Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1990-09-12
1993-05-11
Moskowitz, Nelson
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
369107, G02B 610, G02F 101, H04B 1012
Patent
active
052106330
ABSTRACT:
A modulating signal is predistorted to linearize the output of an optical intensity modulator. The modulating signal is split into first and second paths. In the first path, the signal is phase shifted. In the second path, distortion components are introduced. The phase shifted signal from the first path is then combined with the distorted signal from the second path to provide a predistorted signal for use in modulating a light source. The distortion generator can comprise a diode pair coupled with opposite polarities in parallel. Both diodes are forward biased, and the pair is coupled in series with the input signal to provide the desired predistortion.
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General Instrument Corporation
Lipsitz Barry R.
Moskowitz Nelson
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