Nonlinear endomicroscopy using a double-clad fiber coupler

被引：21

作者：

Bao, Hongchun ^{[1
]}

Ryu, Seon Young ^{[2
]}

Lee, Byeong Ha ^{[3
]}

Tao, Wei ^{[1
]}

Gu, Min ^{[1
]}

机构：

[1] Swinburne Univ Technol, Ctr Microphoton, Fac Engn & Ind Sci, Hawthorn, Vic 3122, Australia

[2] Korea Basic Sci Inst, Div Instrument Dev, Taejon 305333, South Korea

[3] Gwangju Inst Sci & Technol, Dept Informat & Commun, Kwangju 500712, South Korea

来源：

OPTICS LETTERS | 2010年 / 35卷 / 07期

基金：

澳大利亚研究理事会;

关键词：

PHOTONIC CRYSTAL FIBER; FLUORESCENCE SPECTROSCOPY; MU-M; MICROSCOPY; ENDOSCOPY; PROBE; SYSTEM; HEAD;

D O I：

10.1364/OL.35.000995

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A double-clad fiber coupler is developed to be used in two-photon-excited fluorescence endomicroscopy to replace a dichroic mirror and separate the fluorescence signal from the excitation laser beam. With the double-clad fiber coupler, the endomicroscope becomes more compact, easier to be aligned, and more stable in alignment. The double-clad fiber coupler can transmit 62% of the excitation laser beam through the core. The fluorescence collection efficiency of the double-clad fiber coupler is 34%, which is, to the best of our knowledge, the highest fluorescence collection efficiency achieved by couplers used in two-photon-excited fluorescence endomicroscopes. As a result, the contrast of endomicroscopy imaging is enhanced. (C) 2010 Optical Society of America

引用

页码：995 / 997

页数：3

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