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WAVELENGTH VARIABLE LASER, WAVELENGTH VARIABLE LASER DEVICE, AND WAVELENGTH VARIABLE LASER CONTROL METHOD
WAVELENGTH VARIABLE LASER, WAVELENGTH VARIABLE LASER DEVICE, AND WAVELENGTH VARIABLE LASER CONTROL METHOD
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机译：波长可变激光，波长可变激光装置以及波长可变激光控制方法
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摘要
PROBLEM TO BE SOLVED: To provide light with a stable optical output in a desired wavelength.;SOLUTION: A wavelength variable laser 100 comprises: a DFB section 2 including a first light waveguide 10a provided with a first diffraction grating 31a; a DBR section 3 optically coupled with the first light waveguide 10a, and including a second light waveguide 10b provided with plural second diffraction gratings 32a in a waveguide direction; and a phase shift section 4 including a third light waveguide 10c optically coupled with the first light waveguide 10a and the second light waveguide 10b, and shifting a phase of light guided through a light waveguide 10. The second diffraction grating 32a includes a diffraction grating formation region 37 whose refraction index varies at a predetermined period, and a diffraction grating phase shift region 36, and has first length.;COPYRIGHT: (C)2014,JPO&INPIT
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