Abstract

Lasing and self-frequency doubling are achieved in a millimeter-sized laser-active whispering-gallery resonator made of neodymium-doped lithium niobate. A low-cost 808-nm laser diode without external frequency stabilization is sufficient to pump the neodymium ions. Laser oscillation around 1.08 μm drives a frequency-doubling process within the same cavity providing green light. The electrical-optical efficiency of the system reaches up to 2×104. To the best of our knowledge, this is the first demonstration of combining lasing and χ(2) frequency conversion in a single high-Q whispering-gallery resonator. This approach is general and can be applied to other materials and other nonlinear optical processes.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Quasi-phase-matched self-pumped optical parametric oscillation in a micro-resonator

Simon J. Herr, Christoph S. Werner, Karsten Buse, and Ingo Breunig
Opt. Express 26(8) 10813-10819 (2018)

LED-pumped whispering-gallery laser

Simon J. Herr, Karsten Buse, and Ingo Breunig
Photon. Res. 5(6) B34-B38 (2017)

Geometric tuning: spectroscopy using whispering-gallery resonator frequency-synthesizers

Christoph S. Werner, Wataru Yoshiki, Simon J. Herr, Ingo Breunig, and Karsten Buse
Optica 4(10) 1205-1208 (2017)

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 (5)

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 (3)

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