Resonant optical devices for IR lasers

Eric G. Johnson; Yuan Li; Indumathi Raghu Srimathi; Ryan H. Woodward; Menelaos K. Poutous; Aaron J. Pung; Martin Richardson; Lawrence Shah; Ramesh Shori; Robert Magnusson

doi:10.1117/12.2012525

1 April 2013 Resonant optical devices for IR lasers

Eric G. Johnson, Yuan Li, Indumathi Raghu Srimathi, Ryan H. Woodward, Menelaos K. Poutous, Aaron J. Pung, Martin Richardson, Lawrence Shah, Ramesh Shori, Robert Magnusson

Author Affiliations +

Proceedings Volume 8599, Solid State Lasers XXII: Technology and Devices; 85991G (2013) https://doi.org/10.1117/12.2012525
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

This paper highlights recent developments in resonant optical devices for infrared (IR) and mid-infrared (mid- IR) lasers. Sub-wavelength grating based resonant optical filters are introduced and their application in 2 μm thulium fiber laser and amplifier systems has been discussed. The paper focuses on applying such filtering techniques to 2.8 μm mid-IR fiber laser systems. A narrowband mid-IR Guided-Mode Resonance Filter (GMRF) was designed and fabricated using Hafnium(IV) Oxide film/quartz wafer material system. The fabricated GMRF was then integrated into an Erbium (Er)-doped Zr-Ba-La-Al-Na (ZBLAN) fluoride glass fiber laser as a wavelength selective feedback element. The laser operated at 2782 nm with a linewidth less than 2 nm demonstrating the viability of GMRF’s for wavelength selection in the mid-IR. Furthermore, a GMRF of narrower linewidth based on Aluminum Oxide/quartz wafer material system is fabricated and tested in the same setup. The potentials and challenges with GMRFs will be discussed and summarized.

Citation Download Citation

Eric G. Johnson, Yuan Li, Indumathi Raghu Srimathi, Ryan H. Woodward, Menelaos K. Poutous, Aaron J. Pung, Martin Richardson, Lawrence Shah, Ramesh Shori, and Robert Magnusson "Resonant optical devices for IR lasers", Proc. SPIE 8599, Solid State Lasers XXII: Technology and Devices, 85991G (1 April 2013); https://doi.org/10.1117/12.2012525

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