| 摘要 |
<p>A biasing circuit (4) of an electro-absorption modulated laser (1) and a debugging method thereof are provided. The biasing circuit (4) includes a drive circuit (7) and a direct current bias voltage circuit (8). The drive circuit (7) is used for providing forward bias voltage to a laser diode in the electro-absorption modulated laser (1) to generate laser. The direct current bias voltage circuit (8) is connected to a cathode of an electro-absorption modulator in the electro-absorption modulated laser (1), and provides positive direct current bias voltage to the cathode to enable the reverse bias voltage of the electro-absorption modulator to fall in the range of modulation. When the reverse bias voltage falls in the range of modulation, the electro-absorption modulator utilizes the laser generated by the laser diode as an optical carrier wave, modulates the optical carrier wave with the modulation voltage, and outputs a modulated optical signal.</p> |
