Efficient Polarized Laser Mirror

R. Magnusson, Z.S. Liu, D. Shin, S. Tibuleac, and P.P. Young, Dept. of Electrical Engin., Univ. of Texas at Arlington, Arlington, TX.

Waveguide-mode resonance effects in thin-film layers can be applied to realize an efficient laser mirror. We have demonstrated the application of a high-efficiency guided-mode resonance (GMR) filter as an output-coupling mirror in a dye laser. This simple two-layer device provides polarized output laser light without the use of laser Brewster windows. The experimental value of the mirror reflectance is ~98% at the resonance peak with corresponding laser transmission of ~2%. Similar experiments with an ~50% reflective corrugated-waveguide mirror have been reported in which parasitic lasing via Fresnel bulk reflections occurred simultaneously due to the low value of the mirror reflectance.

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Efficient Polarized Laser Mirror

R. Magnusson, Z.S. Liu, D. Shin, S. Tibuleac, and P.P. Young, Dept. of Electrical Engin., Univ. of Texas at Arlington, Arlington, TX.

Waveguide-mode resonance effects in thin-film layers can be applied to realize an efficient laser mirror. We have demonstrated the application of a high-efficiency guided-mode resonance (GMR) filter as an output-coupling mirror in a dye laser. This simple two-layer device provides polarized output laser light without the use of laser Brewster windows. The experimental value of the mirror reflectance is ~98% at the resonance peak with corresponding laser transmission of ~2%. Similar experiments with an ~50% reflective corrugated-waveguide mirror have been reported in which parasitic lasing via Fresnel bulk reflections occurred simultaneously due to the low value of the mirror reflectance.

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Publish Date: 01 December 1998


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