Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2006-10-24
2006-10-24
Payne, David C. (Department: 2613)
Optical communications
Multiplex
Wavelength division or frequency division
C359S723000, C359S885000
Reexamination Certificate
active
07127172
ABSTRACT:
The present invention relates to an optical signal shaping device such as an optical filter having a profile such that transmission of light through the device varies as a function of frequency over a selected bandwidth. The optical signal shaping device of the present invention includes a frequency dependent disperser that disperses the input optical signal to form a dispersed signal having a plurality of frequencies, a frequency selective modulator that modulates at least one of the plurality of frequencies and a frequency dependent combiner that combines the frequencies to form a modulated output signal.
REFERENCES:
patent: 3766392 (1973-10-01), Nelson et al.
patent: 4746193 (1988-05-01), Heritage et al.
patent: 4805235 (1989-02-01), Henmi
patent: 4866699 (1989-09-01), Brackett et al.
patent: 4928316 (1990-05-01), Heritage et al.
patent: 5002350 (1991-03-01), Dragone
patent: 5042086 (1991-08-01), Cole et al.
patent: 5134509 (1992-07-01), Olshansky et al.
patent: 5136671 (1992-08-01), Dragone
patent: 5166818 (1992-11-01), Chase et al.
patent: 5173790 (1992-12-01), Montgomery
patent: 5317384 (1994-05-01), King
patent: 5329118 (1994-07-01), Riza
patent: 5329398 (1994-07-01), Lai et al.
patent: 5359412 (1994-10-01), Schulz
patent: 5359449 (1994-10-01), Nishimoto et al.
patent: 5373389 (1994-12-01), Huber
patent: 5379310 (1995-01-01), Papen et al.
patent: 5414540 (1995-05-01), Patel et al.
patent: 5414548 (1995-05-01), Tachikawa et al.
patent: 5493426 (1996-02-01), Johnson et al.
patent: 5541755 (1996-07-01), Noe et al.
patent: 5602677 (1997-02-01), Tournois
patent: 5689361 (1997-11-01), Damen et al.
patent: 5745616 (1998-04-01), Zirngibl
patent: 5793907 (1998-08-01), Jalali et al.
patent: 5870216 (1999-02-01), Brock et al.
patent: 5881199 (1999-03-01), Li
patent: 5889906 (1999-03-01), Chen
patent: 6021242 (2000-02-01), Harumoto et al.
patent: 6054938 (2000-04-01), Nakajima et al.
patent: 6122419 (2000-09-01), Kurokawa et al.
patent: 6263127 (2001-07-01), Dragone et al.
patent: 6282005 (2001-08-01), Thompson et al.
patent: 0 503 512 (1992-09-01), None
M. Zirngibl and C.H. Joyner, “High Performance, 12 frequency optical multichannel controller,”Electronics Letter, 30 (9): 700-701 (1994).
C.R. Doerr, “Proposed WDM Cross Connect Using a Planar Arrangement of Waveguide Grating Routers and Phase Shifters,”IEEE Photonics Technology Letters, 10 (4): 528-530 (1998).
Massachusetts Institute of Technology
Payne David C.
Weingarten Schurgin, Gagnebin & Lebovici LLP
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