High power linearly polarized narrow linewidth fiber laser

Zhenhua Yu; Changxing Xu; Mingfa Deng; Weina Sun

doi:10.1117/12.2656510

16 December 2022 High power linearly polarized narrow linewidth fiber laser

Zhenhua Yu, Changxing Xu, Mingfa Deng, Weina Sun

Proceedings Volume 12501, Seventeenth National Conference on Laser Technology and Optoelectronics; 1250115 (2022) https://doi.org/10.1117/12.2656510
Event: Seventeenth National Conference on Laser Technology and Optoelectronics, 2022, Shanghai, China

Abstract

Spectral beam combining technology based on diffraction grating is an effective method to obtain tens of thousands of watts or even hundreds of thousands of watts of high-power and high beam quality laser. The high power linearly polarized narrow linewidth fiber laser is an ideal sub-beam source in spectral beam combining systems. Limited by stimulated brillouin scattering and mode instability, the power increase of narrow linewidth lasers has been limited, especially in linear polarization systems. In this paper, we report a high-power line polarized narrow line width fiber laser. The white noise signal (WNS) phase modulation and the pseudo-random binary sequence (PRBS) phase modulation were combined to widen the single-frequency laser line width, and then the three-stages fiber amplifier was used to amplify the narrow-line width laser for power. A high power line polarized narrow line width laser with a center wavelength of 1064nm, a power of 2070W and a 3dB line width of 23GHz was finally obtained. The laser polarization extinction ratio is greater than 14dB.

Citation Download Citation

Zhenhua Yu, Changxing Xu, Mingfa Deng, and Weina Sun "High power linearly polarized narrow linewidth fiber laser", Proc. SPIE 12501, Seventeenth National Conference on Laser Technology and Optoelectronics, 1250115 (16 December 2022); https://doi.org/10.1117/12.2656510

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