METHOD OF MANUFACTURING ARRAY WAVEGUIDE DIFFRACTION GRATING ELEMENT AND ARRAY WAVEGUIDE DIFFRACTION GRATING ELEMENT

摘要

PROBLEM TO BE SOLVED: To realize a method of manufacturing array waveguide diffraction grating element, which can easily realize wavelength compensation and to realize an array waveguide diffraction grating element.;SOLUTION: An array waveguide diffraction grating element 61C comprises three chips of; a first AWG chip 121₁; a second AWG chip 121₂ made to adhere to the fist AWG chip 121₁ through a cut line 63; and a third AWG chip 121₃ made to adhere to the second AWG chip 121₂ through another cut line 102. A plurality of kinds of prepared first AWG chips omitted in Figure are selectively connected to the second AWG chip 121₂, and a plurality of kinds of prepared third AWG chips omitted in Figure are selectively connected to the second AWG chip 121₂. The spectrum shapes in the input side and the output side are selected to be able to give desired characteristics to the array waveguide diffraction grating element.;COPYRIGHT: (C)2004,JPO&NCIPI