Open AccessPhase-sensitive amplification in a single bi-directional PPLN waveguide
Author(s) -
André Albuquerque,
Benjamin J. Puttnam,
Miguel V. Drummond,
Áron Szabó,
Dániel Mazroa,
Satoshi Shinada,
Naoya Wada,
Rogério N. Nogueira
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.022063
Subject(s) - materials science , lithium niobate , optics , phase (matter) , signal (programming language) , phase shift keying , waveguide , optical fiber , optoelectronics , telecommunications , physics , bit error rate , channel (broadcasting) , quantum mechanics , computer science , programming language
We investigate phase-sensitive amplification (PSA) and phase regeneration of a binary phase-shift keying (BPSK) signal using a single periodically poled lithium niobate (PPLN) waveguide. The PPLN is operated bi-directionally in order to simultaneously achieve phase correlated signals and phase-sensitive (PS) operation. We use injection-locking for carrier phase recovery and a lead zirconate titanate (PZT) fiber stretcher to correct path length deviations in the in-line phase regenerator. We observe a trade-off between high PS gain provided by high pumping power and stability of the device.