Broad-area laser diode with 0.02 nm bandwidth and diffraction limited output due to double external cavity feedback

wu xiao-dong; chen jun; ge jian-hong

Volume 17 Issue 11

Nov. 2005

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Article Navigation > High Power Laser and Particle Beams > 2005 > 17(11): 0-

tang jingwu, liu lijuan, gao yongyi, et al. Resonance properties of surface plasma of sub-wavelength periodic perforated anisotropic metal film[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

wu xiao-dong, chen jun, ge jian-hong. Broad-area laser diode with 0.02 nm bandwidth and diffraction limited output due to double external cavity feedback[J]. High Power Laser and Particle Beams, 2005, 17.

tang jingwu, liu lijuan, gao yongyi, et al. Resonance properties of surface plasma of sub-wavelength periodic perforated anisotropic metal film[J]. High Power Laser and Particle Beams, 2011, 23.

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Broad-area laser diode with 0.02 nm bandwidth and diffraction limited output due to double external cavity feedback

1.
State Key Laboratory of Modern Optical Instrumentation,Zhejiang University,Hangzhou 310027,China

Publish Date: 2005-11-25

Abstract

Abstract

External cavity feedback for a broad-area laser diode (BAL) with antireflection coating on the front facet was investigated experimentally. The feedback was created by a high-reflection mirror and a blazed grating, which reflected two parts of the laser emission back to the BAL, thereby forming an external resonator. When a Fabry-Perot etalon was inserted into the resonator, an output beam with a bandwidth of 0.02 nm and a power of 150 mW was obtained. The beam diffraction limited factor M2 is 1.16.
- external feedback,
- single diffraction limited,
- broad area laser diode

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