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Fundamental sensitivity limit imposed by dark 1/f noise in the low optical signal detection regime

McDowell, Emily J. and Ren, Jian and Yang, Changhuei (2008) Fundamental sensitivity limit imposed by dark 1/f noise in the low optical signal detection regime. Optics Express, 16 (10). pp. 6822-6832. ISSN 1094-4087.

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The impact of dark 1/f noise on fundamental signal sensitivity in direct low optical signal detection is an understudied issue. In this theoretical manuscript, we study the limitations of an idealized detector with a combination of white noise and 1/f noise, operating in detector dark noise limited mode. In contrast to white noise limited detection schemes, for which there is no fundamental minimum signal sensitivity limit, we find that the 1/f noise characteristics, including the noise exponent factor and the relative amplitudes of white and 1/f noise, set a fundamental limit on the minimum signal that such a detector can detect.

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Yang, Changhuei0000-0001-8791-0354
Additional Information:© 2008 Optical Society of America. Received 10 March 2008; revised 9 April 2008; accepted 9 April 2008; published 28 April 2008. The authors thank Kevin McHale and Dr. Hideo Mabuchi for acquiring long dark count traces using their APDs. The authors would also like to thank one of the reviewers for pointing out the expeditious derivation described in Eq. 8. This work was supported by a NSF Career Award, BES-0547657. E.J. McDowell acknowledges support from a NIH Ruth L. Kirschstein NRSA fellowship, EB006694, as well as a NSF Graduate Research Fellowship.
Funding AgencyGrant Number
NIH Predoctoral FellowshipEB006694
NSF Graduate Research FellowshipUNSPECIFIED
Subject Keywords:Low light level; Photodetectors; 1/f noise
Issue or Number:10
Record Number:CaltechAUTHORS:MCDoe08
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11115
Deposited By: Archive Administrator
Deposited On:15 Jul 2008 19:48
Last Modified:09 Mar 2020 13:19

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