PROBLEM TO BE SOLVED: To provide an optical interference tomographic imaging apparatus capable of suppressing a coherence revival artifact without limiting an imaging range. SOLUTION: An optical branching element 121 that branches light from a light source 110 into measurement light and reference light, and a measurement optical system 130 that guides measurement light incident from the optical branching element 121 via an optical fiber 152 to an eye E to be inspected. The reference optical system 140 that propagates the reference light incident from the optical branch element 121 via the optical fiber 154, and the return light from the eye E to be examined and the reference optical system 140 that propagate the measurement light that has propagated through the measurement optical system 130. At least one of the first end face on the measurement optical system 130 side of the optical fiber 152 and the second end face on the reference optical system 140 side in the optical fiber 154 is provided with an optical coupling element 123 that superimposes the reference light. One end face has a reflectance of −80 dB or less of light propagating inside the optical fiber 152 or the optical fiber 154 having the end face. [Selection diagram] Fig. 1【課題】撮像可能範囲が制限されることなく、コヒーレンスリバイバルアーチファクトを抑制できる光干渉断層撮像装置を提供する。【解決手段】光源１１０からの光を測定光と参照光とに分岐する光分岐要素１２１と、光分岐要素１２１から光ファイバ１５２を介して入射した測定光を被検眼Ｅに導く測定光学系１３０と、光分岐要素１２１から光ファイバ１５４を介して入射した参照光を伝搬させる参照光学系１４０と、測定光学系１３０を伝搬した測定光の被検眼Ｅからの戻り光と参照光学系１４０を伝搬した参照光とを重畳する光結合要素１２３とを備え、光ファイバ１５２における測定光学系１３０の側の第１の端面及び光ファイバ１５４における参照光学系１４０の側の第２の端面のうちの少なくとも１つの端面は、当該端面を有する光ファイバ１５２または光ファイバ１５４の内部を伝搬する光の反射率が－８０ｄＢ以下である。【選択図】図１
