Device and method for an optical tunable polarization...

Details Device and method for an optical tunable polarization... Device and method for an optical tunable polarization...

2007-03-27

2007-03-27

Lavarias, Arnel (Department: 2872)

Optical: systems and elements

Extended spacing structure for optical elements

Extension of tubular element adjustable

C359S490020, C359S490020

Reexamination Certificate

active

10538825

ABSTRACT:
The tuner has constituent component for constructing a tunable or switchable spectral filter, including single and multiple stage filters and fitters without intermediate polarizer, over a wavelength range. It has elements arranged in cascade along a light beam axis including a dispersive polarization rotator that has its rotation angle ρ(λ) varying as a function of light wavelength lambda over the wavelength range.

REFERENCES:
patent: 4129357 (1978-12-01), Frosch et al.
patent: 2001/0010593 (2001-08-01), Terahara et al.
patent: 2004/0001255 (2004-01-01), Fratello
Chun Ye, “Wavelength-tunable spectral filters based on the optical rotatory dispersion effect”, Aug. 1, 2003, Applied Optics, vol. 42, No. 22, pp. 4505-4513.
Chun Ye, “Construction of an optical rotator using quarter-wave plates and an optical retarder”, Oct. 1995, Optical Engineering, vol. 34, No. 10, pp. 3031-3035.

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