Abstract

An optical isolator for semiconductor lasers, consisting of a polarizer and a quarterwave plate, was investigated experimentally. It was assembled in a compact laser-to-fiber coupling module. Experiment showed forward loss of 1.15 dB, backward loss of 24.8 dB, and rotative tolerance of 2.4 deg for 1 dB down. The length of the module is 43.2 mm. The coupling efficiency to a graded-index multimode fiber is 37.5%. The extinction ratio is improved by 6.75 dB. The suppression effect on the influence of reflected light was investigated, using the assembled module.

© 1980 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Optical isolator system for fiber-optic uses

George Lutes
Appl. Opt. 27(7) 1326-1328 (1988)

Enhanced light output power of quantum cascade lasers from a tilted front facet

Sangil Ahn, Clemens Schwarzer, Tobias Zederbauer, Hermann Detz, Aaron M. Andrews, Werner Schrenk, and Gottfried Strasser
Opt. Express 21(13) 15869-15877 (2013)

Interferometric optical isolator employing a nonreciprocal phase shift operated in a unidirectional magnetic field

Hideki Yokoi, Yuya Shoji, Etsu Shin, and Tetsuya Mizumoto
Appl. Opt. 43(24) 4745-4752 (2004)

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 (10)

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