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Optics Letters

Optics Letters


  • Vol. 28, Iss. 20 — Oct. 15, 2003
  • pp: 1945–1947

Engineering the nonlinear phase shift

Yan Chen, Geeta Pasrija, Behrouz Farhang-Boroujeny, and Steve Blair  »View Author Affiliations

Optics Letters, Vol. 28, Issue 20, pp. 1945-1947 (2003)

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We treat the nonlinear phase shift response in the weak perturbation limit as a linear digital filter that can be synthesized into the values of its poles and zeros and mapped onto an optical architecture. This procedure results in a significant enhancement in the nonlinear sensitivity with a response that is robust to frequency changes within the filter passband. A precompensation technique can be used to reduce distortions under strongly driven nonlinear operation to achieve a larger phase shift. We also show that nonlinear sensitivity improves with increasing filter group delay and can be increased within constant linear bandwidth by use of higher-order filters.

© 2003 Optical Society of America

OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(230.4320) Optical devices : Nonlinear optical devices

Yan Chen, Geeta Pasrija, Behrouz Farhang-Boroujeny, and Steve Blair, "Engineering the nonlinear phase shift," Opt. Lett. 28, 1945-1947 (2003)

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