Author:
Smith Ruaridh,Wright Lewis,Pandiyan Krish,Morland Imogen,McCarthy Sarah,Anwar Ali,Davidson Noelia Palomar,Gawith Corin,McKnight Loyd J.
Abstract
We present efficient single-photon upconversion detection from SWIR using a precision-machining waveguide fabrication process that offers high power handling and good mode coupling. We demonstrate an internal photon upconversion efficiency of 69%.