Frequency and phase noise analysis in the 1550 nm external cavity diode laser with a cat-eye reflector

Yiwei Zhang; Zihan Jiang; Chunqing Gao

doi:10.1364/OE.553888

Frequency and phase noise analysis in the 1550 nm external cavity diode laser with a cat-eye reflector

Yiwei Zhang, Zihan Jiang, Chunqing Gao^*

^*Corresponding author for this work

School of Optics and Photonics

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

Abstract

A 1550 nm narrow linewidth external cavity diode laser with a cat-eye reflector has been demonstrated. Two silicon etalons are used as spectral filters, and a cat-eye reflector is used to suppress the frequency noise. The linewidth and noise characteristics of the laser are evaluated by using the delayed self-heterodyne interferometer. The laser has a Lorentzian linewidth of 5.1kHz at a maximum output power of 45 mW. The noise floor of the laser is 800Hz²/Hzand the phase noise is less than 1µrad/ √Hz at 1 MHz. The influences of the cat-eye reflector on the laser noise are investigated. The frequency noise caused by environmental vibration has been suppressed nearly 10 times less using the cat-eye reflector.

Original language	English
Pages (from-to)	11022-11031
Number of pages	10
Journal	Optics Express
Volume	33
Issue number	5
DOIs	https://doi.org/10.1364/OE.553888
Publication status	Published - 10 Mar 2025

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title = "Frequency and phase noise analysis in the 1550 nm external cavity diode laser with a cat-eye reflector",

abstract = "A 1550 nm narrow linewidth external cavity diode laser with a cat-eye reflector has been demonstrated. Two silicon etalons are used as spectral filters, and a cat-eye reflector is used to suppress the frequency noise. The linewidth and noise characteristics of the laser are evaluated by using the delayed self-heterodyne interferometer. The laser has a Lorentzian linewidth of 5.1kHz at a maximum output power of 45 mW. The noise floor of the laser is 800Hz2/Hzand the phase noise is less than 1µrad/ √Hz at 1 MHz. The influences of the cat-eye reflector on the laser noise are investigated. The frequency noise caused by environmental vibration has been suppressed nearly 10 times less using the cat-eye reflector.",

author = "Yiwei Zhang and Zihan Jiang and Chunqing Gao",

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AU - Zhang, Yiwei

AU - Jiang, Zihan

AU - Gao, Chunqing

PY - 2025/3/10

Y1 - 2025/3/10

N2 - A 1550 nm narrow linewidth external cavity diode laser with a cat-eye reflector has been demonstrated. Two silicon etalons are used as spectral filters, and a cat-eye reflector is used to suppress the frequency noise. The linewidth and noise characteristics of the laser are evaluated by using the delayed self-heterodyne interferometer. The laser has a Lorentzian linewidth of 5.1kHz at a maximum output power of 45 mW. The noise floor of the laser is 800Hz2/Hzand the phase noise is less than 1µrad/ √Hz at 1 MHz. The influences of the cat-eye reflector on the laser noise are investigated. The frequency noise caused by environmental vibration has been suppressed nearly 10 times less using the cat-eye reflector.

AB - A 1550 nm narrow linewidth external cavity diode laser with a cat-eye reflector has been demonstrated. Two silicon etalons are used as spectral filters, and a cat-eye reflector is used to suppress the frequency noise. The linewidth and noise characteristics of the laser are evaluated by using the delayed self-heterodyne interferometer. The laser has a Lorentzian linewidth of 5.1kHz at a maximum output power of 45 mW. The noise floor of the laser is 800Hz2/Hzand the phase noise is less than 1µrad/ √Hz at 1 MHz. The influences of the cat-eye reflector on the laser noise are investigated. The frequency noise caused by environmental vibration has been suppressed nearly 10 times less using the cat-eye reflector.

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Frequency and phase noise analysis in the 1550 nm external cavity diode laser with a cat-eye reflector

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