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Volume 4, Issue 4 (Suppl) J Laser Opt Photonics, an open access journal
ISSN: 2469-410X Optics 2017
November 15-17, 2017
November 15-17, 2017 | Las Vegas, USA
8th International Conference and Exhibition on
Lasers, Optics & Photonics
Fiber-based sources spanning UV to Mid-IR
Nasser Peyghambarian1,2
1NP Photonics, Inc., USA
2University of Arizona, USA
Phosphate, telluride and fluoride glasses allownew fiber laser frequencies. Nonlinear effects including SecondHarmonic Generation
(SHG), Optical Parametric Oscillators (OPO), Stimulated Raman Scattering (SRS) and Stimulated Brillouin Scattering (SBS)
extend the operating wavelengths. However, some nonlinear effects including SRS in some cases are not desirable as they prevent high
power operation. Our recent advances include: Demonstration of blue laser using Tm-doped fluoride glass; Demonstration of mid-
infrared (mid-IR) frequency comb spanning from 7.5-11.6 µm using difference frequency generation (DFG) in a AgGaS2 crystal with
a compact all-fiber source based on Tm and Er-amplifiers. The power of the mid-IR signal is measured to be 1.55mW and the photon
conversion efficiency is 15%. The pulse duration achieved in the mid-IR range is estimated to be around 80fs, which corresponds to
2.6 optical cycles at 9.2 µm center wavelength. The current approach allows simple power scaling by further amplification of the pump
and signal pulses using established amplifier technologies. Demonstration of Er3+-doped ZBLAN fiber amplifier for Q-switched
pulses at 2.79 µm is reported. Over 24 µJ pulse energy at an average output power of 1.0 W was achieved at a pump power of 9.4 W.
The efficiency of this pulsed laser fiber amplifier is about 10%. Our simulation predicts that over 250 µJ pulses can be achieved with
this fiber amplifier when a 120 W pump is used. Demonstration of mid-IR supercontinuum sources will also be discussed.
Biography
Nasser Peyghambarian is a Professor at the College of Optical Sciences and the Department of Materials Science and Engineering at the University of Arizona (UA), as
well as the Director of the NSF Engineering Research Center for Integrated Access Networks and the UA Chair of Photonics and Lasers. He is a Fellow of the AAAS, OSA,
SPIE, APS and NAI. He has over 600 publications in peer-reviewed journals and more than 700 invited talks, conference proceedings and presentations. He has authored
or co-authored 28 books and book chapters and is the inventor on 38 patents.
Nasser Peyghambarian, J Laser Opt Photonics 2017, 4:4 (Suppl)
DOI: 10.4172/2469-410X-C1-017