Title :
First demonstration of noise figure below 3 dB in CW pumped phase sensitive amplifier using PPLN waveguide
Author :
Asobe, Masaki ; Umeki, Takeshi ; Tadanaga, Osamu
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
A noise figure below 3 dB was obtained for the first time in a CW pumped PSA based on a PPLN waveguide. The 40 Gbit/s-DPSK receiver sensitivity was improved by using the PSA as a preamplifier.
Keywords :
lithium compounds; optical pumping; optical receivers; optical waveguides; phase shift keying; DPSK receiver; LiNbO3; PPLN waveguide; bit rate 40 Gbit/s; continuous wave pumped phase sensitive amplifier; preamplifier; Erbium-doped fiber amplifier; Noise; Noise measurement; Optical fiber amplifiers; Preamplifiers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
