Wavelength demultiplexer

Details Wavelength demultiplexer Wavelength demultiplexer

1996-12-24

1998-05-12

Ngo, John

Optical waveguides

With optical coupler

Input/output coupler

385 46, G02B 634

Patent

active

057518726

ABSTRACT:
The demultiplexer comprises a diffraction space defined by a reception surface coupled to a grating. In order to obtain output waves of flattened spectral response, the input waveguide and the reception surface are dimensioned so that the input wave diffracts over said surface and presents a plurality of secondary lobes. The demultiplexer is particularly applicable to optical communications systems with wavelength multiplexing.

REFERENCES:
patent: 5136571 (1992-08-01), Dragone
patent: 5212758 (1993-05-01), Adar et al.
patent: 5243672 (1993-09-01), Dragone
patent: 5339157 (1994-08-01), Glance et al.
patent: 5367586 (1994-11-01), Glance et al.
patent: 5617234 (1997-04-01), Koga et al.
Hiroshi Takahashi et al, "Wavelength Multiplexer Based on SI02-TA 205 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.
R. Adar, "Broad-Band Array Mulplexers Made with Silica Waveguides on Silicon", Journal of Lightwave Technology, vol. 11, No. 2, 1 Feb. 1993, pp. 212-219.
Kenji Kawano et al, "Design of InGaas-Inalas Multiple-Quantum-Well (MQW) Optical Modulators", IEEE Journal of Quantum Electronics, vol. 28, No. 1, 1 Jan. 1992, pp. 224-230.

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