Study on blazed grating array for beam shaping of laser diode array

zheng chun-yan; zheng guo-xing; zhou chong-xi; du chun-lei

Volume 17 Issue 05s

May 2005

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zheng chun-yan, zheng guo-xing, zhou chong-xi, et al. Study on blazed grating array for beam shaping of laser diode array[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

zheng chun-yan, zheng guo-xing, zhou chong-xi, et al. Study on blazed grating array for beam shaping of laser diode array[J]. High Power Laser and Particle Beams, 2005, 17.

zheng chun-yan, zheng guo-xing, zhou chong-xi, et al. Study on blazed grating array for beam shaping of laser diode array[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

zheng chun-yan, zheng guo-xing, zhou chong-xi, et al. Study on blazed grating array for beam shaping of laser diode array[J]. High Power Laser and Particle Beams, 2005, 17.

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Study on blazed grating array for beam shaping of laser diode array

1.
State Key Lab oratory of Optical Technologies for Microfabrication,Institute of Optics and Electronics, Chinese Academy of Sciences,P.O.Box 350,Chengdu 610209,China

Publish Date: 2005-05-20

Abstract

Abstract

The theory of beam shaping of laser diode array (LDA) is described and a beam-shaping system composed of two blazed grating arrays is presented. The system can theoretically transform the beam parameter product (BPP) of LDA into 5.7 mm·mrad in the fast axis and 8.9 mm·mrad in the slow axis. Experimental results indicate the BPP of the fast axis can be transformed into 12 mm·mrad and 9.5 mm·mrad for the slow axis after beam shaping. The beams can be coupled into the fiber of 200 μm diameter and numerical aperture of 0.22 after focused.
- laser technique,
- beam shaping,
- blazed grating,
- laser diode array,
- diffractive optical elements,
- fiber coupling

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