WAVELENGTH SELECTION REFLECTION CIRCUIT AND MULTIWAVELENGTH LIGHT SOURCE

摘要

PROBLEM TO BE SOLVED: To provide a wavelength selection reflection circuit capable of easily forming wavelength selection reflection parts having a desired wavelength without using a phase grating mask and to provide a multiwavelength light source provided with the wavelength selection reflection circuit. SOLUTION: The wavelength selection reflection circuit 100 of a polymer resin is provided with a main line part 112 having an input/output end 114 through which an optical signal is input/output and which is formed on one end of the main line part, optical waveguide 110 having seven sub line parts 116 coupled to the main line part 112 via optical directional coupling circuits 118 and the wavelength selection reflection parts 130 formed on the main line part 112 and the sub line parts 116 and having reflection wavelengths different from each other. Heaters 120 switching whether the optical signal is coupled from the main line part 112 to the sub line parts 116 via the optical directional coupling circuits 118 by heating the optical directional coupling circuits 118 are formed on the wavelength selection reflection circuit 100. COPYRIGHT: (C)2009,JPO&INPIT