Title :
Dual polarisation optical hybrid using silica-based planar lightwave circuit technology for digital coherent receiver
Author :
Sakamaki, Y. ; Yamazaki, Hiroshi ; Mizuno, Takayuki ; Goh, Takashi ; Nasu, Y. ; Hashimoto, Toshikazu ; Kamei, Sayaka ; Hattori, K. ; Takahashi, Hiroki ; Kobayashi, Takehiko ; Ishikawa, Masatoshi
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
Described is a compact dual polarisation optical hybrid (DPOH) that has been achieved by integrating polarisation beam splitters and 90??-hybrids fabricated with silica-based planar lightwave circuit technology. The fabricated DPOH worked completely passively without any adjustments and its optical characteristics were sufficient for the coherent detection of 111??Gbit/s DPQPSK signals.
Keywords :
integrated optics; light coherence; optical beam splitters; optical fibre polarisation; optical receivers; quadrature phase shift keying; silicon compounds; DPQPSK; SiO2; bit rate 111 Gbit/s; coherent detection; compact dual polarisation optical hybrid; digital coherent receiver; dual polarisation quadrature phase-shift keying modulation; integrating polarisation beam splitters; optical characteristics; silica-based planar lightwave circuit;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2248
