C
Christina C. C. Willis
Researcher at University of Central Florida
Publications - 33
Citations - 342
Christina C. C. Willis is an academic researcher from University of Central Florida. The author has contributed to research in topics: Fiber laser & Laser. The author has an hindex of 8, co-authored 32 publications receiving 316 citations.
Papers
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Journal ArticleDOI
High-power spectral beam combining of linearly polarized Tm:fiber lasers.
Lawrence Shah,R. Andrew Sims,Pankaj Kadwani,Christina C. C. Willis,Joshua B. Bradford,Alex Sincore,Martin Richardson +6 more
TL;DR: This work investigates power scaling by spectral beam combination of three linearly polarized Tm:fiber MOPA lasers using dielectric mirrors with a steep transition from highly reflective to highly transmissive that enable a minimum wavelength separation of 6 nm between individual laser channels within the wavelength range from 2030 to 2050 nm.
Journal ArticleDOI
Highly polarized all-fiber thulium laser with femtosecond-laser-written fiber Bragg gratings
Christina C. C. Willis,Erik McKee,Pascal Böswetter,Alex Sincore,Jens Thomas,Christian Voigtländer,Ria G. Krämer,Joshua Bradford,Lawrence Shah,Stefan Nolte,Andreas Tünnermann,Martin Richardson +11 more
TL;DR: Thermally-dependent anisotropic birefringence is observed in the FBG transmission, the effects of which enable both the generation and elimination of highly linearly polarized output.
Proceedings ArticleDOI
Atmospheric absorption spectroscopy using Tm: fiber sources around two microns
Pankaj Kadwani,Jeffrey Chia,Faleh AlTal,Robert A. Sims,Christina C. C. Willis,Lawrence Shah,Dennis K. Killinger,Martin Richardson +7 more
TL;DR: In this article, a thulium doped silica fiber ASE source was used for absorption spectroscopy of CO2 and the average spectral power of this source was 2.3-6.1 μW/nm.
Proceedings ArticleDOI
Atmospheric propagation testing with a high power, tunable thulium fiber laser system
Timothy S. McComb,Lawrence Shah,R. Andrew Sims,Christina C. C. Willis,Pankaj Kadwani,Vikas Sudesh,Martin Richardson +6 more
TL;DR: In this paper, a tunable master oscillator power amplifier (MOPA) fiber laser system based on thulium doped silica fiber was demonstrated for investigation of multi-kilometer propagation through atmospheric transmission windows.
Proceedings ArticleDOI
Atmospheric transmission testing using a portable, tunable, high power thulium fiber laser system
Timothy S. McComb,R. Andrew Sims,Christina C. C. Willis,Pankaj Kadwani,Lawrence Shah,Martin Richardson +5 more
TL;DR: In this article, a narrow linewidth thulium fiber laser was tuned from 1945 to 2090 nm to investigate atmospheric transmission at 1 km. Results confirm simulations with high transmission >2025 nm and strong atmospheric absorption <1960 nm.