Title :
First demonstration of in-line phase sensitive amplifier based on PPLN waveguide
Author :
Umeki, T. ; Takenouchi, H. ; Asobe, M.
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
We demonstrate a χ(2)-based in-line PSA with a carrier-recovery and phase-locking system using wavelength conversion and injection locking. Phase regenerative amplification is achieved for 40 Gb/s DPSK signals with a wide phase sensitive dynamic range of 20 dB. The in-line PSA also operates successfully as a repeater amplifier in a 160 km fiber link.
Keywords :
differential phase shift keying; injection locked amplifiers; lithium compounds; niobium compounds; optical parametric amplifiers; optical repeaters; optical waveguides; optical wavelength conversion; DPSK signal; LiNbO3; PPLN waveguide; bit rate 40 Gbit/s; carrier recovery system; distance 160 km; fiber link; in-line phase sensitive amplifier; injection locking; periodically poled LiNbO3 waveguide; phase locking system; phase regenerative amplification; repeater amplifier; wavelength conversion; wide phase sensitive dynamic range; Differential phase shift keying; Erbium-doped fiber amplifiers; Laser excitation; Noise; Optical fiber amplifiers; Optical fiber dispersion;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location :
Amsterdam
