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Mid-IR WGM Microresonators, Microlasers and Fiber Lasers

The unique characteristics of such WGM devices appear to be particularly relevant for mid-infrared (MIR) applications, because of the stronger molecular absorption lines in the MIR, and because of the increasing need for  frequency comb sources in this “molecular fingerprint” region.

We propose and demonstrate a simple and reliable method for fabricating high quality whispering-gallery mode (WGM) optical microresonators in “mid-IR relevant” low-loss ZBLAN glasses. Intrinsic quality factors of 107 have been demonstrated, providing great promise for WGM-based mid-IR devices. Absorption-limited Q-factors of over 3x108 are anticipated over the 2.0 to 3.2 micron MIR wavelength range in ZBLAN microcavities in the foreseeable future.

- Fluoride glass mid-IR microsphere  microresonators (ZBLAN, InF3, AlF3)

-B. Way, R. K. Jain, and M. Hossein-Zadeh, "High-Q Microresonators for Mid-IR Light Sources and Molecular Sensors",  Optics Letters, vol. 37, no. 21, pp. 4389-4391, 2012.

R. K. Jain, M. Hossein-Zadeh, "Microresonator-based mid-IR sources", Invited presentation, Photonics West 2013, SPIE OPTO "Optical Components and Materials X".

-R. K. Jain, B. Way, M. Klopfer, I. Small, M. Saad, and  M. Hossein-Zadeh,Demonstration of High-Q Microspheres in Indium Fluoride, a  New Mid-IR Glass Host",
IEEE Photonics Conference 2012.ThD5:Nanostructure Material Processes.

-Y. Deng, R. Flores Flores, R. K. Jain, and Mani Hossein-Zadeh
, "Thermo-Optomechanical Oscillations in High-Q ZBLAN Microspheres",
Optics Letters, vol. 38, no. 21, Oct. 2013.

- Mid-IR microlaser based on WGMs in Er:ZBLAN microsphere

-Y. Deng, R. K. Jain, and M. Hossein-Zadeh, "Demonstration of a cw room temperature mid-IR microlaser"Optics Letters, vol. 39, no.15, pp. 4458-4461, Aug. 2014.
-B. Behzadi,  M. Hossein-Zadeh and R. K. Jain., and “ Polarized Wavelength Tunable Narrow-Linewidth emission from a Diode-Pumped Mid-IR MIcrospherical Laser",  OSA's 2016 Laser  Congress, Advanced Solid-State Lasers.
B. Behzadi, R. K. Jain., and M. Hossein-Zadeh, “ Narrow-linewidth mid-infrared coherent sources based on fiber-amplified Er:ZBLAN microspherical lasers"CLEO Conference 2016, Mid-IR Fiber Sources, Th10.5.

- Amplified mid-IR microlaser

- Mid-IR Raman lasers