Patent ID: 6044097
Filing Date: 2000-03-28
Classification: G02F,H01L,H01S

Abstract:
An optical semiconductor device comprising:a semiconductor laser diode;a power supply including a bias current source for biasing said semiconductor laser diode;an optical modulator for modulating the light output from said semiconductor laser diode in response to an applied modulation signal, said semiconductor laser diode and said optical modulator installed in a package;a resistive element connected to an electrode of said semiconductor laser diode to which a bias current from said bias current source is input to generate light, said resistive element substantially operating as a resistor at least at a high frequency and said resistive element being connected to a capacitive element in series to form a series circuit, said series circuit being connected between a power connection terminal of said package and ground outside said package;common connector means connected to one electrode of said semiconductor laser diode and to one electrode of said optical modulator;at least one of impedance means and signal reflection means connected to said common connection means; andground means connected to at least one of said impedance means and said signal reflection means.