Title :
Monolithically integrated 100-channel WDM channel selector employing low-crosstalk AWG
Author :
Kikuchi, Nobuhiro ; Shibata, Yasuo ; Okamoto, Hiroshi ; Kawaguchi, Yoshihiro ; Oku, Satoshi ; Kondo, Yasuhiro ; Tohmori, Yuichi
Author_Institution :
NTT Photonics Labs., NTT Corp., Kanagawa, Japan
Abstract :
A 100-channel wavelength-division-multiplexing channel selector monolithically integrated on an InP substrate is demonstrated. The selector consists of two arrayed waveguide gratings (AWGs), two semiconductor-optical-amplifier (SOA)-gate arrays, and a multimode interference coupler. The selector employs improved AWGs whose crosstalk is reduced with higher order mode filters. Successful channel selection and lossless operation for all channels are achieved. Error-free operation at 10 Gb/s and small sensitivity penalties between 1.8 and 3.3 dB are obtained.
Keywords :
arrayed waveguide gratings; integrated optics; integrated optoelectronics; logic arrays; optical communication equipment; optical couplers; optical crosstalk; optical filters; semiconductor optical amplifiers; wavelength division multiplexing; 10 Gbit/s; 100-channel WDM selector; InP; InP substrate; SOA-gate arrays; WDM channel selector; arrayed waveguide gratings; channel selection; error-free operation; higher order mode filters; lossless operation; low-crosstalk AWG; monolithic integration; multimode interference coupler; semiconductor optical amplifier; sensitivity penalties; Arrayed waveguide gratings; Crosstalk; Error-free operation; Interference; Optical filters; Optical waveguides; Semiconductor optical amplifiers; Semiconductor waveguides; Tellurium; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.835195
