室的808 m实际光纤链路, 将此系统应用于1.5 μm超稳激光的比对, 通过拍频测量得到激光线宽为(0.54±0.15) Hz, 秒级频率稳定度为1.2×10-15。

Abstract

A fiber phase noise suppression system is built. By out-of-loop self-beat frequency, the noise floor of 6.8×10-18 is obtained in the average time of 1 s, and it falls down to 2.3×10-19 after the average time of 2000 s. The laser frequency with narrow linewidth is transferred in a 1.6 km fiber link when we use the proposed system, and the frequency stability of out-of-loop self-beat frequency signal is 1.2×10-17 in the average time of 1 s. Based on the 808 m fiber link which connects the two laboratories, the laser linewidth of (0.54±0.15) Hz and the frequency stability of 1.2×10-15 in average time of 1 s can be obtained in beat frequency measurement when we apply the proposed system to the comparison of 1.5 μm ultra-stable laser systems.

补充资料

中图分类号：TN248

DOI：10.3788/cjl201744.0404001

所属栏目：测量与计量

基金项目：国家自然科学基金(91336212, 91436104)、国家重点研发计划(2016YFF0200200)

收稿日期：2016-11-22

修改稿日期：2016-12-22

网络出版日期：--

作者单位    点击查看

联系人作者：王朝阳(wzlw1991@163.com)

备注：王朝阳(1991-), 男, 硕士研究生, 主要从事光学频率信号传递方面的研究。

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引用该论文

Wang Zhaoyang,Jin Shangzhong,Li Ye,Lin Yige,Fang Zhanjun. Comparison of 1.5 μm Ultra-Stable Laser Systems Based on Fiber Noise Suppression System[J]. Chinese Journal of Lasers, 2017, 44(4): 0404001

王朝阳,金尚忠,李烨,林弋戈,方占军. 基于光纤噪声抑制系统的1.5 μm超稳激光系统比对[J]. 中国激光, 2017, 44(4): 0404001