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arXiv · 0707.0583

Low-loss grating for coupling to a high-finesse cavity

A. Bunkowski·O. Burmeister·P. Beyersdorf·K. Danzmann·R. Schnabel·T. Clausnitzer·E. -B. Kley·A. Tünnermann
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Abstract

A concept for a low loss all-reflective cavity coupler is experimentally demonstrated at a wavelength of 1064 nm. A 1450 nm period dielectric reflection grating with a diffraction efficiency of 0.58 % in the -1st order is used in 2nd order Littrow configuration as a coupler to form a cavity with a finesse of 400. The application of such reflective low-loss cavity couplers in future generations of gravitational-wave detectors as well as some implementation issues are discussed.

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A. Bunkowski, O. Burmeister, P. Beyersdorf, K. Danzmann, R. Schnabel, T. Clausnitzer, E. -B. Kley, A. Tünnermann. 2007-07-04. Low-loss grating for coupling to a high-finesse cavity. https://doi.org/10.1364/ol.29.002342

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