| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical module where a temperature rise of an optical element due to wraparound of heat can be suppressed. SOLUTION: A package 2 of an optical transmission module 1 is provided with a stem 3, and a cap 4 fixed to the stem 3. The stem 3 has a metallic base 5, and metallic lead pins 6A to 6D are fixed to the base 5. The lead pins 6A to 6C are fixed to the base 5 by insulating materials 7 in a state where they penetrate through holes formed in the base 5. A seat 8 projected to the tip side of the cap 4 is arranged on the upper face 5b of the base 5, and an LD chip 10 is mounted on the seat 8. A plane-like component mounting part 18 is disposed at the tip of the lead pin 6C, and a driving electronic component 19 driving the LD chip 10 is mounted on the component mounting part 18. Thus, the LD chip 10 and the driving electronic component 19 are thermally separated. COPYRIGHT: (C)2007,JPO&INPIT
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