Dual-Band Time-Multiplexing Swept-Source Optical Coherence Tomography Based on Optical Parametric Amplification

Author

Zhu, Rongwu ; Xu, Jie ; Zhang, Chenghui ; Chan, Aaron C. ; Li, Qifeng ; Chui, P. C. ; Lam, Edmund Y. ; Wong, Kenneth K. Y.

Author_Institution

Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam, Hong Kong

Volume

18

Issue

4

fYear

2012

Firstpage

1287

Lastpage

1292

Abstract

We report a high-speed time-multiplexing dual wavelength band swept laser source based on an optical parametric amplifier. A dual-band swept-source optical coherence tomography (OCT) system is implemented to demonstrate the advantage of a second wavelength band for fast spectroscopic OCT (SOCT). The innovative time-multiplexing architecture greatly reduces the complexity of the coupling and detecting configuration in comparison with the previous dual-band swept-source setup. We demonstrate the optical parametric amplification’s characteristics as a dual-band generator and applied the source to firstly achieve the SOCT around 1550 nm.

Keywords

Coherence; Dual band; Nonlinear optics; Optical buffering; Optical imaging; Tomography; Dual-band source; optical coherence tomography (OCT); optical parametric amplification (OPA); spectroscopic imaging; swept source;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2011.2167132

Filename

6009163