Patent ID: 8213478
Filing Date: 2012-07-03
Classification: B82Y,H01S

Abstract:
1. A laser device comprising; a 1×2 splitter disposed on a substrate and having a stem core, a first twig core, and a second twig core; an active layer connected to the stem core, generating lights of a plurality of wavelengths and providing a gain for the lights; a first diffraction grating coupled to the first twig core; a second diffraction grating coupled to the second twig core; an active layer-micro heater supplying heat to the active layer; and a first micro heater and a second micro heater supplying heats to the first and second diffraction gratings, respectively; further comprising a first lower cladding layer between the active layer and the substrate; a first upper cladding layer on the active layer; a gain electrode electrically coupled to the first upper cladding layer; a second lower cladding layer between the 1×2 splitter and the substrate; and a second upper cladding layer on the 1×2 splitter.