Title :
20-Gbps silicon photonic waveguide nested Mach-Zehnder QPSK modulator
Author :
Ogawa, Koichi ; Goi, Kazuhiro ; Kusaka, Hiroyuki ; Oda, K. ; Tsung-Yang Liow ; Xiaoguang Tu ; Guo-Qiang Lo ; Dim-Lee Kwong
Author_Institution :
Opt. & Electron. Lab., Fujikura Ltd., Sakura, Japan
Abstract :
Silicon photonic waveguide nested Mach-Zehnder modulators having rib-waveguide planar P-N junction phase shifters are fabricated and characterized in constellation and transmittance measurements. 20-Gbps QPSK constellation is observed with optical loss lower than 15 dB at wavelengths of 1550 and 1590 nm.
Keywords :
elemental semiconductors; infrared spectra; integrated optoelectronics; optical fabrication; optical losses; optical modulation; optical phase shifters; optical waveguides; p-n junctions; quadrature phase shift keying; rib waveguides; silicon; QPSK constellation; Si; bit rate 20 Gbit/s; constellation measurement; optical loss; rib-waveguide planar P-N junction phase shifters; silicon photonic waveguide nested Mach-Zehnder QPSK modulator; transmittance measurement; wavelength 1550 nm to 1590 nm; Optical fibers; Optical interferometry; Optical modulation; Silicon;
Conference_Titel :
Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2012 and the National Fiber Optic Engineers Conference
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-1-4673-0262-3
