PROBLEM TO BE SOLVED: To provide an OCT (optical coherence tomography) system suitable for removing noise derived from a light source.SOLUTION: The OCT system includes: the light source a demultiplexing means for demultiplexing emitted light emitted from the light source into object light and reference light an irradiating means for irradiating a subject with the object light demultiplexed by the demultiplexing means an interference signal detecting means for causing interference between the reference light and the object light that has irradiated the subject, to detect an interference light intensity signal an extraction signal detecting means for extracting a part of light transmitted through an optical path between the light source and the interference signal detecting means to detect an extraction signal a signal correcting means for correcting the interference light intensity signal using the detected extraction signal and a tomographic image forming means for processing the corrected interference light intensity signal to form a tomographic image of the subject.COPYRIGHT: (C)2012,JPO&INPIT【課題】光源由来ノイズを除去するのに好適なOCTシステムを提供すること。【解決手段】OCTシステムを、光源と、光源が射出した射出光を物体光と参照光に分波する分波手段と、分波手段が分波した物体光を被写体に照射する照射手段と、被写体を照射した物体光と参照光とを干渉させて干渉光強度信号を検出する干渉信号検出手段と、光源と干渉信号検出手段との間の光路を伝送する光の一部を抽出して抽出信号を検出する抽出信号検出手段と、検出された抽出信号を用いて干渉光強度信号を補正する信号補正手段と、補正された干渉光強度信号を処理して被写体の断層画像を生成する断層画像生成手段から構成する。【選択図】図1
