Abstract

A high-power diode laser bar coupling scheme with rectangular optical fibers is proposed, and the concept is tested on a scale version: an individual diode laser array and a single rectangular fiber. 60% of the power from a 1-W cw, 213-μm-wide 20-stripe diode array is coupled into a 216 μm × 28 μm 0.66 numerical aperture optical fiber, which produces intensities at the fiber output face of 9.9 kW cm−2. The elliptical, dual-lobed far-field intensity pattern of the diode laser output, with divergence of 39° × 13° FWHM is converted on passing through the fiber into a single-lobed, nearly circular pattern with a FWHM divergence of 21° × 22°. The beam quality is reduced by only a factor of 30 when this coupling method is used. Alignment tolerances in the three planes of movement are measured and found to be in excess of 10 μm.

© 1993 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Efficient Nd:YAG laser end pumped by a high-power multistripe laser-diode bar with multiprism array coupling

Satoshi Yamaguchi, Tetsuro Kobayashi, Yoshimasa Saito, and Koichi Chiba
Appl. Opt. 35(9) 1430-1435 (1996)

Diode pumping of a solid state laser using evanescent field fiber optic coupling: a proposed technique

Phillip H. Howerton and D. M. Cordray
Appl. Opt. 30(15) 1911-1915 (1991)

Coupling method for laser-diode-array end-pumped solid-state amplifiers

Deng Qinghua, Peng Hansheng, Sui Zhan, Ding Lei, Li Mingzhong, Luo Yiming, Tang Jun, He Shaobo, Wang Jianjun, Lin Honghuan, Zhang Rui, Deng Ying, Cheng Yuanbin, Lu Zhenhua, Liu Jianguo, and Liu Yong
Appl. Opt. 47(31) 5908-5915 (2008)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription