2007/01/01 by Matthieu Legre, Matthieu Legré, Rob Thew +2 · 1 citation
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Optical Sensing Technologies #Photonic and Optical Devices #quant-ph
paper · pdf · doi:10.1364/oe.15.008237
published as Opt. Exp., Vol. 15, No. 13, 8237 (2007) · 6 pages, 4 figures
openalex publication_date 2007/01/01 · arxiv created 2008/02/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We implement a photon-counting Optical Time Domain Reflectometer (OTDR) at 1.55mum which exhibits a high 2-point resolution and a high accuracy. It is based on a low temporal-jitter photon-counting module at 1.55mum. This detector is composed of a periodically poled Lithium niobate (PPLN) waveguide, which provides a wavelength conversion from near infrared to visible light, and a low jitter silicon photon-counting detector. With this apparatus, we obtain centimetre resolution over a measurement range of tens of kilometres.