Filter for selectively processing optical and other signals

Optical: systems and elements – Lens – Selective wavelength transmitting or blocking

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C359S344000

Reexamination Certificate

active

07042657

ABSTRACT:
A multi-section filter is provided for use in processing optical signals and other signals that can be readily projected from one filter section to another. Filters of the invention can be configured in numerous forms, including IIR and FIR filters and both linear and 2D active optical lattice filters. Filter sections are coupled together by means of four direction couplers and surface grating couplers, and may be implemented as GSE photonic integrated circuit devices.

REFERENCES:
patent: 3828231 (1974-08-01), Yamamoto
patent: 4146297 (1979-03-01), Alferness et al.
patent: 4588255 (1986-05-01), Tur et al.
patent: 4768850 (1988-09-01), Moslehi et al.
patent: 5022730 (1991-06-01), Cimini et al.
patent: 5233187 (1993-08-01), Sakata et al.
patent: 5343496 (1994-08-01), Honig et al.
patent: 5363403 (1994-11-01), Schilling et al.
patent: 5438637 (1995-08-01), Nilsson et al.
patent: 5481533 (1996-01-01), Honig et al.
patent: 5553062 (1996-09-01), Schilling et al.
patent: 5572442 (1996-11-01), Schulhof
patent: 5581642 (1996-12-01), Deacon et al.
patent: 5629929 (1997-05-01), Blanchard et al.
patent: 5644592 (1997-07-01), Divsalar et al.
patent: 5671247 (1997-09-01), Souissi et al.
patent: 5680419 (1997-10-01), Bottomley
patent: 5687162 (1997-11-01), Yoshida et al.
patent: 5719852 (1998-02-01), Schilling et al.
patent: 5754714 (1998-05-01), Suzuki et al.
patent: 5757832 (1998-05-01), Uchida
patent: 5838714 (1998-11-01), Delorme
patent: 6023366 (2000-02-01), Kinoshita
patent: 6181843 (2001-01-01), Lee et al.
patent: 6353690 (2002-03-01), Kulishov
patent: 6456766 (2002-09-01), Shaw et al.
patent: 6483632 (2002-11-01), Jolley et al.
patent: 6552834 (2003-04-01), Bhatia et al.
patent: 6563631 (2003-05-01), Delprat et al.
patent: 6687032 (2004-02-01), King et al.
patent: 6687461 (2004-02-01), MacFarlane et al.
patent: 6782168 (2004-08-01), Hatayama et al.
patent: 6785446 (2004-08-01), Chandrasekhar et al.
patent: 6853756 (2005-02-01), Gerlach et al.
patent: 2003/0180023 (2003-09-01), Hamada
patent: 2004/0228384 (2004-11-01), Oh et al.
Numai et al. 1.5 micron tunable wavelength filter using a phase-shift-controlled distributed feedback laser diode with a wide tuning range and a high constant gain. Appl. Phys. Lett. 54 (19), May 8, 1989. pp. 1859-1860.
SMU Photonics Group. Active Optical Filters. http://www.atis.org/tg2k/—transfer—function.html. date unavailable.
Umesh G. Jani, et al.; Multiuser Interference Suppression Using Block Shanno Constant Modulus Algorithm,IEEE Transactions on Signal Processing;May 2000; 1503-1506 pp.; vol. 48, No. 5.

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

Filter for selectively processing optical and other signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filter for selectively processing optical and other signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter for selectively processing optical and other signals will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3611549

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