Title:
WAVELENGTH DIVISION MULTIPLEXING COUPLER WITH LOSS ELEMENT
Document Type and Number:
WIPO Patent Application WO2004025843
Kind Code:
A3
Abstract:
A method and system for adjusting power at output ports of a wavelength division multiplexing (VVDM) coupler (12). A loss element (14) may be placed at one or more of the output ports (20, 22) of the WDM coupler. The loss element (14) may have a filter characteristic that compensates the temperature sensitivity coefficient of the WDM coupler (12). The filter characteristic may reject power at one of the two output ports as a function of temperature. As a result, the loss element may balance the power at the output ports (20, 22) of the WDM coupler (12) despite temperature variations.
Inventors:
BLAKE JAMES
LIU REN-YOUNG
LIU REN-YOUNG
Application Number:
PCT/US2003/028579
Publication Date:
May 06, 2004
Filing Date:
September 12, 2003
Export Citation:
Assignee:
HONEYWELL INT INC (US)
International Classes:
G02B6/00; G02B6/28; G02B6/42; G02B6/293; G02B6/34; (IPC1-7): G02B6/293; G02B6/28
Foreign References:
| US5469520A | 1995-11-21 | |||
| EP0372907A2 | 1990-06-13 | |||
| US6201918B1 | 2001-03-13 | |||
| US6081641A | 2000-06-27 | |||
| US6249623B1 | 2001-06-19 | |||
| US5684590A | 1997-11-04 |
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