Event DetailsEvent Dates: Thursday, October 29, 2015 - 4:00pmSeminar Location: JILA X317Speaker Name(s): Kristan CorwinSpeaker Affiliation(s): JILA Visiting Fellow Associate Professor, Department of Physics, Kansas State University Seminar Type/SubjectScientific Seminar Type: JILA Public SeminarEvent Details & Abstract: The revolutionary technology of hollow-core photonic crystal fibers has made nonlinear optics in gasses possible over a long interaction length at low optical powers. I will discuss the evolution of the photonic microstructured fiber technology to record levels of loss, and its implications for fiber-based lasers and frequency references. We have demonstrated for the first time that gasses contained in these hollow fibers can be made to lase, leading to a new class of hollow-core optical fiber gas laser (HOFGLAS) with potential for high efficiency in the mid-IR, and scaling to longer wavelengths, high optical powers, or operation at low thresholds. We have also created frequency references based on acetylene-filled fibers and examined their performance. Toward an all-fiber comb and reference system, we have directly stabilized an optical frequency comb to an acetylene-filled fiber reference with expected stability, independent of the GPS. We also examine the challenges of sealing the gas inside these cells, and the reduced but acceptable stability of a sealed photonic microcell. Portable optical frequency references are desirable for a wide variety of applications, from telecommunications to remote detection of harmful gasses. Reception at 3:30 pm.