Ma, L.
, Slattery, O.
and Tang, X.
(2010),
Ultra Sensitive NIR Spectrometer Based on Frequency Up-conversion Detector, Proceedings of SPIE, Volume 7680: Next-Generation Spectroscopic Technologies III, Orlando, FL, US, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=905095
(Accessed December 14, 2024)
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Ultra Sensitive NIR Spectrometer Based on Frequency Up-conversion Detector
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Abstract
We developed a spectrometer for signals at single photon levels in the near infrared (NIR) region based on a tunable up-conversion detector. This detector uses a 5-cm periodically poled lithium niobate (PPLN) waveguide to convert NIR photons to a shorter wavelength that are then detected by a silicon avalanche photodiode. The sensitivity of this spectrometer is -126 dBm, which is three orders-of-magnitude higher than any commercial optical spectrum analyzer in this wavelength range. Additionally, we use two PPLN waveguides to implement a polarization-independent up-conversion spectrometer, and use it to study a fiber-based quantum communication system.Proceedings Title
Proceedings of SPIE, Volume 7680: Next-Generation Spectroscopic Technologies III
Volume
7680
Conference Dates
April 5, 2010-April 9, 2014
Conference Location
Orlando, FL, US
Conference Title
SPIE Defense, Security, and Sensing
Pub Type
Conferences
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Keywords
frequency up-conversion, single photon detector, optical fiber communication
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Created April 6, 2010, Updated October 12, 2021