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Proceedings Article

Nonlinear processes associated with the amplification of MHz-linewidth laser pulses in single-mode Tm:fiber

[+] Author Affiliations
Alex Sincore, Nathan Bodnar, Joshua Bradford, Ali Abdulfattah, Lawrence Shah, Martin C. Richardson

CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)

Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100830K (March 7, 2017); doi:10.1117/12.2251033
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From Conference Volume 10083

  • Fiber Lasers XIV: Technology and Systems
  • Craig A. Robin; Ingmar Hartl
  • San Francisco, California, United States | January 28, 2017

abstract

This work studies the accumulated nonlinearities when amplifying a narrow linewidth 2053 nm seed in a single mode Tm:fiber amplifier. A <2 MHz linewidth CW diode seed is externally modulated using a fiberized acousto-optic modulator. This enables independent control of repetition rate and pulse duration (>30 ns). The pulses are subsequently amplified and the repetition rate is further reduced using a second acousto-optic modulator. It is well known that spectral degradation occurs in such fibers for peak powers over 100's of watts due to self-phase modulation, four-wave mixing, and stimulated Raman scattering. In addition to enabling a thorough test bed to study such spectral broadening, this system will also enable the investigation of stimulated Brillouin scattering thresholds in the same system. This detailed study of the nonlinearities encountered in 2 μm fiber amplifiers is important in a range of applications from telecommunications to the amplification of ultrashort laser pulses. © (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Alex Sincore ; Nathan Bodnar ; Joshua Bradford ; Ali Abdulfattah ; Lawrence Shah, et al.
" Nonlinear processes associated with the amplification of MHz-linewidth laser pulses in single-mode Tm:fiber ", Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100830K (March 7, 2017); doi:10.1117/12.2251033; http://dx.doi.org/10.1117/12.2251033


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