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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 6 — Mar. 17, 2008
  • pp: 3577–3582

Increased pump acceptance bandwidth in spontaneous parametric downconversion process using Bragg reflection waveguides

Krishna Thyagarajan, Ritwick Das, Olivier Alibart, Marc de Micheli, Daniel B. Ostrowsky, and Sébastien Tanzilli  »View Author Affiliations

Optics Express, Vol. 16, Issue 6, pp. 3577-3582 (2008)

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In this paper we show that by suitably tailoring the dispersion characteristics of a Bragg reflection waveguide (BRW) mode, it is possible to achieve efficient photon pair generation over a large pump bandwidth while maintaining narrow signal bandwidth. The structure proposed consists of a high index core BRW with a periodically poled GaN core and periodically stratified cladding made up of alternate layers of Al0.02Ga0.98N and Al0.45Ga0.55N. Such photon-pair generators should find applications in realizing compact and stable sources for quantum information processing.

© 2008 Optical Society of America

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(230.1480) Optical devices : Bragg reflectors
(230.7390) Optical devices : Waveguides, planar

ToC Category:
Nonlinear Optics

Original Manuscript: November 14, 2007
Revised Manuscript: December 23, 2007
Manuscript Accepted: January 9, 2008
Published: March 3, 2008

Krishna Thyagarajan, Ritwick Das, Olivier Alibart, Marc d. Micheli, Daniel B. Ostrowsky, and Sébastien Tanzilli, "Increased pump acceptance bandwidth in spontaneous parametric downconversion process using Bragg reflection waveguides," Opt. Express 16, 3577-3582 (2008)

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