Tunable optical routing systems

Details Tunable optical routing systems Tunable optical routing systems

2005-04-25

2008-08-05

Evans, F. L. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

C356S339000, C385S018000, C385S017000

Reexamination Certificate

active

07408639

ABSTRACT:
An optical spectral detection device utilizing free space optical beam propagation is provided. The device includes at least one optical fiber input, at least one opto-electronic detection device, an optical element having an actuator with at least one tilt axis, and a diffraction element having a surface thereon. The device also includes an optical beam transfer arrangement positioned between the optical element and the diffraction element such that tilt actuation of the optical element elicits a proportional change in an angle of incidence of the optical beam onto the diffraction element, wherein the center of rotation for the angular change is the surface of the diffraction element. The spectral properties of the optical beam that are detected are selected by selectively positioning the optical element about at least one of the tilt axes.

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Doerr, C.R. et al., “Eight-Wavelength Add-Drop Filter with True Reconfigurability,” IEEE Photonics Technology Letters, vol. 15, No. 1, Jan. 2003, pp. 138-140.

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