Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2005-04-19
2005-04-19
Schwartz, Jordan M. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S264000
Reexamination Certificate
active
06882456
ABSTRACT:
A pulse shaping apparatus for shaping an input optical pulse into an output optical pulse having substantially constant optical power, includes a modulator that acts upon the input optical pulse in response to a control signal. A sampling unit samples a portion of the input or output pulse and generates a sample signal that corresponds to the optical power of the input or output optical pulse. In a preferred embodiment, the sampling unit includes a power splitter that splits off sample portion of the input or output pulse, and directs the sample portion to the photodetector which generates the sample signal. Processing of the sample signal may be performed in either an analog or digital form.
REFERENCES:
patent: 4812776 (1989-03-01), Sasaki
patent: 4971417 (1990-11-01), Krinsky et al.
patent: 5126994 (1992-06-01), Ogawa et al.
patent: 5483372 (1996-01-01), Green, Jr.
patent: 5581387 (1996-12-01), Cahill
patent: 5594583 (1997-01-01), Devaux
patent: 6577782 (2003-06-01), Leaird et al.
patent: 2305042 (1997-03-01), None
patent: 63-28088 (1988-02-01), None
patent: 5-142592 (1993-06-01), None
patent: 11-261487 (1999-09-01), None
patent: WO 8907352 (1989-08-01), None
patent: WO97 30527 (1997-08-01), None
Weiner A.M.: “Femtosecond Optical Pulse Shaping and Processing”—Progress in Quantum Electronics, Pergamon Press, Oxford, GB, vol. 19, No. 3, 1995 pps 161-237; XP000653086; ISSN 0079-6727; p. 232, paragraph 4; Figure 5B.
Verluyten L. et al: “Laser Pulse Stretching Via Enhanced Closed Loop Control with Slow Q Switching” Nuclear Instruments & Methods in Physics Research, Section—A: Accelerators, Spectrometers, Detectors and Associated Equipment, North-Holland Publishing Company Amsterdam, NL; vol. A292, No. 2, Jul. 1, 1990, pps 313-318, XP000137272 ISSN: 0168-9002, Figure 1.
Yang W. et al: “Real-Time Adaptive Amplitude Feedback in an AOM-Based Ultrafast Optical Pulse Sahping System”, IEEE Photonics Technology Letters, IEEE Inc., New York, US; vol. 11, No. 12, Dec. 1999, pps 1665-1667, XP000926819, ISSN: 1041-1135, the whole document.
Crowell & Moring LLP
Roke Manor Research Limited
Schwartz Jordan M.
Stultz Jessica
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