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刘艳格

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期刊论文

Stable room-temperature multi-wavelength lasing oscillationsin a Brillouin-Raman fiber ring laser

刘艳格Yan-ge Liu ab* Dongning Wangb Xiaoyi Dong a

Optics Communications 281(2008)5400-5404,-0001,():

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摘要/描述

A stable room-temperature multi-wavelength Brillouin–Raman fiber laser with a ring cavity configurationwas proposed and experimentally investigated. An obvious suppressant effect for unstable modehopping of multi-wavelength lasing oscillations induced by deeply saturated effect was observed inthe ring cavity configuration. Stable room-temperature multi-wavelength lasing oscillations with morethan 30 lasing lines and wavelength spacing of 0.076nm were obtained with only 250mW Raman pumppower and a section of high nonlinear fiber with a length of 1.5km. The lasing output is so stable that themaximum power fluctuations for the foremost three Stokes lines over more than 20 min of observationwere less than 0.30 dB. The lasing stability of the laser was also compared with a linear cavity configurationwith the same gain components and pump conditions. While using the linear laser cavity configuration,obvious mode hopping was observed. The minimum value of the maximum power fluctuationsat all lasing lines over more than 10min of observation was more than 0.90 dB.

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