Q-switched, high average output power Tm3+:Ho3+-codoped triple-clad fiber laser for nonlinear frequency conversion

Patrick Forster; Clément Romano; Marc Eichhorn; Christelle Kieleck

doi:10.1117/12.2578104

5 March 2021 Q-switched, high average output power Tm³⁺:Ho³⁺-codoped triple-clad fiber laser for nonlinear frequency conversion

Patrick Forster, Clément Romano, Marc Eichhorn, Christelle Kieleck

Author Affiliations +

Proceedings Volume 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX; 116700E (2021) https://doi.org/10.1117/12.2578104
Event: SPIE LASE, 2021, Online Only

Abstract

We report on current advances in polarization-maintaining (PM) Thulium (Tm³⁺):Holmium (Ho³⁺)-codoped triple-clad fiber (THTF) laser. First fundamental studies were performed in a continuous-wave (CW) regime. A fiber laser with a 7 m active fiber delivered high output powers of up to 180 W for an emission wavelength centered at ~2050 nm. In addition, a setup with a 5 m active fiber was investigated with a slope efficiency of 41.6 % and a close to diffraction limited beam propagation with an M² _x,y < 1:1. Operating in Q-switched regime at a repetition rate of 63 kHz, the pulses of the THTF laser had a pulse width of 45.6 ns and a pulse energy of 760 μJ, resulting in a peak power of 15.7 kW with an average output power of 48 W. With an M² _x,y < 1:2 and a FWHM of 290 pm for the emission spectrum (compared to 54 pm in CW) the fiber laser shows a good basis for efficient frequency conversion.

Conference Presentation

Citation Download Citation

Patrick Forster, Clément Romano, Marc Eichhorn, and Christelle Kieleck "Q-switched, high average output power Tm³⁺:Ho³⁺-codoped triple-clad fiber laser for nonlinear frequency conversion", Proc. SPIE 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX, 116700E (5 March 2021); https://doi.org/10.1117/12.2578104

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