Holographic optical system including waveplate and aliasing supp

Details Holographic optical system including waveplate and aliasing supp Holographic optical system including waveplate and aliasing supp

1995-03-13

1997-11-25

Dzierzynski, Paul M.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 1, 359 24, 359487, 359495, 359497, G02B 532, G02B 530, G02B 2728

Patent

active

056918305

ABSTRACT:
A holographic optical system includes volume hologram configurations providing a waveplate for, e.g. an optical storage device, and an aliasing suppression filter. The waveplate has diffraction characteristics adapted to impart a propagation delay for selected polarization directions. By controlling the propagation delay and the angle of an incident light beam, an output beam having altered polarization characteristics can be produced. Quarter waveplates for reflective optical storage systems and half waveplates for magneto-optical storage systems are disclosed. The holographic aliasing suppression filter divides an input optical beam into spatially separated components and may be configured to be polarization insensitive or color selective.

REFERENCES:
patent: 3588224 (1971-06-01), Pritchard
patent: 4100570 (1978-07-01), Nobutoki et al.
patent: 4245882 (1981-01-01), Chang
patent: 4472735 (1984-09-01), Shinozaki et al.
patent: 4497534 (1985-02-01), Sincerbox
patent: 4539584 (1985-09-01), Otake
patent: 4626897 (1986-12-01), Sato et al.
patent: 4637678 (1987-01-01), Moss et al.
patent: 4722037 (1988-01-01), Davis
patent: 4743100 (1988-05-01), Nakada et al.
patent: 4761682 (1988-08-01), Asaida
patent: 4776652 (1988-10-01), Ih
patent: 4848862 (1989-07-01), Yamazaki et al.
patent: 5009502 (1991-04-01), Shih et al.
patent: 5013107 (1991-05-01), Biles
patent: 5038352 (1991-08-01), Lenth et al.
J.B. Tait, "Multiple Hologram Readout", IBM Technical Disclosure Bullettin, vol. 11, No. 11 (Apr. 1969), p. 1391.
H. Kogelnik, "Coupled Wave Tehory for Thick Hologram Gratings", Bell System Technical Journal, vol. 48, No. 9 (Nov. 1969), pp. 2909-2947.
Collier et al., "Optical Holography", Academic Press (1971), pp. 228-264.
M.R. Latta et al., "Compact Single Element Bidirectional Optical Disk Lens Element", IBM Technical Disclosure Bulletin, vol. 31, No. 3 (Aug. 1988), pp. 18-23.
L.D. Dickson, et al., "Methods for the Reduction of Paper Noise in a Bar Code Scanner", IBM Technical Disclosure Bulletin, vol. 31, No. 9 (Feb. 1989), pp. 442-443.
J.E. Grievenkamp, "Color Dependent Optical Prefilter for the Suppression of Aliasing Artifacts", Applied Optics, vol. 29, No. 5 (Feb. 10, 1990), pp. 676-684.
L.H. Cescato et al., "Holographic Quarterwave Plates", Applied Optics, vol. 29, No. 22 (Aug. 1, 1990), pp. 3286-3290.

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