There is currently broad interest in sources of ultrashort pulses at mid-infrared (3-5 micron) and even long-wave infrared wavelengths. Fiber-based sources of ultrashort pulses potentially offer some performance advantages along with major practical advantages, but also face major challenges. The development of optical fibers that transmit in the mid- and long-wave-infrared enables the design of short-pulse sources at these wavelengths. This talk will focus on sources of coherent femtosecond pulses. The first fiber lasers that directly emit ultrashort pulses around 3 micron wavelength will be reviewed, along with an approach to tunable femtosecond pulses in the 3-6 micron region based on Raman frequency shifting. Thoughts on how to extend the performance to higher energies, broader wavelength coverage, and greater integration will be offered.
Frank W. Wise, "Fiber sources of femtosecond pulses in the mid-infrared (Conference Presentation)," Proc. SPIE 10193, Ultrafast Bandgap Photonics II, 101930T (Presented at SPIE Defense + Security: April 11, 2017; Published: 7 June 2017); https://doi.org/10.1117/12.2261998.5459357368001.
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