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High-order temporal coherences of chaotic and laser light

Author(s)
Stevens, Martin J.; Baek, Burm; Dauler, Eric A.; Kerman, Andrew J.; Molnar, Richard J.; Hamilton, Scott A.; Berggren, Karl K.; Mirin, Richard P.; Nam, Sae Woo; ... Show more Show less
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Abstract
We demonstrate a new approach to measuring high-order temporal coherences that uses a four-element superconducting nanowire single-photon detector. The four independent, interleaved single-photon-sensitive elements parse a single spatial mode of an optical beam over dimensions smaller than the minimum diffraction-limited spot size. Integrating this device with four-channel time-tagging electronics to generate multi-start, multi-stop histograms enables measurement of temporal coherences up to fourth order for a continuous range of all associated time delays. We observe high-order photon bunching from a chaotic, pseudo-thermal light source, measuring maximum third- and fourth-order coherence values of 5.87 ± 0.17 and 23.1 ± 1.8, respectively, in agreement with the theoretically predicted values of 3! = 6 and 4! = 24. Laser light, by contrast, is confirmed to have coherence values of approximately 1 for second, third and fourth orders at all time delays.
Date issued
2010-01
URI
http://hdl.handle.net/1721.1/60349
Department
Lincoln Laboratory; Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
Optics Express
Publisher
Optical Society of America
Citation
Martin J. Stevens, Burm Baek, Eric A. Dauler, Andrew J. Kerman, Richard J. Molnar, Scott A. Hamilton, Karl K. Berggren, Richard P. Mirin, and Sae Woo Nam, "High-order temporal coherences of
chaotic and laser light," Opt. Express 18, 1430-1437 (2010) © 2010 OSA.
Version: Final published version
ISSN
1094-4087

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