Suppression of the intensity noise of monolithic non-planar ring oscillator laser

Xiu Yong Zhang; Ming Wei Gao; Chun Qing Gao

Suppression of the intensity noise of monolithic non-planar ring oscillator laser

Xiu Yong Zhang^*, Ming Wei Gao, Chun Qing Gao

^*Corresponding author for this work

School of Optics and Photonics

Beijing Institute of Technology

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

2 Citations (Scopus)

Abstract

The intensity noise properties of LD-pumped Nd:YAG non-planar ring oscillator (NPRO) laser are experimentally investigated. The increase of the laser output power induces the increase of the frequency of the relaxation oscillation noise (RON) peak from 100 kHz to 280 kHz and the width of the noise spectrum increase. Simultaneously the RON peak value decreases and the phase of π changes across the RON peak. The homemade optoelectronic feedback circuit can provide an adequate gain and a big phase advance of 65° at 500 kHz. Using the circuit, a result better than common results is achieved. For the noise with a RON frequency of 230 kHz, the experiment results show that the RON peak value and low frequency intensity noise are reduced about 45 dB and 20 dB, respectively.

Original language	English
Pages (from-to)	774-777
Number of pages	4
Journal	Guangxue Jishu/Optical Technique
Volume	34
Issue number	5
Publication status	Published - Sept 2008

Keywords

Laser diode
Non-planar ring oscillator
Optoelectronic negative feedback
Relaxation oscillation noise

Cite this

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title = "Suppression of the intensity noise of monolithic non-planar ring oscillator laser",

abstract = "The intensity noise properties of LD-pumped Nd:YAG non-planar ring oscillator (NPRO) laser are experimentally investigated. The increase of the laser output power induces the increase of the frequency of the relaxation oscillation noise (RON) peak from 100 kHz to 280 kHz and the width of the noise spectrum increase. Simultaneously the RON peak value decreases and the phase of π changes across the RON peak. The homemade optoelectronic feedback circuit can provide an adequate gain and a big phase advance of 65° at 500 kHz. Using the circuit, a result better than common results is achieved. For the noise with a RON frequency of 230 kHz, the experiment results show that the RON peak value and low frequency intensity noise are reduced about 45 dB and 20 dB, respectively.",

keywords = "Laser diode, Non-planar ring oscillator, Optoelectronic negative feedback, Relaxation oscillation noise",

author = "Zhang, {Xiu Yong} and Gao, {Ming Wei} and Gao, {Chun Qing}",

year = "2008",

month = sep,

language = "English",

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pages = "774--777",

journal = "Guangxue Jishu/Optical Technique",

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T1 - Suppression of the intensity noise of monolithic non-planar ring oscillator laser

AU - Zhang, Xiu Yong

AU - Gao, Ming Wei

AU - Gao, Chun Qing

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Y1 - 2008/9

N2 - The intensity noise properties of LD-pumped Nd:YAG non-planar ring oscillator (NPRO) laser are experimentally investigated. The increase of the laser output power induces the increase of the frequency of the relaxation oscillation noise (RON) peak from 100 kHz to 280 kHz and the width of the noise spectrum increase. Simultaneously the RON peak value decreases and the phase of π changes across the RON peak. The homemade optoelectronic feedback circuit can provide an adequate gain and a big phase advance of 65° at 500 kHz. Using the circuit, a result better than common results is achieved. For the noise with a RON frequency of 230 kHz, the experiment results show that the RON peak value and low frequency intensity noise are reduced about 45 dB and 20 dB, respectively.

AB - The intensity noise properties of LD-pumped Nd:YAG non-planar ring oscillator (NPRO) laser are experimentally investigated. The increase of the laser output power induces the increase of the frequency of the relaxation oscillation noise (RON) peak from 100 kHz to 280 kHz and the width of the noise spectrum increase. Simultaneously the RON peak value decreases and the phase of π changes across the RON peak. The homemade optoelectronic feedback circuit can provide an adequate gain and a big phase advance of 65° at 500 kHz. Using the circuit, a result better than common results is achieved. For the noise with a RON frequency of 230 kHz, the experiment results show that the RON peak value and low frequency intensity noise are reduced about 45 dB and 20 dB, respectively.

KW - Laser diode

KW - Non-planar ring oscillator

KW - Optoelectronic negative feedback

KW - Relaxation oscillation noise

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SN - 1002-1582

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JO - Guangxue Jishu/Optical Technique

JF - Guangxue Jishu/Optical Technique

IS - 5

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Suppression of the intensity noise of monolithic non-planar ring oscillator laser

Abstract

Keywords

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