Abstract

A numerical analysis of the modal reflectivity of tilted-facet laser-diode amplifiers is presented. It is shown that, with slightly angled facets, a large reduction of the reflectivity in a monomode diode should be achievable for TE and TM modes simultaneously either by applying a single-layer antireflection coating and optimizing the thickness and the width of the diode waveguide or by adiabatically uptapering the waveguide ends. A further significant reduction can be obtained by combining an antireflection coating with an uptapered waveguide. The characteristics of the dependence of the reflectivity on tilt angle and waveguide width and thickness are explained in terms of spectral overlaps between incident and reflected modes. The characteristic minima of the reflectivity are attributed to the oscillatory behavior of the spectra.

© 1991 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Laser diode facet modal reflectivity measurements

Kevin S. Repasky, Gregg W. Switzer, Casey W. Smith, and John L. Carlsten
Appl. Opt. 39(24) 4338-4344 (2000)

Approximate methods for modal reflectivity at optical waveguide facets

Jun Xu, David Yevick, and Michel Gallant
J. Opt. Soc. Am. A 12(4) 725-728 (1995)

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 (8)

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 (16)

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