Title :
WDM receiver with integrated optical preamplifier, aspheric lens and grating filter
Author :
Verdiell, J.-M. ; Koch, T.L. ; Young, M.G. ; Miller, B.I. ; Koren, U. ; Tell, B.
Author_Institution :
AT&T Bell Labs., Holmdel, NJ, USA
fDate :
5/27/1993 12:00:00 AM
Abstract :
A photonic integrated circuit implementing a receiver with an optical preamplifier and a wavelength filter for dense WDM systems has been fabricated. The integrated filter is based on planar optics and formed by a waveguide lens and Bragg grating combination. This arrangement provides a narrow filtering response of 0.4 nm and a high sidemode rejection ratio of 20 dB. A monolithically integrated preamplifier and photodetector are also incorporated to allow for high-sensitivity and high-speed operation.
Keywords :
aspherical optics; demultiplexing equipment; integrated optoelectronics; lenses; optical filters; optical receivers; preamplifiers; wavelength division multiplexing; Bragg grating combination; InGaAsP-InP; WDM receiver; aspheric lens; demultiplexing scheme; dense WDM systems; grating filter; high sidemode rejection ratio; high-sensitivity; high-speed operation; integrated optical preamplifier; narrow filtering response; photodetector; photonic integrated circuit; planar optics; waveguide lens; wavelength filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930660
