PITCH CONVERSION COMPONENT, FIBER ARRAY MODULE, AND LIGHT RECEIVING MODULE

• Main Authors: TERUI HIROSHI, NAKAHARA MOTOHIRO
• Format: Patent
• Language: English; Japanese
• Published: 08.03.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To match a beam of light injected with a pitch of a fiber array with a pitch of a PD array.SOLUTION: A pitch conversion component 7 includes: a wedge plate 78 that transmits incidence light Bthat is incident from a plurality of lenses arranged at a first pitch pinto an input/output face 78A to output it from a second input/output face 78B, and makes an optical path length from the input/output face 78A to the input/output face 78B different for each lens because the input/output face 78B is inclined relative to the input/output face 78A to output it with a second pitch pthat is different from a first pitch pfrom the input/output face 78B; and a spacer 77 in which a plurality of parallel open holes 71 are formed with the second pitch pand fixed onto the input/output face 78.SELECTED DRAWING: Figure 1 【課題】本開示は、ファイバアレイのピッチで入射された光線をＰＤアレイのピッチに整合させることを目的とする。【解決手段】本開示は、第１のピッチｐｉで配列された複数のレンズから入出力面７８Ａに入射された入射光Ｂ７１Ａを透過して第２の入出力面７８Ｂから出射し、入出力面７８Ａに対して入出力面７８Ｂが傾斜していることで入出力面７８Ａから入出力面７８Ｂまでの光路長をレンズごとに異ならせ、入出力面７８Ｂから第１のピッチｐｉとは異なる第２のピッチｐｏで出射するウェッジ板７８と、平行な複数の貫通孔７１が第２のピッチｐｏで形成され、入出力面７８に固着されているスペーサ７７と、を備えるピッチ変換部品７である。【選択図】図１