Optical component adapted to monitor a multiwavelength link and

Details Optical component adapted to monitor a multiwavelength link and Optical component adapted to monitor a multiwavelength link and

1996-08-28

1998-05-05

Palmer, Phan T. H.

Optical waveguides

With optical coupler

Input/output coupler

385 10, 385 24, 385 31, 359130, 359118, 359119, G02B 634

Patent

active

057488150

ABSTRACT:
Optical component adapted to monitor a multiwavelength link for use as an add-drop multiplexer in optical networks. The optical component includes an input fiber (68) for transmitting signals of different wavelengths, a diffraction grating (70) for dispersing these signals on several orders of diffraction, fibers (72, 74, 76 and 78) for recovering the dispersed signals corresponding to a given order of diffraction, and fibers (79, 80, 82, and 84) for recovering the same signals but corresponding to another order of diffraction so as to monitor the state of these signals.

REFERENCES:
patent: 4749247 (1988-06-01), Large
M.I. Irshid and M. Kavehard, A Fully Transparent Fiber-Optic Ring Architecture For WDM Networks, Journal of Lightwave Technology, vol. 10, No. 1, pp. 101-108, Jan. 1992.
A.F. Elrefaie and S. Zaidi, Fibre Amplifiers In Closed-Ring WDM Networks, Electronics Letters, vol. 28, No. 25, pp. 2340-2341, Dec. 3, 1992.
A. Hamel et al., Multilayer Add-Drop Multiplexers In A Self-Healing WDM Ring Network, OFC'95 Techniocal Digest, pp. 84-85.
J.P. Laude, Le Multiplexage En Longueur D'Onde, Masson, Chap. 7, pp. 39-50. JP-A-59 170815 (Hitachi).
Patent Abstracts Of Japan, vol. 11, No. 390 (E-567), 19 Dec. 1987, & JP-A-62-154685 (Matsushita).
Proceedings Of The International Conference On Communications (ICC), Geneva, May 23-26, 1993, vol. 1-2-03, May 23, 1993, Institute Of Electrical And Electronics Engineers, pp. 1245-1251, Elrefaie, A.F., "Multiwavelength Survivable Ring Network Architectures".
IEE Proceedings J. Optoelectronics, vol. 136, No. 3, Part J., Jun. 1, 1989, pp. 183-202, Senior J. M. et al., "Devices For Wavelength Multiplexing And Demultiplexing".

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