Optical frequency comb stabilized to a fiber delay line

被引：9

作者：

Tian, Haochen ^{[1
]}

Meng, Fei ^{[2
,3
]}

Wang, Kai ^{[1
]}

Lin, Baike ^{[2
]}

Cao, Shiying ^{[2
]}

Fang, Zhanjun ^{[2
]}

Song, Youjian ^{[1
]}

Hu, Minglie ^{[1
]}

机构：

[1] Tianjin Univ, Sch Precis Instruments & Optoelect Engn, Key Lab Optoelect Informat Technol, Ultrafast Laser Lab,Minist Educ, Tianjin 300072, Peoples R China

[2] Natl Inst Metrol, Div Time & Frequency Metrol, Beijing 100029, Peoples R China

[3] Peking Univ, Sch Elect Engn & Comp Sci, Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2021年 / 119卷 / 12期

基金：

中国国家自然科学基金;

关键词：

LASER; METROLOGY; DIGITS;

D O I：

10.1063/5.0062785

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have developed a simple and practical optical frequency comb (OFC) stabilization method for comb linewidth reduction in this Letter. Two comb modes of an Er-fiber optical frequency comb (OFC) have been phase-locked to a kilometer-long fiber delay line, while narrow linewidth lasers are not required as optical references. The fractional frequency stability of the 1542-nm comb mode in the Er-fiber OFC reaches 9.13 x 10(-13) at 12.8 ms average time, and its short-term linewidth is 580 Hz, which is compressed by a factor of & SIM;170 compared to the free-running condition. The whole stabilization scheme gets rid of nonlinear progress, which can be an alternative approach for OFC stabilization, especially in ultra-high repetition-rate combs, e.g., electro-optic combs, quantum cascade laser combs, and micro-combs with low pulse energy.

引用

页数：5

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