LASER DEVICES

摘要

PURPOSE: A laser device is provided to minimize output intensity difference between first and second laser light sources, by changing a gain curve of an active layer. CONSTITUTION: A 1×2 distributor is arranged on a substrate. The 1x2 distributor includes a stem core, a first branch core and a second branch core. An active layer(110) is connected to the stem core. The active layer generates a light source with plural wavelength. The active layer provides gain. A first diffraction grating(125a) is coupled to the first branch core. A second diffraction grating is coupled to the second branch core. An active layer-micro heater(140a) supplies heat to the active layer. A first and a second micro heater(145a,145b) supply heat to the first and the second diffraction grating respectively.