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Gas-filled hollow optical fibers for novel lasers and portable frequency references

Event Details

Event Dates: 

Thursday, October 29, 2015 - 4:00pm

Seminar Location: 

  • JILA X317

Speaker Name(s): 

Kristan Corwin

Speaker Affiliation(s): 

JILA Visiting Fellow Associate Professor, Department of Physics, Kansas State University
Seminar Type/Subject

Scientific Seminar Type: 

  • JILA Public Seminar

Event 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.