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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 6 — Jun. 1, 2013
  • pp: 1586–1589

Control of whispering-gallery-mode spectrum from erbium-doped silica microsphere lasers

Van Hoi Pham, Huy Bui, Thanh Son Pham, The Anh Nguyen, Thuy Van Nguyen, Huu Thang Le, Trung Ninh Bui, Van Phu Nguyen, and Roberto Coisson  »View Author Affiliations

JOSA B, Vol. 30, Issue 6, pp. 1586-1589 (2013)

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High-power whispering-gallery modes (WGMs) emitted from microcavity lasers have attracted attention for many applications, such as optical signal processing, spectroscopy, optical sensors, and large-bandwidth optical communications. In this paper, we present a simple approach for controlling the output WGMs of erbium-doped silica microsphere lasers. With the presented scheme, accurate adjustment of the coupling gap between the collection fiber taper and the spherical surface allows us to select different single modes of the microsphere laser or different multimode configurations (also functions of the waist diameter of taper and the Er-doped concentration). The nonlinear frequency shift of the microsphere cavity as a function of intracavity power has also been studied. The high intensity and high side mode suppression ratio of the obtained single WGM are suitable for spectroscopy, optical sensors, and communications.

© 2013 Optical Society of America

OCIS Codes
(140.3500) Lasers and laser optics : Lasers, erbium
(190.3970) Nonlinear optics : Microparticle nonlinear optics
(140.3945) Lasers and laser optics : Microcavities
(130.3990) Integrated optics : Micro-optical devices

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 29, 2013
Revised Manuscript: April 9, 2013
Manuscript Accepted: April 9, 2013
Published: May 20, 2013

Van Hoi Pham, Huy Bui, Thanh Son Pham, The Anh Nguyen, Thuy Van Nguyen, Huu Thang Le, Trung Ninh Bui, Van Phu Nguyen, and Roberto Coisson, "Control of whispering-gallery-mode spectrum from erbium-doped silica microsphere lasers," J. Opt. Soc. Am. B 30, 1586-1589 (2013)

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