Abstract

The experimental results of self-injection locking of an antireflection-coated broad-area diode laser with a 1000-μm-wide emitting area are presented. To our knowledge, it is the broadest single-element diode laser that has been used in an external-feedback cavity until now. Usually, wide diode lasers suffer from filamentation, which leads to poor spatial beam quality. We show, however, that the beam quality of the diode laser is improved significantly when we use asymmetric self-injection locking. An output power of 2.05W is obtained with a beam quality factor M2 of 2.7. The self-injection locking technique improves the beam quality by a factor of 107. By comparing the results with those obtained with an ordinarily coated diode laser with a 1000-μm-wide emitter we show that antireflection coating on the front facet is decisive for this improvement in the beam quality.

© 2005 Optical Society of America

Full Article  |  PDF Article
Related Articles
Tunable high-power narrow-linewidth semiconductor laser based on an external-cavity tapered amplifier

Mingjun Chi, Ole Bjarlin Jensen, Jesper Holm, Christian Pedersen, Peter Eskil Andersen, Götz Erbert, Bernd Sumpf, and Paul Michael Petersen
Opt. Express 13(26) 10589-10596 (2005)

High cw power using an external cavity for spectral beam combining of diode laser-bar emission

Andreas Jechow, Volker Raab, and Ralf Menzel
Appl. Opt. 45(15) 3545-3547 (2006)

100 mW high efficient single pass SHG at 488 nm of a single broad area laser diode with external cavity using a PPLN waveguide crystal

Andreas Jechow, Danilo Skoczowsky, and Ralf Menzel
Opt. Express 15(11) 6976-6981 (2007)

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 (4)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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