Selection and amplification of a single optical frequency comb mode for laser cooling of the strontium atoms in an optical clock

被引：16

作者：

Liu, Hui ^{[1
,2
]}

Yin, Mojuan ^{[1
]}

Kong, Dehuan ^{[1
]}

Xu, Qinfang ^{[1
]}

Zhang, Shougang ^{[1
]}

Chang, Hong ^{[1
]}

机构：

[1] Natl Time Serv Ctr, CAS Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China

[2] Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 15期

基金：

中国国家自然科学基金;

关键词：

FEMTOSECOND LASER; DIRECT LINK; INJECTION; SPECTROSCOPY;

D O I：

10.1063/1.4933259

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this paper, we report on the active filtering and amplification of a single mode from an optical femtosecond laser comb with mode spacing of 250MHz by optical injection of two external-cavity diode lasers operating in cascade to build a narrow linewidth laser for laser cooling of the strontium atoms in an optical lattice clock. Despite the low injection of individual comb mode of approximately 50 nW, a single comb line at 689 nm could be filtered and amplified to reach as high as 10 mW with 37 dB side mode suppression and a linewidth of 240 Hz. This method could be applied over a broad spectral band to build narrow linewidth lasers for various applications. (C) 2015 AIP Publishing LLC.

引用

页数：5

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