Abstract

We describe a photothermal technique for wavelength modulation of a room-temperature diode laser at modulation frequencies up to a few kilohertz. This photothermal modulation is accomplished by exposing the diode laser to a low-power, amplitude-modulated helium–neon-laser beam. Advantages of photothermal wavelength modulation compared with the typical injection-current wavelength modulation are discussed.

© 1988 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Laser-diode interferometer with a photothermal modulation

Takamasa Suzuki, Mineki Matsuda, Osami Sasaki, and Takeo Maruyama
Appl. Opt. 38(34) 7069-7075 (1999)

2f-wavelength modulation Fabry-Perot photothermal interferometry

Johannes P. Waclawek, Volker C. Bauer, Harald Moser, and Bernhard Lendl
Opt. Express 24(25) 28958-28967 (2016)

Interferometric ellipsometer with wavelength-modulated laser diode source

Lionel R. Watkins and Maarten D. Hoogerland
Appl. Opt. 43(22) 4362-4366 (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 (3)

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 (7)

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