Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2007-02-27
2007-02-27
Chan, Jason (Department: 2613)
Optical communications
Multiplex
Wavelength division or frequency division
C398S149000, C398S150000, C398S147000
Reexamination Certificate
active
10163574
ABSTRACT:
A chromatic dispersion compensator in a single-pass and a double-pass version is disclosed. In a single-pass version, the compensator has a diffractive grating for spatially separating an input optical signal into spatially spaced frequency components and a MEMS array of separate phase shifters, each for imparting an independent phase shift to a channel containing a range of the spatially spaced frequency components. In a double-pass version, a retroreflector is disposed to effect a double pass of the light beam through the grating and the phase shifters. The arrangement is effecting in reducing chromatic dispersion of the optical signal.
REFERENCES:
patent: 5166818 (1992-11-01), Chase et al.
patent: 5572355 (1996-11-01), Cotton et al.
patent: 5930045 (1999-07-01), Shirasaki
patent: 6392807 (2002-05-01), Barbarossa et al.
patent: 6636662 (2003-10-01), Thompson et al.
patent: 6892003 (2005-05-01), Katayama et al.
“A tunable dispersion compensating MEMS all-pass filter”; Madsen et al.; Photonics Technology Letters, IEEE vol. 12, Issue 6, Jun. 2000; pp. 651-653.
Quintic-phase-limited, spatially uniform expansion and recompression of ultrashort optical pulses, Lemoff et al, Oct. 1, 1993, vol. 18. No. 19, Optics Letters, Optical Society of America, pp. 1651-1653.
3000 Times Grating Compressor With Positive Group Velocity Dispersion: Application to Fiber Compensation in 1.3-1.6 μm Region, O. Martinez, IEEE Journal of Quantum Electronics, vol. QE-23, No. 1, Jan. 1987, pp. 59-64.
Ducellier Thomas
McLaughlin Sheldon
Morozov Valentine N.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Chan Jason
Curs Nathan
JDS Uniphase Corporation
JDS Uniphase Inc.
LandOfFree
Tunable dispersion compensator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tunable dispersion compensator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tunable dispersion compensator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3854923