Broad bandwidth interference filter-stabilized external cavity diode laser with narrow linewidth below 100 kHz

doi:10.1088/1674-1056/27/1/014204

Abstract Interference filter-stabilized external cavity diode lasers (ECDLs) have properties of simple configurations, high stabilities, and narrow linewidths. However, the interference filter used in common ECDL designs requires an ultra-narrow bandwidth (about 0.3 nm) to achieve mode selection, that is considerably expensive and not yet available for a wide range of wavelengths. In this paper, a robust ECDL using an available broad bandwidth (about 4 nm) interference filter as the wavelength discriminator is constructed and tested. The ECDL demonstrated a narrow Lorentzian fitted linewidth of 95 kHz and a spectral purity of 2.9 MHz. The long-term frequency stability of the ECDL reaches 5.59×10^-12.

Keywords: external cavity diode laser narrow linewidth high frequency stability

Received: 10 July 2017
Revised: 14 August 2017
Accepted manuscript online:

PACS:	42.55.Px	(Semiconductor lasers; laser diodes)
	42.60.-v	(Laser optical systems: design and operation)
	42.60.Da	(Resonators, cavities, amplifiers, arrays, and rings)

Fund: Project supported by the Foundation of Based Technology of China (Grant No. YXBGD20151JL01), the National Natural Science Foundation of China (Grant Nos. 61376049, 61604007, 11674016, 61378058, 61575008, and 61574011), the Natural Science Foundation of Beijing City, China (Grant Nos. 4172009 and 4152003), and the Beijing Municipal Commission of Education of China (Grant Nos. PXM2017_014204_500034 and PXM2016_014204_500018).

Corresponding Authors: Bao-Lu Guan, Chen Xu
E-mail: mailtogbl@bjut.edu.cn;xuchen58@bjut.edu.cn

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Guan-Zhong Pan(潘冠中), Bao-Lu Guan(关宝璐), Chen Xu(徐晨), Peng-Tao Li(李鹏涛), Jia-Wei Yang(杨嘉炜), Zhen-Yang Liu(刘振杨) Broad bandwidth interference filter-stabilized external cavity diode laser with narrow linewidth below 100 kHz 2018 Chin. Phys. B 27 014204

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Broad bandwidth interference filter-stabilized external cavity diode laser with narrow linewidth below 100 kHz

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