A time-resolved endoscopic sensor for the local measurement of optical coefficients of tissue

Author

Ettori, D. ; Tinet, Eric ; Tualle, J.-M.

fYear

2001

fDate

11-11 May 2001

Firstpage

308

Abstract

Summary form only given. We present a new sensor for the local measurement of tissue optical coefficients. In order to be less sensitive to the heterogeneous surface of the sample, we decided to perform space and time-resolved measurements rather than only space resolved measurements. We have therefore developed a bundle of monomode fibers in order to send and to collect short optical pulses. The incident pulse is generated by a Ti-sapphire mode-locked laser at 800 nm, and is filtered by a 1.5 nm bandwidth dielectric filter in order to limit group velocity dispersion in fiber. The detection is performed with a Hamamatsu M5675 synchroscan streak camera. The whole system allows a time resolution of 5 ps.

Keywords

bio-optics; biological tissues; biomedical equipment; fibre optic sensors; high-speed optical techniques; streak cameras; Monte-Carlo simulation tables; local measurement; mode-locked laser; monomode fibers; short optical pulses; space resolved measurements; synchroscan streak camera; time resolved measurements; time-resolved endoscopic sensor; tissue optical coefficients; Dielectric measurements; Extraterrestrial measurements; Fiber lasers; Optical fiber filters; Optical fiber sensors; Optical filters; Optical pulse generation; Optical pulses; Optical sensors; Performance evaluation;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-662-1

Type

conf

DOI

10.1109/CLEO.2001.947843

Filename

947843