Title :
How to distinguish among several photons
Author :
Rehacek, Jaroslav ; Hradil, Zdenek ; Perina, Jan, Jr. ; Haderka, Ondrej
Author_Institution :
Dept. of Opt., Palacky Univ., Olomouc, Czech Republic
Abstract :
The paper describes on the possibility of detecting photons using the proposed setup. Different channels of the setup are adjustable by means of a variable ratio coupler. Photon number distribution may be estimated using the maximum likelihood method. The information obtained may then quantified using the Fisher information. Equivalent efficiency of an ideal photodetector that can be associated with realistic detection is defined.
Keywords :
maximum likelihood estimation; photodetectors; photon counting; quantum communication; Fisher information; maximum likelihood method; photodetector; photon detection; photon number distribution; variable ratio coupler; Analytical models; Detectors; Fasteners; Optical fiber couplers; Optical fiber devices; Optical propagation; Physics; Picture archiving and communication systems; Signal detection; Signal processing;
Conference_Titel :
Quantum Electronics Conference, 2003. EQEC '03. European
Print_ISBN :
0-7803-7733-8
DOI :
10.1109/EQEC.2003.1314201
