MW+ peak power sub-nsec 10-kHz repetition rate polarization-maintaining fiber-amplifiers using tapered Yb-doped fibers

Youming Chen; Frank Kimpel; Jean-Luc Fouron; Shantanu Gupta

doi:10.1117/12.909779

15 February 2012 MW+ peak power sub-nsec 10-kHz repetition rate polarization-maintaining fiber-amplifiers using tapered Yb-doped fibers

Youming Chen, Frank Kimpel, Jean-Luc Fouron, Shantanu Gupta

Author Affiliations +

Proceedings Volume 8237, Fiber Lasers IX: Technology, Systems, and Applications; 82371T (2012) https://doi.org/10.1117/12.909779
Event: SPIE LASE, 2012, San Francisco, California, United States

Abstract

Novel tapered Yb-doped polarization-maintaining (PM) large-mode-area (LMA) fibers were fabricated, with 25/250μm and 40/400μm core/clad at each end, and used in the last stage of a multi-stage Yb-fiber MOPA. The fiber-MOPA is controlled by high-speed FPGA for real-time control of the seed laser diode modulation, electro-optic modulator and acousto-optic modulator. Stable 0.3nsec pulses at 10kHz rate with 0.3mJ pulse energy (1MW peak power) is demonstrated. At 1nsec pulsewidth, scaling to >0.5mJ pulse energy is demonstrated. Polarization extinction ratio of 17dB is obtained with diffraction limited beam quality and excellent (<3%) power stability. Such compact and robust pulsed fiber amplifiers enable next generation of airborne and space lidar transmitters.

Citation Download Citation

Youming Chen, Frank Kimpel, Jean-Luc Fouron, and Shantanu Gupta "MW+ peak power sub-nsec 10-kHz repetition rate polarization-maintaining fiber-amplifiers using tapered Yb-doped fibers", Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 82371T (15 February 2012); https://doi.org/10.1117/12.909779

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