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Hyperspectral photon-counting optical time domain reflectometry



Anouar Rahmouni, Samprity Saha, Oliver T. Slattery, Thomas Gerrits


Optical time-domain reflectometry (OTDR) is one of the most used techniques for nondestructive characterization of optical fiber links. Although conventional OTDR exhibits good performance in classical network applications, photoncounting OTDR (ν-OTDR) offers a promising way for in-situ optical channel characterization of quantum network fibers where single-photon detectors are present. ν-OTDR has been demonstrated at the telecommunication wavelengths of 1310 and 1550 nm. Here, we present our hyperspectral ν-OTDR measurement covering a wavelength range from 1150 nm to 1800 nm. The results show low attenuation in SMF-28 fiber between 1150 nm and 1700 nm of less than 0.5 dB/km. However, we show that connector loss can worsen significantly for wavelengths greater than 1550 nm.
Proceedings Title
Quantum Communications and Quantum Imaging XX; (2022)
Conference Dates
August 21-26, 2022
Conference Location
San Diego, CA, US
Conference Title
SPIE - Optics and Photonics 2022


Quantum Networks, single-photon OTDR, Optical Time-Domain Reflectometry


Rahmouni, A. , Saha, S. , Slattery, O. and Gerrits, T. (2022), Hyperspectral photon-counting optical time domain reflectometry, Quantum Communications and Quantum Imaging XX; (2022), San Diego, CA, US, [online],, (Accessed April 16, 2024)
Created October 4, 2022, Updated December 26, 2022