| 摘要 |
PURPOSE: A dual band optical coherence tomography system using a broadband optical splitter is provided to obtain an image of a sample about two wavelengths selected in a broad wavelength area at the same time. CONSTITUTION: A dual band optical coherence tomography system using a broadband optical splitter comprises a broadband optical coupler (300), a broadband optical splitter (100), a reference terminal (220), a sample terminal (230), and a detector terminal (240). The broadband optical coupler comprises a first terminal and a second input terminal (310, 320) in which a first light source and a second light source is respective inputted. The broadband optical splitter divides a first coupled light coming into a source terminal (210) into a first divided light and a second divided light. The reference terminal provides a path in which the first divided light passes by combining with one side of the broadband optical splitter, and reflects the first divided light by a reflection mirror (221). The sample terminal provides a path in which the second divided light passes by combining with the other side of the broadband optical splitter, and reflects the second divided light by a sample (231). The detector terminal obtains an image by using a dark fringe of each wavelength divided by a dichroic mirror (241). [Reference numerals] (100) Broadband optical splitter; (300) Broadband optical coupler |
