Transceiver for a wireless optical telecommunication system
First Claim
1. A system, comprising:
- a holographic optical element (HOE) device having;
a first element having first and second surfaces, the first surface being positionable to face incident light rays, an emulsion material disposed over the second surface of the first element and having a recorded interference pattern thereon, and a second element having a first surface disposed over the emulsion material, the second element being structured to pass resulting light rays, derived from the incident light rays diffracted by the recorded interference pattern, in a direction towards a location facing a second surface of the second element;
an optical processing unit to receive the resulting light rays passed by the second element; and
a transmitter unit disposed at least in part behind the second surface of the second element, the transmitter unit comprising an optical fiber capable to provide a light signal, a first and a second optical element to expand the light signal provided by the optical fiber, a third optical element to control divergence of the expanded light signal, and a fourth optical element to collimate light that exits from the transmitter unit.
3 Assignments
0 Petitions
Accused Products
Abstract
A holographic optical element (HOE) device is mounted in wireless optical telecommunication system transceiver. The HOE device includes a developed emulsion material having an interference pattern recorded thereon, sandwiched between a pair of elements, such as a pair of clear glass plates. In operation, the HOE device uses the recorded interference pattern to diffract received light rays towards an optical processing unit of the system receiver. A transmitter unit can be positioned at least in part behind the HOE device. An opening in the emulsion material allows a light signal transmitted from the transmitter unit to be substantially unaffected by the recorded interference pattern. The transceiver can also include a spotting scope and an alignment beacon.
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Citations
31 Claims
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1. A system, comprising:
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a holographic optical element (HOE) device having;
a first element having first and second surfaces, the first surface being positionable to face incident light rays, an emulsion material disposed over the second surface of the first element and having a recorded interference pattern thereon, and a second element having a first surface disposed over the emulsion material, the second element being structured to pass resulting light rays, derived from the incident light rays diffracted by the recorded interference pattern, in a direction towards a location facing a second surface of the second element;
an optical processing unit to receive the resulting light rays passed by the second element; and
a transmitter unit disposed at least in part behind the second surface of the second element, the transmitter unit comprising an optical fiber capable to provide a light signal, a first and a second optical element to expand the light signal provided by the optical fiber, a third optical element to control divergence of the expanded light signal, and a fourth optical element to collimate light that exits from the transmitter unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus, comprising:
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a holographic optical element (HOE) device disposed in a receiver unit, the HOE device including a recorded interference pattern, the HOE device being positionable to face incident light rays and being capable of passing the incident light rays as resulting light rays diffracted by the recorded interference pattern;
an emulsion material having the interference pattern recorded thereon, wherein the emulsion material is shaped to provide a center obscuration to allow the HOE device to collect the incident light rays into a cone;
an optical processing unit to receive the resulting light rays; and
a plurality of mirrors between the optical processing unit and the HOE device to control a direction of the resulting light rays from the HOE device to the optical processing unit. - View Dependent Claims (8, 9)
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10. An apparatus, comprising:
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a holographic optical element (HOE) device disposed in a receiver unit, the HOE device including an interference pattern recorded on an emulsion material; and
a transmitter unit disposed at least in part behind the HOE device, the emulsion material being shaped to allow transmission of a light signal from the transmitter unit through the HOE device, substantially unaffected by the recorded interference pattern, wherein the transmitter unit comprises;
an optical fiber capable to provide the light signal, a first and a second optical element to expand the light signal provided by the optical fiber, a third optical element to control divergence of the expanded light signal, and a fourth optical element to collimate light that exits from the transmitter unit.
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11. A system, comprising:
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a holographic optical element (HOE) device having;
a first element having first and second surfaces, the first surface being positionable to face incident light rays, an emulsion material disposed over the second surface of the first element and having a recorded interference pattern thereon, and a second element having, a first surface disposed over the emulsion material, the second element being structured to pass resulting light rays, derived from the incident light rays diffracted by the recorded interference pattern, in a direction towards a location facing a second surface of the second element;
an optical processing unit to receive the resulting light rays passed by the second element; and
a transmitter unit disposed at least in part behind the second surface of the second element, the transmitter comprising an optical fiber capable to provide a light signal and an optical element to expand, control the divergence of, and collimate the light that exits from the transmitter unit. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A system, comprising:
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a holographic optical element (HOE) device having;
a first element having first and second surfaces, the first surface being positionable to face incident light rays, an emulsion material disposed over the second surface of the first element and having a recorded interference pattern thereon, and a second element;
having a first surface disposed over the emulsion material, the second element being structured to pass resulting light rays, derived from the incident light rays diffracted by the recorded interference pattern, in a direction towards a location facing a second surface of the second element;
an optical processing unit to receive the resulting light rays passed by the second element; and
a plurality of mirrors positionable between the HOE device and the optical processing unit, the plurality of mirrors being capable to reduce an overall focal length of the HOE device by controlling a direction of the resulting light rays passed from the second element of the HOE device. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A system, comprising:
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a holographic optical element (HOE) device having;
a first element having first and second surfaces, the first surface being positionable to face incident light rays, an emulsion material disposed over the second surface of the first element and having a recorded interference pattern thereon, and a second element having a first surface disposed over the emulsion material, the second element being structured to pass resulting light rays, derived from the incident light rays diffracted by the recorded interference pattern, in a direction towards a location facing a second surface of the second element;
an optical processing unit to receive the resulting light rays passed by the second element; and
a steering mirror positionable between the HOE device and the optical processing unit, the steering mirror being capable of substantially keeping the resulting light rays focused towards the optical processing unit in response to movement of the HOE device. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. An apparatus, comprising:
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a holographic optical element (HOE) device disposed in a receiver unit, the HOE device including an interference pattern recorded on an emulsion material; and
a transmitter unit disposed at least in part behind the HOE device, the emulsion material being shaped to allow transmission of a light signal from the transmitter unit through the HOE device, substantially unaffected by the recorded interference pattern, wherein the transmitter unit comprises an optical fiber capable to provide a light signal and an optical element to expand, control the divergence of, and collimate the light that exits from the transmitter unit.
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Specification