High-speed wide tuning range wavelength swept laser around 1310 nm for frequency domain OCT

Minghui Chen; Zhihua Ding; Tong Wu; Lei Xu

doi:10.1117/12.821464

6 March 2009 High-speed wide tuning range wavelength swept laser around 1310 nm for frequency domain OCT

Minghui Chen, Zhihua Ding, Tong Wu, Lei Xu

Proceedings Volume 7280, Seventh International Conference on Photonics and Imaging in Biology and Medicine; 72800A (2009) https://doi.org/10.1117/12.821464
Event: Photonics and Optoelectronics Meetings, 2008, Wuhan, China

Abstract

Optical coherence tomography (OCT) is an emerging cross-sectional imaging technology. It uses broadband light sources to achieve axial image resolutions on a few microns scale. In this paper, the principle of Fourier domain mode-locked (FDML) wavelength swept laser for swept source optical coherence tomography (SS-OCT) is presented and crucial parameters of the laser system are discussed. On analysis of different methods and system configurations, a new configuration of swept laser system is put forward. We theoretically demonstrate a high-speed, broad bandwidth, Fourier domain mode-locked (FDML) wavelength swept laser around 1310 nm for high-resolution frequency domain optical coherence tomography (FD-OCT). The laser has a fiber ring cavity with a semiconductor optical amplifier gain medium. Intra-cavity mode selection is achieved with an in-fiber tunable fiber Fabry-Perot filter. The laser is designed to generate 32 kHz sweeping rate with a tuning range of 165 nm full width, 3 dB sweep range of 91 nm. In SS-OCT applications the swept laser will achieve about 8.3 μm axial resolution in air and 5.9 μm axial resolution in biological tissue. The instantaneous linewidth is 0.103 nm corresponding to a coherence length of several mm, enabling OCT imaging over a large axial range. The swept laser implemented in the FD-OCT system can provide information of biological tissue imaging in real time.

Citation Download Citation

Minghui Chen, Zhihua Ding, Tong Wu, and Lei Xu "High-speed wide tuning range wavelength swept laser around 1310 nm for frequency domain OCT", Proc. SPIE 7280, Seventh International Conference on Photonics and Imaging in Biology and Medicine, 72800A (6 March 2009); https://doi.org/10.1117/12.821464

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Optical coherence tomography

Optical filters

Fiber lasers

Laser resonators

Mode locking

Tunable filters

Laser sources

Show All Keywords

Keywords/Phrases

Search In:

Publication Years