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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 2 — Jan. 18, 2010
  • pp: 906–916

UV trimming of Polarization - independent Microring Resonator by Internal Stress and Temperature Control

Naoki Kobayashi, Tomoyuki Sato, and Yasuo Kokubun  »View Author Affiliations


Optics Express, Vol. 18, Issue 2, pp. 906-916 (2010)
http://dx.doi.org/10.1364/OE.18.000906


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Abstract

The temperature dependence of the resonant wavelength of vertically coupled microring resonator can be controlled via internal stress caused by the thermo-optic and photo-elastic effects. In the case of strong internal stress, a polarization-independent microring resonator can be realized by controlling the device surface temperature using a heater module; the temperature dependence of TE and TM polarizations are different due to the internal stress and thus manipulating temperatures, the resonant wavelengths for TE and TM can be equalized at a specific temperature. In this study, the UV trimming of polarization-independent wavelength was demonstrated using UV-sensitive SiON as a core material. The temperature dependence of TE polarization was almost athermalized and that of TM was made negative by controlling internal stress. As a result, the simultaneous realization of the UV trimming and the polarization-independent microring was made possible more easily than before; the UV trimming can be done at room temperature due to the athermalized resonant wavelength for TE polarization.

© 2010 Optical Society of America

OCIS Codes
(130.2755) Integrated optics : Glass waveguides
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Integrated Optics

History
Original Manuscript: November 10, 2009
Revised Manuscript: December 17, 2009
Manuscript Accepted: December 23, 2009
Published: January 6, 2010

Citation
Yasuo Kokubun, Naoki Kobayashi, and Tomoyuki Sato, "UV trimming of Polarization-independent Microring Resonator by Internal Stress and Temperature Control," Opt. Express 18, 906-916 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-2-906


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