| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical communication device which improves temperature compensation accuracy to a laser diode, and makes the wavelength of the laser diode constant. <P>SOLUTION: The optical communication device includes a compensation signal generation device 26 which generates a compensation signal A10 for compensating the temperature of a laser diode 14 to a predetermined setting temperature based on a monitor signal A8 showing a drive current A6 monitored by a current monitoring device 24 and an external temperature signal A2 showing an external temperature T2, a computing device 28 which generates a difference signal A12 showing the difference ΔT between the compensation temperature which the compensation signal A10 shows and an internal temperature T1 based on the internal temperature signal A4 showing the internal temperature T1 of a light module 4 detected by a temperature sensor 16 and the compensation signal A10, and a drive current generation device 30 which generates the drive current A6 based on the difference signal A12. <P>COPYRIGHT: (C)2008,JPO&INPIT |
