Chinese Optics Letters, 2012, 10 (10): 101402, Published Online: Aug. 3, 2012  

Coherent beam combination of broad-area laser diode array using of f-axis external cavity with double feedback Download: 677次

Author Affiliations
Abstract
In this letter, we demonstrate coherent beam combination of laser diode array using the external Talbot cavity with double feedback. The double feedback elements consist of grating and high-reflection plane mirror. Compared with single high-reflection plane mirror feedback, the external Talbot cavity with double feedback reduce the number of interference strips in the far-field pattern and narrow spectral line-width of the laser diode array. The results indicate that the application of the external Talbot cavity with double feedback produces a clear far-field interference pattern. In addition, line-width is reduced to 0.15 nm full-width at half-maximum (FWHM).

Zhouping Su, Zhicheng Ji, Lizhi Que, Zhuowei Zhu. Coherent beam combination of broad-area laser diode array using of f-axis external cavity with double feedback[J]. Chinese Optics Letters, 2012, 10(10): 101402.

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