High resolution OCT imaging using a spectrally broadened femtosecond Nd:glass laser

Author

Hartl, I. ; Hsiung, R. ; Ko, T.H. ; Fujimoto, J.G. ; Birks, T.A. ; Wadsworth, William J.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA

fYear

2002

fDate

24-24 May 2002

Firstpage

474

Abstract

Summary from only given. We demonstrate a new light source for OCT using a compact Nd:glass femtosecond laser spectrally broadened in a tapered single mode fiber. A reflective grating phase delay line permits high speed, broad bandwidth optical delay scanning. High speed and high resolution OCT imaging is achieved with 5 /spl mu/m axial resolution and 90 dB sensitivity. Axial scan speeds of 1 m/s are achieved, sufficient for real time imaging. This laser source is compact and is well suited for high resolution clinical imaging studies.

Keywords

biomedical optical imaging; fibre lasers; laser applications in medicine; neodymium; optical tomography; axial resolution; axial scan speeds; compact Nd:glass femtosecond laser; high resolution clinical imaging; high resolution optical coherence tomography imaging; high speed broad bandwidth optical delay scanning; reflective grating phase delay line; spectrally broadened femtosecond Nd:glass laser; tapered single mode fiber; Bandwidth; Delay lines; Fiber lasers; Gratings; High-resolution imaging; Image resolution; Laser modes; Light sources; Optical imaging; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Long Beach, CA, USA

Print_ISBN

1-55752-706-7

Type

conf

DOI

10.1109/CLEO.2002.1034217

Filename

1034217