| 摘要 |
<p>The gain deterioration of an optical receiver by the dropping of the signal source impedance on the high frequency side is compensated by inserting a frequency characteristic compensating inductor (7) between a light receiving device (1) and a bias power source (5) used therefore. The device (1) is connected to the power source (5) through the inductor (7). The resonance frequency determined by the parasitic capacitance and junction capacitance of the inductor (7) and device (1) is made nearly equal to the upper limit frequency of the frequency band of the optical receiver. Hence the signal source impedance of the device (1) is increased equivalently and the gain deterioration of the optical receiver is compensated.</p> |
