Title :
Monolithic integration of an ARROW-type demultiplexer and photodetector in the shorter wavelength region
Author :
Baba, Toshihiko ; Kokubun, Yasuo ; Watanabe, Hidehiro
Author_Institution :
Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
fDate :
1/1/1990 12:00:00 AM
Abstract :
A monolithic integration of an antiresonant reflecting optical waveguide (ARROW)-type demultiplexer and photodetector is discussed. The isolation was theoretically calculated to be -21.6 dB between the wavelengths of 0.78 and 0.88 μm, with a maximum detecting efficiency of 58% in a short demultiplexing/photodetecting length of 100 μm. The fundamental characteristic was demonstrated experimentally. This type of device can be applied to a wavelength division multiplexing (WDM) system with comparatively wide wavelength separation, e.g. 1.3- and 1.55-μm wavelengths
Keywords :
frequency division multiplexing; integrated optics; multiplexing equipment; optical waveguides; photodetectors; reflectivity; 0.78 to 0.88 micron; 1.3 micron; 1.55 micron; 100 micron; 58 percent; ARROW-type demultiplexer; antiresonant reflecting optical waveguide; detecting efficiency; isolation; monolithic integration; photodetector; short demultiplexing/photodetecting length; shorter wavelength region; wavelength division multiplexing; wavelength separation; Gratings; Interference; Monolithic integrated circuits; Optical films; Optical filters; Optical waveguides; Photodetectors; Semiconductor waveguides; Substrates; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
