Abstract

The modification of the spontaneous emission from various dipoles in a cylindrical dielectric waveguide is studied as a function of the refractive index and the radius of the waveguide. It is found that the emission rates of the axial dipoles and the radial dipoles can be modified to enhance greatly the fraction of radial dipole emission that goes into the guided lasing modes. The total emission from the axial dipoles can be suppressed. This combination gives a high spontaneous-emission factor β for a microcavity ring laser. Other microlaser structures that have high β values are also discussed. We conclude that microlasers based on strongly guided single-mode dielectric waveguides are promising devices for achieving high β values and low lasing thresholds.

© 1993 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Spontaneous lifetime in a dielectrically-apertured Fabry-Perot microcavity

Q. Deng and D.G. Deppe
Opt. Express 2(4) 157-162 (1998)

Spontaneous-emission factor of semiconductor diode lasers

Daniel T. Cassidy
J. Opt. Soc. Am. B 8(4) 747-752 (1991)

Angular distribution of the spontaneous emission in a planar dielectric dye microcavity

S. Ciancaleoni, P. Mataloni, O. Jedrkiewicz, and F. De Martini
J. Opt. Soc. Am. B 14(7) 1556-1563 (1997)

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 (9)

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 (33)

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