| 摘要 |
An optical transmitting apparatus includes an optical transmitting apparatus comprising a semiconductor laser; an optical filter which passes through the light which is output from the semiconductor laser; a first port that monitors light which is transmitted through the optical filter; a second port that monitors light which is not transmitted through the optical filter; an optical waveguide which includes the optical filter and the ports; an optical waveguide substrate on which the optical waveguide is formed; a temperature controlling element which adjusts the temperature of the optical waveguide substrate; a heater which adjusts the temperature of the semiconductor laser or the optical waveguide which forms the optical filter; wherein the semiconductor laser is formed on the optical waveguide substrate, and the temperature controlling element and the heater adjust the temperature independently.
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