Multi-wavelength cross-connect optical switch
First Claim
Patent Images
1. A fiber optic switch, comprising:
- (a) an array of actuated mirrors for switching optic signals from a plurality of input optic fibers onto a plurality of output optic fibers;
(b) a wavelength dispersive element;
(c) a plurality of lenses associated with said wavelength dispersive element;
(d) wherein said wavelength dispersive element and said plurality of lenses position optical beams from said input optic fibers onto said array of mirrors; and
(e) a plurality of optical elements for positioning optical beams reflected from said array of mirrors onto said output fibers.
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Abstract
A cross-connect switch for fiber-optic communication networks employing a wavelength dispersive element, such as a grating, and a stack of regular (non-wavelength selective) cross bar switches using two-dimensional arrays of micromachined, electrically actuated, individually-tiltable, controlled deflection micro-mirrors for providing multiport switching capability for a plurality of wavelengths. Using a one-dimensional micromirror array, a fiber-optic based MEMS switched spectrometer that does not require mechanical motion of bulk components or large diode arrays can be constructed with readout capability for WDM network diagnosis or for general purpose spectroscopic applications.
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Citations
20 Claims
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1. A fiber optic switch, comprising:
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(a) an array of actuated mirrors for switching optic signals from a plurality of input optic fibers onto a plurality of output optic fibers; (b) a wavelength dispersive element; (c) a plurality of lenses associated with said wavelength dispersive element; (d) wherein said wavelength dispersive element and said plurality of lenses position optical beams from said input optic fibers onto said array of mirrors; and (e) a plurality of optical elements for positioning optical beams reflected from said array of mirrors onto said output fibers. - View Dependent Claims (2, 3, 4, 5)
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6. A fiber optic switch, comprising:
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(a) an array of actuated mirrors for switching optic signals from a plurality of input optic fibers onto a plurality of output optic fibers; (b) a wavelength dispersive element; and (c) a plurality of lenses associated with said wavelength dispersive element; (d) wherein said wavelength dispersive element and said plurality of lenses position optical beams from said input optic fibers onto said array of mirrors. - View Dependent Claims (7, 8, 9, 10)
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11. A fiber optic switch, comprising:
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(a) an array of actuated mirrors for switching optic signals from a plurality of input optic fibers onto a plurality of output optic fibers; (b) a first wavelength dispersive element; (c) a first plurality of lenses associated with said first wavelength dispersive element; (d) a second wavelength dispersive element; and (e) a second plurality of lenses associated with said second wavelength dispersive element; (f) wherein said first wavelength dispersive element and said first plurality of lenses position optical beams from said input optic fibers onto said array of mirrors and wherein said second wavelength dispersive element and said second plurality of lenses position optical beams reflected by said array of mirrors onto said output optic fibers. - View Dependent Claims (12, 13)
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14. A fiber optic switch, comprising:
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(a) a plurality of input optic fibers; (b) a plurality of output optic fibers; (c) an array of actuated mirrors for switching optic signals from said input optic fibers onto said output optic fibers; (d) a first wavelength dispersive element; (e) a first plurality of lenses associated with said first wavelength dispersive element; (f) a second wavelength dispersive element; and (g) a second plurality of lenses associated with said second wavelength dispersive element; (h) wherein said first wavelength dispersive element and said first plurality of lenses position optical beams from said input optic fibers onto said array of mirrors and wherein said second wavelength dispersive element and said second plurality of lenses position optical beams reflected by said array of mirrors onto said output optic fibers. - View Dependent Claims (15, 16)
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17. A fiber optic spectrometer, comprising:
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(a) a fiber opt ic input path; (b) a fiber optic output path; (c) a detector; (d) an array of actuated mirrors for switching optic signals from said fiber optic input path to said fiber optic output path or said detector; (e) a wavelength dispersive element; and (f) a lens associated with said wavelength dispersive element; (g) wherein said wavelength dispersive element and said lens positions optical beams from said fiber optic input path onto said array of mirrors. - View Dependent Claims (18, 19)
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20. A fiber optic spectrometer, comprising:
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(a) an input optic fiber; (b) an output optic fiber; (c) a detector; (d) an array of actuated mirrors for switching optic signals from said input optic fiber onto said output optic fiber or said detector; (e) a wavelength dispersive element; and (f) a lens associated with said wavelength dispersive element; (g) wherein said wavelength dispersive element and said lens positions optical beams from said input optic fiber onto said array of mirrors.
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Specification