TWO-COLOR LASER SYSTEM FOR TERAHERTZ FREQUENCY GENERATION AND OPTICAL SENSING CAPABLE OF STABLY OUTPUTTING A LASER BY PERFORMING A LATTICE HAVING TWO DIFFERENT BRAGG WAVELENGTHS AND A SEMICONDUCTOR LASER

摘要

PURPOSE: A two-color laser system for terahertz frequency generation and optical sensing is provided to perform a tuning operation by accurately controlling a reflecting wavelength of a lattice.;CONSTITUTION: Both surfaces of a semiconductor laser(1) are formed by high reflective coating and antireflective coating. An optical waveguide is connected to a side surface antireflective-coated of the semiconductor laser. The optical waveguide provides a path of a light from the semiconductor laser. A lattice part(10) has two different Bragg wavelengths among a plurality of wavelengths delivered through the optical waveguide. The lattice part includes a first lattice and a second lattice(30). The semiconductor laser, the optical waveguide, and the lattice part are integrated in one flat waveguide chip. The first lattice and the second lattice are serially connected.;COPYRIGHT KIPO 2010