A method of designing aberration-corrected concave gratings and their mounting for optical demultiplexers is described. An aberration-corrected concave grating for a demultiplexer has been designed and fabricated for use in a six-channel multiplex system in the 800-nm wavelength region. A coupling efficiency of 55% and signal cross talk of less than ~3 × 10-4 have been achieved experimentally.
© 1983 Optical Society of America
Toshiaki Kita and Tatsuo Harada, "Use of aberration-corrected concave gratings in optical demultiplexers," Appl. Opt. 22, 819-825 (1983)