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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 24 — Dec. 15, 2012
  • pp: 5193–5195

Thermal bistability-based method for real-time optimization of ultralow-threshold whispering gallery mode microlasers

Guoping Lin, Y. Candela, O. Tillement, Zhiping Cai, V. Lefèvre-Seguin, and J. Hare  »View Author Affiliations


Optics Letters, Vol. 37, Issue 24, pp. 5193-5195 (2012)
http://dx.doi.org/10.1364/OL.37.005193


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Abstract

A method based on thermal bistability for ultralow-threshold microlaser optimization is demonstrated. When sweeping the pump laser frequency across a pump resonance, the dynamic thermal bistability slows down the power variation. The resulting line shape modification enables a real-time monitoring of the laser characteristic. We demonstrate this method for a functionalized microsphere exhibiting a submicrowatt laser threshold. This approach is confirmed by comparing the results with a step-by-step recording in quasi-static thermal conditions.

© 2012 Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.6810) Lasers and laser optics : Thermal effects
(140.3945) Lasers and laser optics : Microcavities
(130.3990) Integrated optics : Micro-optical devices

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: October 15, 2012
Revised Manuscript: November 22, 2012
Manuscript Accepted: November 23, 2012
Published: December 12, 2012

Citation
Guoping Lin, Y. Candela, O. Tillement, Zhiping Cai, V. Lefèvre-Seguin, and J. Hare, "Thermal bistability-based method for real-time optimization of ultralow-threshold whispering gallery mode microlasers," Opt. Lett. 37, 5193-5195 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-24-5193


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References

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