PROBLEM TO BE SOLVED: To provide an optical transmission module that is high in productivity.SOLUTION: An optical transmission module 1 comprises: an optical element 10 that has a light emission part 11 outputting light of an optical signal an optical fiber 50 that transmits the optical signal a holding member 40 in which a tip part of the optical fiber 50 is inserted into a through-hole 40H with the same inner diameter as an outer diameter of the optical fiber 50 and which is disposed on the optical element 10 and a lens part 30 that is disposed in an opening on the optical element side, of the through-hole 40H of the holding member 40 and converges light.COPYRIGHT: (C)2015,JPO&INPIT【課題】生産性の高い光伝送モジュールを提供する。【解決手段】光伝送モジュール1は、光信号の光を出力する発光部11を有する光素子10と、光信号を伝送する光ファイバ50と、光ファイバ50の外径と同じ内径の貫通孔40Hに光ファイバ50の先端部が挿入された、光素子10の上に配設されている保持部材40と、保持部材40の貫通孔40Hの光素子側の開口に配設されている、光を集光するレンズ部30と、を具備する。【選択図】図2
