電気学会論文誌E(センサ・マイクロマシン部門誌)
Online ISSN : 1347-5525
Print ISSN : 1341-8939
ISSN-L : 1341-8939
論文
高速MEMSスキャナを用いた第三世代SS-OCT用波長走査型光源
諫本 圭史戸塚 弘毅酒井 徹鈴木 卓也両澤 淳鄭 昌鎬藤田 博之年吉 洋
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2012 年 132 巻 9 号 p. 254-260

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Optical Coherence Tomography (OCT) is an imaging technology that has stimulated considerable interest in the medical application, because it can noninvasively observe cross section of an object such as retina and skin tissues. Fast Swept Source OCT (SS-OCT) is one of the promising methods thanks to the high-speed frame rate and large S/N ratio comparing with those of the conventional time-domain OCT. Key specifications of OCT are frame rate, resolution and penetration depth of the light. In particular, fast frame rate over 100 kHz is required for the next generation OCT. We have developed a fast swept-source laser using a micro electro mechanical systems (MEMS) optical scanner of 2-degrees of freedom (2-DOF) vibration mechanism and demonstrated the OCT at 140 kHz utilizing bi-directional wavelength sweep.
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© 2012 電気学会
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