Title:
OPTICAL PERFORMANCE MONITOR
Document Type and Number:
WIPO Patent Application WO2003024011
Kind Code:
A3
Abstract:
An optical performance monitor for measuring the performance of optical networks has an echelle grating for demultiplexing an input beam into a plurality of wavelengths that are focused onto an array of divided output waveguides. Each divided output waveguide is positioned to receive a corresponding demultiplexed wavelength from the echelle grating or other waveguide multiplexer device. The divided output waveguides laterally separate the corresponding demultiplexed wavelength into a first and second portions. A detector array is positioned to receive the respective portions of the demultiplexed wavelengths and by comparing their relative intensity it is possible to detect any drift in the nominal wavelengths of the channels.
Inventors:
PEARSON MATT
ERICKSON LYDNEN
MILLER JOHN
JANZ SIEGFRIED
XU DAN-XIA
CHEBEN PAVEL
DELAGE ANDRE
LAMONTAGNE BORIS
CHARBONNEAU SYLVAIN
ERICKSON LYDNEN
MILLER JOHN
JANZ SIEGFRIED
XU DAN-XIA
CHEBEN PAVEL
DELAGE ANDRE
LAMONTAGNE BORIS
CHARBONNEAU SYLVAIN
Application Number:
PCT/CA2002/001385
Publication Date:
December 11, 2003
Filing Date:
September 12, 2002
Export Citation:
Assignee:
LNL OPTENIA INC (CA)
International Classes:
G01J3/18; G02B6/12; G02B6/34; H04B10/08; H04J14/02; G01J3/02; (IPC1-7): H04J14/02; G01J3/18; G02B6/34; H04B10/08
Domestic Patent References:
| WO1992011516A1 | 1992-07-09 | |||
| WO2001018577A1 | 2001-03-15 |
Foreign References:
| EP0703679A2 | 1996-03-27 | |||
| FR2764376A1 | 1998-12-11 | |||
| US4430572A | 1984-02-07 |
Other References:
POGUNTKE K R ET AL: "High-performance InP reflection-grating wavelength multiplexer", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 30, no. 6, 17 March 1994 (1994-03-17), pages 512 - 513, XP006000334, ISSN: 0013-5194
TESHIMA M ET AL: "Multiwavelength simultaneous monitoring circuit employing wavelength crossover properties of arrayed-waveguide grating", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 31, no. 18, 31 August 1995 (1995-08-31), pages 1595 - 1597, XP006003319, ISSN: 0013-5194
TESHIMA M ET AL: "Multiwavelength simultaneous monitoring circuit employing wavelength crossover properties of arrayed-waveguide grating", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 31, no. 18, 31 August 1995 (1995-08-31), pages 1595 - 1597, XP006003319, ISSN: 0013-5194
Download PDF:
Previous Patent: WDM NETWORK NODE MODULE
Next Patent: DYNAMIC CONTENT DELIVERY RESPONSIVE TO USER REQUESTS
Next Patent: DYNAMIC CONTENT DELIVERY RESPONSIVE TO USER REQUESTS