Waveguide grating optical demultiplexer

Details Waveguide grating optical demultiplexer Waveguide grating optical demultiplexer

1996-12-24

1998-10-13

Ullah, Akm E.

Optical waveguides

With optical coupler

Particular coupling structure

372 6, G02B 600, G02B 636

Patent

active

058224815

ABSTRACT:
The demultiplexer has two couplers connected together by a grating of waveguides that are all of different lengths. To make a grating component of low order and that occupies little space, each waveguide has three adjacent segments having radii of curvature that are respectively positive, negative, and positive. The demultiplexer is particularly applicable to duplex optical communications.

REFERENCES:
patent: 5212758 (1993-05-01), Adar et al.
patent: 5396507 (1995-03-01), Kaminow et al.
patent: 5412744 (1995-05-01), Dragone
"Wavelength Multiplexer Based on SiO2-TA205 Arrayed-Waveguide Grating", Journal of Lightwave Technology, vol. 12, No. 6, pp. 989-995 By Hiroshi Takahashi et al, Jun. 1994.
Hiroshi Takahashi et al, "Wavelength Multiplexer Based on SI02-TA205 Arrayed-Waveguide Grating", Journal of Lightwave Technology, vol. 12, No. 6, 1 Jun. 1994, pp. 989-995.
A. R. Vellekoop et al, "A Small-Size Polarization Splitter Based on a Planar Optical Phased Array", Journal of Lightwave Technology, vol. 8, No. 1, 1 Jan. 1990, pp. 118-124.

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