Dynamic frequency-noise spectrum measurement for a frequency-swept DFB laser with short-delayed self-heterodyne method

Qian Zhou; Jie Qin; Weilin Xie; Zhangweiyi Liu; Yitian Tong; Yi Dong; Weisheng Hu

doi:10.1364/OE.23.029245

Dynamic frequency-noise spectrum measurement for a frequency-swept DFB laser with short-delayed self-heterodyne method

Qian Zhou, Jie Qin, Weilin Xie, Zhangweiyi Liu, Yitian Tong, Yi Dong, Weisheng Hu

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

We proposed and experimentally demonstrated a short-delayed self-heterodyne method with 15.5m delay to get a large-frequency-range laser frequency-noise spectrum over 10Hz to 50 MHz, and an averaging approach to extract the intrinsic frequency noise of a frequency-swept laser. With these two techniques, dynamic frequency-noise spectrum of a frequency-swept DFB laser when free running and servo-controlled are both measured. This measurement method permits accurate and insightful investigation of laser stability.

Original language	English
Pages (from-to)	29245-29257
Number of pages	13
Journal	Optics Express
Volume	23
Issue number	22
DOIs	https://doi.org/10.1364/OE.23.029245
Publication status	Published - 2 Nov 2015
Externally published	Yes

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Zhou, Q., Qin, J., Xie, W., Liu, Z., Tong, Y., Dong, Y., & Hu, W. (2015). Dynamic frequency-noise spectrum measurement for a frequency-swept DFB laser with short-delayed self-heterodyne method. Optics Express, 23(22), 29245-29257. https://doi.org/10.1364/OE.23.029245

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AU - Tong, Yitian

AU - Dong, Yi

AU - Hu, Weisheng

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Dynamic frequency-noise spectrum measurement for a frequency-swept DFB laser with short-delayed self-heterodyne method

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