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9 September 2019 Lasing and supercontinuum generation in single-crystalline fibers
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Single crystal fibers doped with Er or Tm and clad with a sapphire sol-gel were tested for both laser performance and super-continuum generation. Laser performance was explored for multiple sol-gel cladding deposition cycles (0 to 5) in addition to variable concentration (0.25% to 3%). A single sample showed exemplary performance (2% Tm with 3 deposition cycles) achieving 44.5% slope-efficiency. Super-continuum generation was compared in pure and doped fibers of both 150μm and 50μm diameters at five different pump wavelengths with an 80 fs source. Super-continuum was generated covering 1.5 octaves (790 nm pump) and <2.5 octaves (1645 nm pump) with a threshold pulse energy of 0.4 μJ (5 MW peak power).
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ben Eshel, Michael Tripepi, Kent L. Averett, Sean A. McDaniel, Gary Cook, and Carl M. Liebig "Lasing and supercontinuum generation in single-crystalline fibers", Proc. SPIE 11123, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XIII, 111230D (9 September 2019);


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