| 摘要 |
The invention relates to a circuit arrangement for operating a laser diode, having: a laser driver, to which a differential input signal is applied and which provides a differential output signal comprising a first output signal and a second output signal that is the inverse of the first output signal, which are provided at a first and a second laser driver output; a first laser diode, which is connected to the first laser driver output and to which the first output signal is applied; and a second laser diode, which is connected to the second laser driver output and to which the second output signal is applied. In this case, the load provided at the first laser driver output and the load provided at the second laser driver output are essentially identical. This has the effect that the supply current of the laser driver is essentially constant and, therefore, a high-frequency interference signal that effects an interference emission is not applied to said supply current. Only the light of a laser diode is utilized for information transmission.
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