Coherent beam combination of broad-area laser diode array using of f-axis external cavity with double feedback
Chinese Optics Letters, Vol. 10, Issue 10, pp. 101402-101402 (2012)
Acrobat PDF (196 KB)
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).
© 2012 Chinese Optics Letters
OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.2010) Lasers and laser optics : Diode laser arrays
(140.3410) Lasers and laser optics : Laser resonators
(140.3298) Lasers and laser optics : Laser beam combining
ToC Category:
Lasers and Laser Optics
Citation
Zhouping Su, Zhicheng Ji, Lizhi Que, and Zhuowei Zhu, "Coherent beam combination of broad-area laser diode array using of f-axis
external cavity with double feedback," Chin. Opt. Lett. 10, 101402-101402 (2012)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-10-10-101402
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