Title :
Monolithic integration of Si-silica waveguide delay line interferometer and germanium photodetectors for 25-Gbit/s DPSK demodulator
Author :
Hiraki, Tatsurou ; Fukuda, Hiroshi ; Tsuchizawa, Tai ; Kou, Rai ; Nishi, Hidetaka ; Takeda, Kenji ; Yamamoto, Takayuki ; Ishikawa, Yozo ; Wada, Kazuyoshi ; Yamada, Koji
Author_Institution :
Nanophotonics Center, NTT Corp., Atsugi, Japan
Abstract :
A straight-shape Si-silica waveguide delay-line interferometer and Ge photodetectros(PD) are monolithically integrated for a DPSK demodulator. The device with a foot-print of 0.49 mm2 and a fiber-to-PD responsitivity of 0.29 A/W successfully demodulates 25-Gbit/s-DPSK signals.
Keywords :
demodulators; differential phase shift keying; germanium; integrated optoelectronics; light interferometers; optical delay lines; photodetectors; silicon compounds; DPSK demodulator; DPSK signals; Ge; Si-silica waveguide delay line interferometer; SiO2; bit rate 25 Gbit/s; germanium photodetectors; monolithic integration; size 0.49 mm; Demodulation; Differential phase shift keying; Optical fiber couplers; Optical fiber devices; Phase shift keying; Silicon;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2014
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-5575-2994-7
DOI :
10.1364/OFC.2014.Th4C.6
