Title :
An optical 90/spl deg/-hybrid balanced receiver module using a planar lightwave circuit
Author :
Norimatsu, Seiji ; Takachio, Noboru ; Inoue, Yasuyuki ; Hosoya, Masakaze ; Tsunetsugu, Hideki ; Hata, Susumu
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa, Japan
fDate :
6/1/1994 12:00:00 AM
Abstract :
An optical 90/spl deg/-hybrid coherent receiver module is constructed that uses the planar lightwave circuit technique. The module consists of an optical 90/spl deg/-hybrid silica planar waveguide and two 14 GHz balanced O/E converters; the solder-bump technique is employed. For both sets of paths between the optical coupler and the twin-p-i-n photodetector pairs, the effective propagation time differences were reduced to within 4 ps. A 10 Gb/s BPSK homodyne detection experiment confirms the feasibility of the receiver.<>
Keywords :
integrated optics; integrated optoelectronics; optical receivers; optical waveguides; p-i-n photodiodes; photodetectors; 10 Gbit/s; 14 GHz; 4 ps; BPSK homodyne detection; O/E converters; SiO/sub 2/; coherent receiver; optical 90/spl deg/-hybrid balanced receiver module; optical coupler; planar lightwave circuit; propagation time differences; silica planar waveguide; solder-bump; twin-p-i-n photodetector pairs; Binary phase shift keying; Coupling circuits; Optical coupling; Optical planar waveguides; Optical propagation; Optical receivers; Optical waveguides; Photodetectors; Planar waveguides; Silicon compounds;
Journal_Title :
Photonics Technology Letters, IEEE
