An all-fiber high-energy cladding-pumped 93 nanosecond Q-switched fiber laser using an Y3+-doped fiber saturable absorber

Sean W. Moore; Brian D. Patterson; Daniel B. Soh; Scott E. Bisson

doi:10.1117/12.2040813

7 March 2014 An all-fiber high-energy cladding-pumped 93 nanosecond Q-switched fiber laser using an Y ³⁺-doped fiber saturable absorber

Sean W. Moore, Brian D. Patterson, Daniel B. Soh, Scott E. Bisson

Author Affiliations +

Proceedings Volume 8961, Fiber Lasers XI: Technology, Systems, and Applications; 896113 (2014) https://doi.org/10.1117/12.2040813
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

We report an all-fiber passively Q-switched laser using a large mode area (LMA) Yb³⁺ -doped fiber claddingpumped at 915 nm and an unpumped single-mode (SM) Yb3⁺-doped fiber as the saturable absorber (SA). The saturable absorber SM fiber and LMA gain fiber were coupled with a fiber taper designed to match the fundamental spatial mode of the LMA fiber and the expanded LP01 mode of the single mode fiber. The amplified spontaneous (ASE) intensity propagating in the single mode SA saturates the absorption before the onset of gain depletion in the pumped fiber, switching the fiber cavity to a high Q-state and producing a pulse. Using this scheme we demonstrate a Q-switched all-fiber oscillator with 32 μJ 93 ns pulses at 1030 nm. The associated peak power is nearly two orders of magnitude larger than that reported in previous experimental studies using a single Yb⁺³saturable absorber fiber. The pulse energy was amplified to 0.230 mJ using an Yb³⁺-doped cladding pumped fiber amplifier fusion spliced to the fiber oscillator, increasing the energy by eight fold while preserving the all-fiber architecture.

Citation Download Citation

Sean W. Moore, Brian D. Patterson, Daniel B. Soh, and Scott E. Bisson "An all-fiber high-energy cladding-pumped 93 nanosecond Q-switched fiber laser using an Y ³⁺-doped fiber saturable absorber", Proc. SPIE 8961, Fiber Lasers XI: Technology, Systems, and Applications, 896113 (7 March 2014); https://doi.org/10.1117/12.2040813

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
4 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Oscillators

Absorption

Fiber Bragg gratings

Fiber lasers

Fiber amplifiers

Fusion energy

Amplifiers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years