Title :
All-in-One 112-Gb/s DP-QPSK Optical Receiver Front-End Module Using Hybrid Integration of Silica-Based Planar Lightwave Circuit and Photodiode Arrays
Author :
Ohyama, Takaharu ; Ogawa, Ikuo ; Tanobe, Hiromasa ; Kasahara, Ryoichi ; Tsunashima, Satoshi ; Yoshimatsu, Toshihide ; Fukuyama, Hiroyuki ; Itoh, Toshihiro ; Sakamaki, Yohei ; Muramoto, Yoshifumi ; Kawakami, Hiroto ; Ishikawa, Mitsuteru ; Mino, Shinji ; Mu
Author_Institution :
NTT Photonics Labs., NTT Corp., Yokosuka, Japan
fDate :
4/15/2012 12:00:00 AM
Abstract :
We propose a new hybrid integrated optical front-end module for a 100-Gb/s-class coherent receiver using silica-based planar lightwave circuit (PLC) technology. We have developed an integrated structure composed of multichannel microcollimator optics between PLC waveguides and photodiodes (PDs), and compact hermetically sealed optical-to-electrical converters with a PD array and a transimpedance amplifier array to maintain reliability. We used the technology to fabricate an all-in-one optical front-end module for a dual polarization quadrature phase-shift-keying (DP-QPSK) coherent receiver, and confirmed that the module operated successfully for 112-Gb/s DP-QPSK signal detection.
Keywords :
integrated optics; modules; operational amplifiers; optical arrays; optical collimators; optical fibre communication; optical modulation; optical receivers; photodiodes; quadrature phase shift keying; silicon compounds; telecommunication network reliability; DP-QPSK; PLC waveguides; SiO2; bit rate 100 Gbit/s; bit rate 112 Gbit/s; coherent receiver; dual polarization quadrature phase-shift-keying; hybrid integration; multichannel microcollimator optics; optical receiver front-end module; optical-to-electrical converters; photodiode arrays; reliability; silica-based planar lightwave circuit; transimpedance amplifier array; High speed optical techniques; Optical amplifiers; Optical device fabrication; Optical polarization; Optical receivers; Signal detection; Coherent receiver; collimator optics; dual polarization quadrature phase-shift keying (DP-QPSK); hybrid integration; optical front-end; planar lightwave circuit (PLC);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2185042
