Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-03-27
2000-02-15
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359133, 359152, 359153, 359159, 359172, 359180, 359173, H04J 1402, H04B 1004, H04B 1024
Patent
active
060259426
ABSTRACT:
An infrared laser diode wireless local area network for communication between spatially dispersed terminals such as computers which may be located in a single room or in adjacent rooms. The lasers may be tuned to emit at varying frequencies for wavelength multiplexing, or a plurality of lasers each having a different output frequency can be connected with each terminal. A receiver connected to each terminal may similarly detect only a single narrow waveband or may detect a plurality of such wavebands. A transceiver may be employed for signal transmission between separate rooms. High speed data modulation of the carrier waves is provided with MOPA or similar lasers, and broad angular dispersion of the output is achieved by such lasers along with dispersive lenses.
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Pascal Leslie
SDL Inc.
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