Share Email Print
cover

Proceedings Paper

Microlens array for stacked laser diode beam collimation
Author(s): Qiling Deng; Chunlei Du; Changtao Wang; Chongxi Zhou; Xiaochun Dong; Yinghui Liu; Tao Zhou
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

To collimate effectively the beam emitted from the stacked laser diode in which the lasing surfaces of the diode bars are not located in a plane, a new type of fast-axis collimator, refractive cylindrical microlens array with tunable focal lengths, is presented in this paper. Each lens of the array has the same diameter of 300μm but different focal lengths, ranged from 430μm to 540μm. By means of the mask moving lithography and replication technology, the microlens array was successfully fabricated. The measured fast-axis divergence of the stacked laser diode beam after the collimator was 25mrad, about half of the one (40mrad) for the microlens array with common focal lengths of 400μm.

Paper Details

Date Published: 7 February 2005
PDF: 5 pages
Proc. SPIE 5636, Holography, Diffractive Optics, and Applications II, (7 February 2005); doi: 10.1117/12.575342
Show Author Affiliations
Qiling Deng, Institute of Optics and Electronics, CAS (China)
Chunlei Du, Institute of Optics and Electronics, CAS (China)
Changtao Wang, Institute of Optics and Electronics, CAS (China)
Chongxi Zhou, Institute of Optics and Electronics, CAS (China)
Xiaochun Dong, Institute of Optics and Electronics, CAS (China)
Yinghui Liu, Institute of Optics and Electronics, CAS (China)
Tao Zhou, Institute of Optics and Electronics, CAS (China)


Published in SPIE Proceedings Vol. 5636:
Holography, Diffractive Optics, and Applications II
Yunlong Sheng; Dahsiung Hsu; Chongxiu Yu; Byoungho Lee, Editor(s)

© SPIE. Terms of Use
Back to Top