Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1992-01-31
1994-09-13
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359187, H04J 1400, H04B 1000
Patent
active
053473850
ABSTRACT:
A frequency-multiplex optical transmission apparatus for carrying out frequency-multiplex optical transmission by supplying an analog-frequency-multiplexed RF input signal to a laser diode. In the apparatus, part of the RF input signal taken out by a splitter is detected by a power detector. In response to an output signal of the power detector, an indicator driver causes an indicator to indicate a modulation signal level for the laser diode. The level of the RF input signal is adjustable by an attenuator while observing the indication state of the indicator.
REFERENCES:
patent: 4399566 (1983-08-01), Roullet
patent: 4684248 (1987-08-01), Cinzori
patent: 4796301 (1989-01-01), Uzawa
patent: 4945541 (1990-07-01), Nakayama
patent: 5107362 (1992-04-01), Motoshima
Albin et al, "Design and Operation of High-Frequency Lightwave Sources and Receivers", Hewlett-Packard Journal, vol. 40, No. 3, Jun. 1989, pp. 52-57.
Pascal Leslie
Sumitomo Electric Industries Ltd.
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