Optical: systems and elements – Optical modulator – Light wave directional modulation
Reexamination Certificate
2006-03-28
2006-03-28
Spector, David N. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave directional modulation
C219S121780, C219S121600, C219S121610, C359S305000, C359S307000
Reexamination Certificate
active
07019891
ABSTRACT:
Digital control of frequency and/or amplitude modulation techniques of an intracavity and/or extracavity AOM (60) facilitate substantially full extinction of a laser beam (90) to prevent unwanted laser energy from impinging a workpiece (80); facilitate laser pulse amplitude stability through closed-loop control of pulse-to-pulse laser energy; facilitate beam-positioning control including, but not limited to, closed-loop control for applications such as alignment error correction, beam walk rectification, or tertiary positioning; and facilitate employment of more than one transducer on an AOM (60) to perform any of the above-listed applications.
REFERENCES:
patent: 4532402 (1985-07-01), Overbeck
patent: 5197074 (1993-03-01), Emmons, Jr. et al.
patent: 5751585 (1998-05-01), Cutler et al.
patent: 5837962 (1998-11-01), Overbeck
patent: 5847960 (1998-12-01), Cutler et al.
patent: 6339604 (2002-01-01), Smart
patent: 6341029 (2002-01-01), Fillion et al.
patent: 6407363 (2002-06-01), Dunsky et al.
patent: 6430465 (2002-08-01), Cutler
patent: 6706999 (2004-03-01), Barrett et al.
patent: 2002/0117481 (2002-08-01), Unrath et al.
patent: 2003/0086447 (2003-05-01), Young et al.
patent: 2005/0161444 (2005-07-01), Kitai et al.
Electro-Optical Products Corporation, Variable Frequency Source, www.eopc.com/ddsxx.html, visited May 14, 2004, 2 pages.
Electro-Optical Products Corporation, Acousto-Optic X-Y Scanning System, www.eopc.com/dtsxy100—dtsxy250—dtsxy400.html, visited May 14, 2004, 2 pages.
Analog Devices, AD9852 product pages, and Rev. B (pp. 2-44) plus two circuit diagrams, www.analog.com/en/prod/0,2877,AD9852,00.html, visited May 10, 2005.
NEOS, AO Deflector Systems and Introduction to AO Modulators, www.neostech.com
eos/catalog/aodef.htm, visited May 14, 2004.
Claims from U.S. Appl. No. 11/138,659.
Claims from U.S. Appl. No. 11/138,076.
Claims from U.S. Appl. No. 11/138,078.
Claims from U.S. Appl. No. 11/138,075.
Claims from U.S. Appl. No. 11/138,657.
A.A. www.a-a.fr, AA.DDS.XX.pdf—DDS driver unit (Mar. 5, 2001).
A.A. www.a-a.fr, AA.DTS.XY.pdfXY—scanner (May 31, 2001).
A.A. www.a-a.fr, AA-AMP.B6-B7.pdf—linear RF amplifier (Feb. 1, 2000).
A.A., Acousto-optics from A.A. Sa, “Application Notes RF Drivers,” www.a-a.fr, (Undated).
Hobbs, Philip C.D.; Building Electro-Optical Systems: Making It All Work, copyright 2000, John Wiley & Sons. -7.10.4 Acousto optic cells pp. 236-238.
NEOS Technologies, 21080-1DS/1AS, Doc. No. 53D1702, analog RF driver package.
NEOS Technologies, 31110-4AS, Doc. No. 56A18228, analog RF driver (Jul. 20, 2005).
NEOS Technologies, 38085-6AS, Doc. No. 56A12675A, single output UV RF driver (1 page) (Apr. 20, 2004).
NEOS Technologies, 45125-2/10-.355-1, Doc. No. 56A12372A, UV single axis deflector (1 page) (May 2, 2005).
NEOS Technologies, 64010-200-2AMDFS, Doc. No. 56A15043C DDS digital frequency RF Driver (4 pages) (Dec. 14, 2004).
O'Shea, Donald C. ; PHYS 4220 Optical System Design, Georgia Tech School of Physics, Spring 2004, copyright 2004 Donald C. O'Shea, notes pp. 1-24.
Saleh, Bahaa E. A. and Teich, Malvin Carl; Fundamentals of Photonics, copyright 1991, John Wiley & Sons -Chapter 20: Acousto Optics pp. 800-819.
Wagner, Kelvin; Experiment No. 134, Acousto-Optic Devices, Department of Electrical and Computer Engineering, University of Colorado at Boulder, Optics Lab—ECEN 5606, pp. 1-25 (Apr. 5, 2004).
Electro Scientific Industries Inc.
Spector David N.
Stoel Rives LLP
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