Optical processing

Details Optical processing Optical processing

2006-12-05

2006-12-05

Ben, Loha (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S009000, C359S011000, C359S015000, C359S298000, C385S015000, C385S016000, C385S017000, C219S121730, C219S121750

Reexamination Certificate

active

07145710

ABSTRACT:
To operate an optical device comprising an SLM with a two-dimensional array of controllable phase-modulating elements groups of individual phase-modulating elements are delineated, and control data selected from a store for each delineated group of phase-modulating elements. The selected control data are used to generate holograms at each group and one or both of the delineation of the groups and the selection of control data is/are varied. In this way upon illumination of the groups by light beams, light beams emergent from the groups are controllable independently of each other.

REFERENCES:
patent: 4952010 (1990-08-01), Healey et al.
patent: 5107359 (1992-04-01), Ohuchida
patent: 5428466 (1995-06-01), Rejman-Greene et al.
patent: 5539543 (1996-07-01), Liu et al.
patent: 5589955 (1996-12-01), Amako et al.
patent: 5959747 (1999-09-01), Psaltis et al.
patent: 5995251 (1999-11-01), Hesselink et al.
patent: 6072608 (2000-06-01), Psaltis et al.
patent: 6115123 (2000-09-01), Stappaerts et al.
patent: 6710292 (2004-03-01), Fukuchi et al.
patent: 6975786 (2005-12-01), Warr et al.
patent: 1 050 775 (2000-11-01), None
patent: 1 053 501 (2003-07-01), None
patent: WO 01 25840 (2001-04-01), None
patent: WO 01 25848 (2001-04-01), None
patent: WO 01 90823 (2001-11-01), None
patent: WO 02 079870 (2002-10-01), None
patent: WO 02 101451 (2002-12-01), None
Marom, D.M., et al., “Wavelength-Selective 1×4 Switch for 128 WDM Channels at 50 Ghz Spacing,”OFC Postdeadline Paper, pp. FB7-1-FB7-3 (2002).
Mears, R. J., et al., “Telecommunications Applications of Ferroelectric Liquid-Crystal Smart Pixels,” IEEE Journal of Selected Topics in Quantum Electronics, vol. 2, No. 1, Apr. 1996, pp. 35-46.
Mears, R. J., et al., “WDM Channel Management Using Programmable Holographic Elements,” IEE Colloquim on Multiwavelength Optical Networks: Devices, Systems and Network Implementations, IEE, London, GB, Jun. 18, 1998, pp. 11-1-11-6.
Pan, Ci-Ling, et al., “Tunable Semiconductor Laser with Liquid Crystal Pixel Mirror in Grating-Loaded External Cavity,” Electronics Letters, IEE Stevenage, GB, vol. 35, No. 17, Aug. 19, 1999, pp. 1472-1473.

Affiliated with

Also associated with

Rating

Optical processing does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3667618