Title :
Optical demultiplexer using concave grating in 0.7¿0.9 ¿m wavelength region
Author :
Watanabe, Ryuji ; Nosu, K. ; Harada, Tatsuya ; Kita, Toshihiro
Author_Institution :
NTT Yokosuka Electrical Communication Laboratory, Yokosuka, Japan
Abstract :
Experimental results of a demultiplexer using an aberration corrected concave grating for an optical system are described. The demultiplexer has 10 channels and a wavelength spacing of 20 mm from 0.7 to 0.9 ¿m wavelengths. Insertion losses and crosstalk were less than 2.5 dB and -30 dB, respectively, for all channels.
Keywords :
diffraction gratings; multiplexing equipment; optical communication equipment; aberration corrected concave grating; crosstalk; insertion losses; optical communication equipment; optical demultiplexer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800081
