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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 10 — May. 20, 2013
  • pp: 12077–12084

In-line phase sensitive amplifier based on PPLN waveguides

Takeshi Umeki, Masaki Asobe, and Hirokazu Takenouchi  »View Author Affiliations


Optics Express, Vol. 21, Issue 10, pp. 12077-12084 (2013)
http://dx.doi.org/10.1364/OE.21.012077


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Abstract

We demonstrate a χ(2)-based in-line PSA with a carrier-recovery and phase-locking system for a phase shift keying (PSK) signal. By doubling the signal phase using a wavelength conversion technique, the carrier was recovered from a PSK signal. The carrier phase was synchronized to a local oscillator using optical injection locking. Phase sensitive amplification with a wide phase sensitive dynamic range of 20 dB was achieved using degenerate parametric amplification in a periodically poled LiNbO3 (PPLN) waveguide. The phase regeneration effect was examined for a degraded signal by means of constellation analyses and bit-error rate measurements. The in-line PSA also operated successfully as a repeater amplifier in a 160 km fiber link without a power penalty. Finally, we demonstrate the regeneration of non-linear impairments induced by fiber non-linearity.

© 2013 OSA

OCIS Codes
(130.3730) Integrated optics : Lithium niobate
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes

ToC Category:
Integrated Optics

History
Original Manuscript: March 15, 2013
Revised Manuscript: April 30, 2013
Manuscript Accepted: May 2, 2013
Published: May 10, 2013

Citation
Takeshi Umeki, Masaki Asobe, and Hirokazu Takenouchi, "In-line phase sensitive amplifier based on PPLN waveguides," Opt. Express 21, 12077-12084 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-10-12077


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