Wavelength-swept fiber laser based on acousto-optic tuning method

Ming-hui Chen; Yun-ping Fan; Hao Zhang; Jian-feng Tao; Gang Zheng

doi:10.1117/12.2245280

31 October 2016 Wavelength-swept fiber laser based on acousto-optic tuning method

Ming-hui Chen, Yun-ping Fan, Hao Zhang, Jian-feng Tao, Gang Zheng

Author Affiliations +

Proceedings Volume 10024, Optics in Health Care and Biomedical Optics VII; 100241Y (2016) https://doi.org/10.1117/12.2245280
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

In this study, we have demonstrated a wavelength-swept fiber laser based on an acousto-optic tunable filter(AOTF) as a selective element and a semiconductor optical amplifier(SOA) as a gain medium in an internal fiber ring cavity. The light deriving from one port of the SOA goes through an optical isolator, the AOTF, a fiber coupler and a polarized controller successively, then it goes back to the other port of the SOA to form a ring cavity. The laser output is from another port of the fiber coupler. The laser made by this method is mainly used for swept-source optical coherence tomography(SS-OCT). The application of the SOA provides a sufficiently broad range and can ensure an increased axial resolution of SS-OCT. AOTF offers a wide tuning range, high switching speed and stable operation against vibration for the non-mechanical structure. The proposed wavelength-swept fiber laser ensures a high axial resolution of tomographic images and has a stable laser output. We have discussed the influence of the SOA injection current to the tuning range of the laser. In the SOA injection current of 280 mA, a continuous wavelength tuning range from 1295 to 1370 nm centered at a wavelength of 1330nm is obtained at the sweep rate of 1.06 kHz, and the power of the swept source was 1.14 mW. In addition, for quantitative characterization of the wavelength-swept performance with a AOTF, we have theoretically and experimentally analyzed the influence of the following controllable parameters: injection current, output power and sweeping frequency.

Citation Download Citation

Ming-hui Chen, Yun-ping Fan, Hao Zhang, Jian-feng Tao, and Gang Zheng "Wavelength-swept fiber laser based on acousto-optic tuning method", Proc. SPIE 10024, Optics in Health Care and Biomedical Optics VII, 100241Y (31 October 2016); https://doi.org/10.1117/12.2245280

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