Title :
Symbol-rate-variable DQPSK receiver fabricated using CMOS-compatible process
Author :
Suzuki, Keijiro ; Nguyen, Hong C. ; Tamanuki, Takemasa ; Shinobu, Fumihiro ; Saito, Yuji ; Sakai, Yuya ; Baba, Toshihiko
Author_Institution :
Dept. of Electr. & Comput. Eng., Yokohama Nat. Univ., Yokohama, Japan
fDate :
Oct. 30 2011-Nov. 2 2011
Abstract :
We demonstrate a silicon DQPSK receiver, that is symbol-rate variable, fabricated by using CMOS-compatible process. It consists of Si-wire waveguides, splitters/couplers, heater-controlled Mach-Zehnder attenuators, phase shifters, 90° hybrid including low-loss crossing and balanced Ge photodetectors. In addition, micro-ring-based slow-light device is introduced to demodulate various bit-rate signals. The demodulation was observed at bit-rates of 14.8 - 18.0 Gb/s.
Keywords :
CMOS integrated circuits; differential phase shift keying; germanium; micro-optics; optical couplers; optical fabrication; optical receivers; optical waveguides; phase shifters; photodetectors; quadrature phase shift keying; silicon; slow light; CMOS-compatible process; Ge; Ge photodetectors; Si; Si-wire waveguides; bit rate 14.8 Gbit/s to 18.0 Gbit/s; heater-controlled Mach-Zehnder attenuators; low-loss crossing; microring; phase shifters; silicon DQPSK receiver; slow-light device; splitters/couplers; symbol-rate variable; Europe; Noise measurement; Photonics; Receivers; Resistance heating;
Conference_Titel :
Microopics Conference (MOC), 2011 17th
Conference_Location :
Sendai
Print_ISBN :
978-1-4577-1344-6
