Optical cross switching system
First Claim
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1. An optical system to control an optical signal, comprising:
- an array of beam defecting devices an array of receiving devices to receive the optical signal from a beam deflecting device in the array of beam defecting devices a highly transmissive sensor through which the optical signal passes, the sensor to detect and determine a position of the light signal the optical system using the determined position to adjust the beam defecting device in the array of beam defecting devices to allow the optical signal to reach a receiving device in the array of receiving devices.
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Abstract
An optical cross switch including an improved system to align optical components is described. The system utilizes a highly transmissive sensor positioned in the optical path of an optical signal to determine the precise position of the optical signal. A feedback loop uses output from the highly transmissive sensor to readjust elements that maintains the optical signal in a desired position. The current system is particularly suitable for use in an optical cross switch.
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Citations
24 Claims
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1. An optical system to control an optical signal, comprising:
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an array of beam defecting devices an array of receiving devices to receive the optical signal from a beam deflecting device in the array of beam defecting devices a highly transmissive sensor through which the optical signal passes, the sensor to detect and determine a position of the light signal the optical system using the determined position to adjust the beam defecting device in the array of beam defecting devices to allow the optical signal to reach a receiving device in the array of receiving devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An optical switching system to direct an optical signal comprising:
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a first array of movable mirrors including a first movable mirror;
a second movable mirror to receive optical signals from the first movable mirror and direct the optical signal to a selected optical fiber;
a first highly transmissive sensor to detect the position of the optical signal and signal when the optical signal is not directed to the selected optical fiber, when the optical signal is directed to the selected optical fiber, the optical signal passes through the first highly transmissive sensor into the selected optical fiber. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
a lens array including at least one lens to focus at least one optical signal from the second beam defecting device to the selected optical fiber.
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17. The optical switching system of claim 16 wherein the first highly transmissive sensor is positioned in an optical path between the second moveable mirror and the at least one lens in the lens array.
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18. The optical switching system of claim 15 further comprising:
a second highly transmissive sensor, the first highly transmissive sensor positioned in an optical path between the second moveable mirror and the selected optical fiber, the first highly transmissive sensor positioned in the optical path between the first array of mirrors and the second array of mirrors.
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19. The optical switching system of claim 16 wherein the highly transmissive sensor includes amorphous silicon as a sensing medium.
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20. The optical switching system of claim 15 wherein the second moveable mirror is part of a second array of moveable mirrors.
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21. The optical switching system of claim 15 wherein the highly transmissive sensor allows transmission of 90% of the incident optical energy in the optical signal.
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22. The optical switching system of claim 15 wherein the first moveable mirror is the mirrored surface of a prism.
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23. An optical system to control an optical signal, comprising:
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a beam directing device;
a receiving device to receive the optical signal from the beam directing device;
a highly transmissive sensor through which the optical signal passes, the sensor to detect and determine a position of the light signal, the optical system using the determined position to adjust the beam directing device to allow the optical signal to reach a receiving device in the array of receiving devices. - View Dependent Claims (24)
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Specification