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Design of novel laser cavity with diffractive phase elements

✍ Scribed by Juan Liu; Guo-Zhen Yang; Bi-Zhen Dong; Ben-Yuan Gu

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
742 KB
Volume
34
Category
Article
ISSN
0030-3992

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✦ Synopsis

A new method based on the general theory of amplitude-phase retrieval is proposed for designing the di ractive phase elements (DPEs) used in the laser cavity that can produce the desired mode with the speciΓΏed shape of beam. Simulation results show that the laser cavity with the designed DPEs can successfully generate uniform square and triangle ring patterns. The loss of these fundamental modes is negligibly small and the separation of adjacent transverse modes is large enough to discriminate the fundamental mode from the higher-order modes.

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