ARRAYED WAVEGUIDE GRATING WITH FLAT PASSBAND

WIPO Patent Application WO2002103435

A3

An array waveguide grating (AWG) device in which at least one additional waveguide (24) is provided for each input waveguide of the AWG. The or each additional waveguide is optically coupled to the first free space coupler (22) and disposed adjacent to the respective input waveguide (20). In some described embodiments, one or two such additional waveguides are provided adjacent to each input waveguide and have a tapered shape designed to transform adiabatically the a single peak field in the input waveguide to a multiple peak field which produces a flattened passband at the AWG channel outputs. The additional waveguides can alternatively be provided at the output side of the AWG. Also claimed is an optical power splitter based on the same adiabatic mode shaping structure.

WEERDEN HARM JAN VAN (NL)
BEELEN GUNTER (BE)

PCT/GB2002/002475

May 22, 2003

June 14, 2002

Click for automatic bibliography generation  

ALCATEL OPTRONICS UK LTD (GB)
WEERDEN HARM JAN VAN (NL)
BEELEN GUNTER (BE)

G02B6/28; G02B6/34; (IPC1-7): G02B6/34; G02B6/12

EP0881512A2	1998-12-02
US5926298A	1999-07-20

OKAMOTO K ET AL: "Flat spectral response arrayed-waveguide grating multiplexer with parabolic waveguide horns", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 32, no. 18, 29 August 1996 (1996-08-29), pages 1661 - 1662, XP006005618, ISSN: 0013-5194
SMIT M K ET AL: "PHASAR-BASED WDM-DEVICES: PRINCIPLES, DESIGN AND APPLICATIONS", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, IEEE SERVICE CENTER, US, vol. 2, no. 2, 1 June 1996 (1996-06-01), pages 236 - 250, XP000685236, ISSN: 1077-260X

View/Download PDF      PDF Help

Previous Patent: SHAPED INTERLAYER FOR HEADS-UP DISPLAY WINDSHIELDS AND PROCESS FOR PREPARING SAME

Next Patent: THIN PLANAR SWITCHES AND THEIR APPLICATIONS