| 摘要 |
<P>PROBLEM TO BE SOLVED: To shorten the rise time of an optical output in an EO module. <P>SOLUTION: In the EO module 30 provided with a light emitting element 31 and drive circuits 32, 33 for supplying a bias current and a modulation current to the light emitting element 31, a power supply terminal Vcc of the EO module 30 is connected to an anode terminal of the light emitting element 31, and the anode terminal is connected to a reverse phase output terminal (Tr<SB>22</SB>) of a differential amplifier circuit for supplying the modulation current from the drive circuit. <P>COPYRIGHT: (C)2004,JPO |
