Abstract

We introduce the concept of directly exciting the lower level of a laser transition in addition to the upper laser level for the provision of new possibilities for light emission from a fiber. In a first demonstration, using diode laser light at 1150 and 1950 nm, we respectively excite the upper and lower laser level of the I56I57 transition (2.9 μm) of Ho3+-doped ZBLAN, demonstrating a power-scalable arrangement that can switch between free-running and superluminescent spectral output. The spectral composition of the gain-switched pulse derived from modulating the upper laser level pump light depends entirely on the degree of lower laser level excitation at 1950 nm.

© 2014 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Three- and four-level transition dynamics in Yb-fiber laser

Lasse Orsila and Oleg G. Okhotnikov
Opt. Express 13(9) 3218-3223 (2005)

High power ytterbium-doped rod-type three-level photonic crystal fiber laser

Johan Boullet, Yoann Zaouter, Rudy Desmarchelier, Matthieu Cazaux, François Salin, Julien Saby, Ramatou Bello-Doua, and Eric Cormier
Opt. Express 16(22) 17891-17902 (2008)

Dynamics of the output of heavily Tm-doped double-clad silica fiber lasers

Stuart D. Jackson and Terence A. King
J. Opt. Soc. Am. B 16(12) 2178-2188 (1999)

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 (6)

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

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