Title :
Silica-based 1 x 32 splitter integrated with 32 WDM couplers using multilayered dielectric filters for fiber line testing at 1.65 μm
Author :
Hida, Y. ; Inoue, Y. ; Hanawa, F. ; Fukumitsu, T. ; Enomoto, Y. ; Takato, N.
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki, Japan
Abstract :
We propose an integrated splitter with reflection-type couplers for combining the modules used for passive double star transmission and fiber line testing systems. We fabricated a silica-based 1×32 splitter with an array of 32 1.3-1.55/1.65 μm wavelength-division-multiplexing couplers using planar lightwave circuit technologies and by embedding multilayered dielectric filters in cross-waveguides located in the splitter outputs. We developed a 64-fiber array block to connect the 64 coupler input/output ports. We achieved low loss characteristics of /spl les/17.5 dB at 1.31 and 1.55 μm for the splitter and of /spl les/2.2 dB at 1.65 μm for the couplers.
Keywords :
optical beam splitters; optical communication equipment; optical couplers; optical losses; optical multilayers; optical planar waveguides; silicon compounds; wavelength division multiplexing; 1.3 to 1.55 mum; 1.3 to 1.65 mum; 1.65 mum; 17.5 dB; 64-fiber array block; WDM couplers; coupler input/output ports; cross-waveguides; fiber line testing; low loss characteristics; multilayered dielectric filters; optical couplers; passive double star transmission; planar lightwave circuit technologies; reflection-type couplers; silica-based 1/spl times/32 splitter integration; splitter outputs; wavelength-division-multiplexing couplers; Circuit testing; Dielectrics; Optical fiber couplers; Optical fiber devices; Optical fiber testing; Optical filters; Optical network units; Passive filters; System testing; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
