Transceiver for a wireless optical telecommunication system
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United States of America Patent
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Mar 15, 2005
Issued Date -
N/A
app pub date -
Oct 16, 2003
filing date -
Jul 28, 2000
priority date (Note) -
Expired
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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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