OSA's Digital Library

Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 3 — Feb. 1, 2013
  • pp: 284–286

Whispering gallery mode resonators augmented with engraved diffraction gratings

David C. Aveline, Lukas M. Baumgartel, Guoping Lin, and Nan Yu  »View Author Affiliations

Optics Letters, Vol. 38, Issue 3, pp. 284-286 (2013)

View Full Text Article

Enhanced HTML    Acrobat PDF (499 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We report the demonstration of whispering gallery mode (WGM) resonators augmented with diffraction gratings. We apply focused ion beam (FIB) methods to precisely engrave a surface grating directly into the perimeter of a crystalline disc. The grating provides a simple and highly directional free-space coupling mechanism with superior stability to evanescent coupling techniques. These integrated gratings can also provide control of the resonance spectrum, significantly reducing the mode density. Our FIB fabrication process does not introduce significant loss; Q3×107 has been demonstrated. The wavelength dependence of the diffraction angle was found to be in excellent agreement with grating theory. The versatility of spectral control and far-field grating coupling will have significant impact in WGM resonator applications in lasers, sensors, and optoelectronics.

© 2013 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(140.4780) Lasers and laser optics : Optical resonators
(220.4000) Optical design and fabrication : Microstructure fabrication

ToC Category:
Lasers and Laser Optics

Original Manuscript: October 16, 2012
Revised Manuscript: December 27, 2012
Manuscript Accepted: January 2, 2013
Published: January 17, 2013

David C. Aveline, Lukas M. Baumgartel, Guoping Lin, and Nan Yu, "Whispering gallery mode resonators augmented with engraved diffraction gratings," Opt. Lett. 38, 284-286 (2013)

Sort:  Author  |  Year  |  Journal  |  Reset  


Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1. Fig. 2. Fig. 3.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited