| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress deterioration in optical output waveform caused by pattern effects which may occur in a semiconductor laser. <P>SOLUTION: An optical module has: a semiconductor laser having a P-side electrode and an N-side electrode; and a semiconductor laser driver circuit driving the semiconductor laser so that an optical signal corresponding to a pattern of a digital electric signal transmitted from the semiconductor laser by differential transmission is outputted. The semiconductor laser driver circuit has: a positive electrode side terminal and a negative electrode side terminal for non-inverted data transmitted by differential transmission; and a positive electrode side terminal and a negative electrode side terminal for inverted data transmitted by differential transmission. One terminal for the non-inverted data is electrically connected to one electrode of the semiconductor laser. The other terminal for the non-inverted data, one terminal for the inverted data, and the other terminal for the inverted data are connected to the other electrode of the semiconductor laser respectively. <P>COPYRIGHT: (C)2012,JPO&INPIT |
