Title :
Wide field angle bi-aspherical waveguide lens in LiNbO3 fabricated by proton-exchange
Author :
Tatsumi, Kohei ; Nakaguchi, Takao ; Ito, Satoshi
Author_Institution :
Mitsubishi Electr. Corp., Kamakura
fDate :
4/28/1988 12:00:00 AM
Abstract :
A bi-aspherical waveguide lens with a focal length of 12 mm and an F-number of 4 was designed and fabricated for a Ti:LiNbO3 waveguide by the proton-exchange technique. The experimental results show that the lens has almost diffraction-limited focusing characteristics within the incident beam angle of ±6°, and 5 dB insertion loss
Keywords :
integrated optics; lenses; lithium compounds; optical waveguide components; titanium; F-number; LiNbO3:Ti; bi-aspherical waveguide lens; diffraction-limited focusing characteristics; focal length; incident beam angle; proton-exchange;
Journal_Title :
Electronics Letters
