| 摘要 |
A method of stabilizing the working point of a predistorter diode of a predistorter for an optical modulator as protection from temperature fluctuations, whereby the predistorter diode is supplied with a temperature-dependent voltage in order to adjust the working point, is characterized by the fact that a reference diode is thermally coupled with the predistorter diode so that the reference diode is supplied with a constant current, whereby it is not supplied with a signal distorted by the predistorter, and the predistorter diode is supplied with a voltage which is proportional to the reference diode.One advantage of the invention is that it is possible to achieve good temperature stability in an easy manner.
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