We introduce a simple approach for a tunable up-conversion detector. This scheme is relevant for both single photon detection or anywhere where low light levels at telecom wavelengths need to be detected with a high degree of temporal resolution or where high count rates are desired. A system combining a periodically poled Lithium niobate waveguide for the nonlinear wavelength conversion and a low jitter Silicon avalanche photodiode are used in conjunction with a tunable pump source. We report more than a ten-fold increase in the detectable bandwidth using this tuning scheme.
@article{arxiv.0807.3399,
title = {Tunable Up-Conversion Photon Detector},
author = {R. T. Thew and H. Zbinden and N. Gisin},
journal= {arXiv preprint arXiv:0807.3399},
year = {2009}
}
Comments
3 pages, 3 figures, Accepted for publication in APL