OPTICAL MODULE

• Main Authors: FUKUMITSU TAKAO, YAMADA TAKASHI, MINO SHINJI, ARATAKE ATSUSHI, KANBARA HIROHISA
• Format: Patent
• Language: English; Japanese
• Published: 07.01.2016
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

PROBLEM TO BE SOLVED: To provide an optical module in which a waveguide type optical element is prevented from varying in a vertical direction even if mechanical vibration and impact are applied, and deviation in a height direction caused by thermal expansion is also restrained.SOLUTION: An optical module comprises: a mount 101 with a protrusion; a first waveguide optical element 102 fixed on the protrusion; a second waveguide optical element 103 butt-connected to one end of the first waveguide optical element 102; a lower auxiliary member 105, having a thickness equal to a height of the protrusion of the mount 101, which is fixed on the mount 101 and on which the second waveguide optical element 103 is placed; and two lateral auxiliary members 106A and 106B holding side faces of the second waveguide optical element 103 therebetween. In the lateral auxiliary members 106A and 106B, one or multiple projections P continuing in an optical axis direction of the second waveguide optical element 102 are formed on a surface coming into contact with the second waveguide optical element 102. 【課題】機械的な振動や衝撃が加わっても、導波路型光素子が上下方向に変動しないようにするとともに、熱膨張によって生ずる高さ方向のずれを抑制した光モジュールを提供する。【解決手段】凸部を有するマウント１０１と、凸部に固定された第１の導波路型光素子１０２と、第１の導波路型光素子１０２の一端に突き合わせ接続された第２の導波路型光素子１０３と、マウント１０１に固定され、マウント１０１の凸部の高さに等しい厚さを有し、第２の導波路型光素子１０３を載置する下部補助材１０５と、第２の導波路型光素子１０３の側面を挟持する２つの側部補助材１０６Ａ、１０６Ｂとを備え、側部補助材１０６Ａ、１０６Ｂは、第２の導波路型光素子１０２と接する面に、第２の導波路型光素子１０２の光軸方向に連続した１または複数の突起Ｐが形成されている。【選択図】図３