Optical: systems and elements – Holographic system or element – Having particular recording medium
Patent
1996-02-28
1997-09-16
Henry, Jon W.
Optical: systems and elements
Holographic system or element
Having particular recording medium
359 29, 359 27, 359559, G02B 2746, G03H 116
Patent
active
056686471
ABSTRACT:
An apparatus and method are disclosed for providing holographic matched filters for application in all-optical holographic processing of ultrahigh-speed optical data. A scaled spatial image of temporal-domain data is provided by a spatial light modulator (SLM). The scaled image of the SLM is read out with a single-mode diode laser and transformed into a wavelength spectrum by a Fourier transform lens. The interference fringe patterns between the spectrum of the scaled spatial data pattern and the reference pattern beam are recorded by a holographic recording medium. Alternatively, the scaled spatial image of the temporal data is fixed in an aperture mask. An apparatus and method are also disclosed for decoding high-speed optical signal packet headers using holographic matched filters.
REFERENCES:
patent: 3608992 (1971-09-01), Phelps
patent: 3612641 (1971-10-01), Eaglesfield
patent: 3899240 (1975-08-01), Gabor
patent: 4339176 (1982-07-01), Lee
patent: 4948212 (1990-08-01), Cheng et al.
patent: 4971409 (1990-11-01), Yeh et al.
patent: 5004325 (1991-04-01), Glass et al.
patent: 5080464 (1992-01-01), Toyoda
patent: 5103324 (1992-04-01), Brandstetter
patent: 5150228 (1992-09-01), Liu et al.
patent: 5150229 (1992-09-01), Takesue et al.
patent: 5216529 (1993-06-01), Paek et al.
patent: 5274716 (1993-12-01), Mitsuoka et al.
patent: 5289299 (1994-02-01), Paek et al.
J. Jahns et al., "Dammann Gratings for Laser Beam Shaping", Opt. Eng. vol. 28, 1989, pp. 1267-1275. No Month.
M.C. Nuss et al., "Time-to-Space Mapping of Femtosecond Pulses", Opt. Lett, vol. 19, 1994, pp. 664-666. No Month.
A. Partovi et al., "Volume Holographic Storage in Hydrogen Treated Germano-Silicate Glass", Appl. Phys. Lett. vol. 64, No. 7, 1994, pp. 821-823. No Month.
A. Partovi et al., "Cr-Doped GaAs/AlGaAs Semi-Insulating Multiple Quantum Well Photorefractive Devices", Appl. Phys. Lett. vol. 62, No. 5, 1993, pp. 464-466. No Month.
K. Smith et al., "All-Optical Clock Recovery Using a Mode-Locked Laser", Electronics Lett., vol. 28, No. 19, Sep. 1992, pp. 1814-1816.
A.M. Weiner et al., "High-Resolution Femtosecond Pulse Shaping", J. Opt. Soc. Am. B, vol. 5, 1988, pp. 1563-1572. No Month.
A.M. Weiner et al., "Programmable Shaping of Femtosecond Optical Pulses by Use of 128-Element Liquid Crystal Phase Modulator", IEEE J. Quant. Electr. vol. 28, No. 4, 1992, pp. 909-920. No Month.
T.K. Woodward et al., "GaAs/AlGaAs FET-SEED Receiver/Transmitters", Osa Proc. on Photonics in Switching, vol. 16, 1993, pp. 89-93. No Month.
A.M. Weiner et al., "Femtosecond Spectral Holography", IEEE Journal of Quantum Electronics, vol. 28, No. 10, Oct. 1992, pp. 2251-2261.
Henry Jon W.
Lucent Technologies - Inc.
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