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Optical characterization of ultra-high diffraction efficiency gratings
A. Bunkowski, O. Burmeister, T. Clausnitzer +4
We report on the optical characterization of an ultra-high diffraction efficiency grating in 1st order Littrow configuration. The apparatus used was an optical cavity built from th…
Demonstration of 3-port grating phase relations
A. Bunkowski, O. Burmeister, K. Danzmann +1
We experimentally demonstrate the phase relations of 3-port gratings by investigating 3-port coupled Fabry-Perot cavities. Two different gratings which have the same 1st order diff…
Input-output relations for a 3-port grating coupled Fabry-Perot cavity
A. Bunkowski, O. Burmeister, K. Danzmann +1
We analyze an optical 3-port reflection grating by means of a scattering matrix formalism. Amplitude and phase relations between the 3 ports, i.e. the 3 orders of diffraction are d…
Diffractive Optics for Gravitational Wave Detectors
A. Bunkowski, O. Burmeister, K. Danzmann +4
All-reflective interferometry based on nano-structured diffraction gratings offers new possibilities for gravitational wave detection. We investigate an all-reflective Fabry-Perot…
Three-port beam splitters-combiners for interferometer applications
R. Schnabel, A. Bunkowski, O. Burmeister +1
We derive generic phase and amplitude coupling relations for beam splitters-combiners that couple a single port with three output ports or input ports, respectively. We apply the c…