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Proceedings Paper

Diffractive optical elements improve vertical-cavity surface-emitting laser beam quality
Author(s): Junling Huo; JingJuan Zhang; Rui Liao; ShiMing Lin
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Paper Abstract

We research the probability of integrating a phase-only diffractive optical element (PDOE) with Vertical-Cavity Surface-Emitting laser. The slight variation of three parameters, i.e., beam waist width, wavelength and input Gaussian distribution are taken into consideration when we design the PDOE. Basing on the projected-onto-constraint- sets algorithm, a PDOE, which splits the image Gaussian beam into two equal intensity spots with the interval 30 micrometers between them at a certain plane, is designed. The simulation results show that the positions of two peaks keep stable and the width of them shifts slightly when the form of the incident wave shifts. The intensity distribution of wave field at the output plane can keep stable when the incident wavelength shifts between 0.66 micrometers and 0.68 micrometers , too. In addition, the corresponding results after the phase of PDOE being quantumlized is also shown.

Paper Details

Date Published: 19 August 1998
PDF: 7 pages
Proc. SPIE 3547, Semiconductor Lasers III, (19 August 1998); doi: 10.1117/12.319609
Show Author Affiliations
Junling Huo, Univ. of Science and Technology of China (China)
JingJuan Zhang, Univ. of Science and Technology of China (China)
Rui Liao, Univ. of Science and Technology of China (China)
ShiMing Lin, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 3547:
Semiconductor Lasers III
Qiming Wang; Lawrence J. Davis; Siamak Forouhar, Editor(s)

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