Portable laser transceiver

Optical communications – Optical communication over freee space – Transceivers

Reexamination Certificate

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Details

C398S118000, C398S130000

Reexamination Certificate

active

07039320

ABSTRACT:
A portable transceiver of one or more signals includes an input, frequency modulation, a splitter and a plurality of lasers in a transmitter module. A receiver module includes a Mangin mirror aligned with an input aperture. A photodiode receives the signal from the mirror for subsequent demodulation. An interference filter is arranged between the mirror and the photodiode. The filter is hemispherical, having a center of curvature at the focal point of the mirror. The transceiver may include a video camera and gyro-stabilizer accessories. A visual siting scope is aligned with the lasers and the receiver. A separate transceiver for ethernet input signals interfaces with a 10/100 ethernet switch and does not employ frequency modulation.

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W.M. Bruno, R. Mangual, and R.F.Zampolin, Diode Laser Spatial Diversity Transmitter, pp.187-194, SPIE vol. 1044 Optomechanical Design of Laser Transmitters and Receivers (1989).

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