Highly efficient Yb-free Er-La-Al doped ultra-low Na large mode area single-trench fiber laser

Deepak Jain; Shaiful Alam; Yongmin Jung; Pranabesh Barua; Martin N. Velazquez; Jayanta K. Sahu

doi:10.1117/12.2211336

11 March 2016 Highly efficient Yb-free Er-La-Al doped ultra-low Na large mode area single-trench fiber laser

Deepak Jain, Shaiful Alam, Yongmin Jung, Pranabesh Barua, Martin N. Velazquez, Jayanta K. Sahu

Proceedings Volume 9728, Fiber Lasers XIII: Technology, Systems, and Applications; 97280W (2016) https://doi.org/10.1117/12.2211336
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

We demonstrate a 60μm core diameter single-trench Yb free Er-La-Al doped fiber having 0.038 ultra-low-NA, using conventional MCVD process in conjunction with solution doping process. Numerical simulations ensure an effective single mode, the effective area varies from 1,820μm² to 1,960μm² for different thicknesses of trenches and resonant rings. This fiber has been fabricated with conventional fabrication process, which can dramatically reduce the fabrication cost, hence suitable for mass production. Moreover, all solid structure ensures easy cleaving and splicing. Experimental measurements demonstrate a robust effective single mode operation. Furthermore, this fiber in 4%-4% laser cavity shows a record efficiency of 46% with respect to absorbed power.

Citation Download Citation

Deepak Jain, Shaiful Alam, Yongmin Jung, Pranabesh Barua, Martin N. Velazquez, and Jayanta K. Sahu "Highly efficient Yb-free Er-La-Al doped ultra-low Na large mode area single-trench fiber laser", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 97280W (11 March 2016); https://doi.org/10.1117/12.2211336

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