1940 nm all-fiber Q-switched fiber laser

P. Ahmadi; A. Estrada; N. Katta; E. Lim; A. McElroy; T. E. Milner; V. Mokan; M. Underwood

doi:10.1117/12.2252195

22 February 2017 1940 nm all-fiber Q-switched fiber laser

P. Ahmadi, A. Estrada, N. Katta, E. Lim, A. McElroy, T. E. Milner, V. Mokan, M. Underwood

Proceedings Volume 10083, Fiber Lasers XIV: Technology and Systems; 100830G (2017) https://doi.org/10.1117/12.2252195
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

We present development of a nanosecond Q-switched Tm³⁺-doped fiber laser with 16 W average power and 4.4 kW peak power operating at 1940 nm. The laser has a master oscillator power amplifier design, and uses large mode area Tm³⁺-doped fibers as the gain medium. Special techniques are used to splice Tm³⁺-doped fibers to minimize splice loss. The laser design is optimized to reduce non-linear effects, including modulation instability. Pulse width broadening due to high gain is observed and studied in detail. Medical surgery is a field of application where this laser may be able to improve clinical practice. The laser together with scanning galvanometer mirrors is used to cut precisely around small footprint vessels in tissue phantoms without leaving any visible residual thermal damage. These experiments provide proof-of-principle that this laser has promising potential in the laser surgery application space.

Conference Presentation

Citation Download Citation

P. Ahmadi, A. Estrada, N. Katta, E. Lim, A. McElroy, T. E. Milner, V. Mokan, and M. Underwood "1940 nm all-fiber Q-switched fiber laser", Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100830G (22 February 2017); https://doi.org/10.1117/12.2252195

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