Wavelength division multiplexed device

Optical waveguides – With optical coupler – Plural

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C385S015000, C385S016000, C385S039000, C385S040000, C359S199200, C359S199200, C359S199200

Reexamination Certificate

active

06978062

ABSTRACT:
A wavelength division multiplexed device is based on a transmission grating spectrometer having at least two diffractive optical elements. The WDM device provides flexible use and may be widely applied in WDM systems. The device is useful for multiplexing and demultiplexing, channel monitoring, and for adding and dropping channels. The device provides programmability in use as an add/drop multiplexer.

REFERENCES:
patent: 4102576 (1978-07-01), Maeda et al.
patent: 5278687 (1994-01-01), Jannson et al.
patent: 5355237 (1994-10-01), Lang et al.
patent: 5559597 (1996-09-01), Battey et al.
patent: 5805759 (1998-09-01), Fukushima
patent: 5917625 (1999-06-01), Ogusu et al.
patent: 5966483 (1999-10-01), Chowdhury
patent: 5998796 (1999-12-01), Liu et al.
patent: 6108471 (2000-08-01), Zhang et al.
patent: 6137933 (2000-10-01), Hunter et al.
patent: 6144487 (2000-11-01), Michishita
patent: 6144783 (2000-11-01), Epworth et al.
patent: 6269203 (2001-07-01), Davies et al.
patent: 6275630 (2001-08-01), Yang et al.
patent: 6449066 (2002-09-01), Arns et al.
patent: 6459831 (2002-10-01), Cao et al.
patent: 2002/0050557 (2002-05-01), Kuroda et al.
patent: 2002/0054289 (2002-05-01), Thibault et al.
patent: 2003/0030793 (2003-02-01), Bastue et al.
patent: 2003/0067645 (2003-04-01), Ibsen et al.
patent: 1 001 287 (2000-05-01), None
patent: 1 052 868 (2000-11-01), None
patent: 2374142 (2002-10-01), None
patent: WO 01/09656 (2001-02-01), None
patent: WO 01/42825 (2001-06-01), None
patent: WO 02/057814 (2002-07-01), None
patent: WO 02/067475 (2002-08-01), None
Partial International Search for PCT/IB02/01869.
Churin et al.,“Passband flattening and broadening techniques for high spectral efficiency wavelength demultiplexers”, Electronic Letters, Jan. 7, 1999, vol. 35, No. 1.
International Search Report for PCT/EP02/09295.
U.S. Appl. No. 09/789,888, filed Feb. 21, 2001, Holm et al., “Grating structures and methods of making the grating structures”.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Wavelength division multiplexed device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wavelength division multiplexed device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wavelength division multiplexed device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3482600

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.