Polarization squeezing with photonic crystal fibers

Publication: Research - peer-reviewJournal article – Annual report year: 2007

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We report on the generation of polarization squeezing by employing intense, ultrashort light pulses in a single pass method in photonic crystal fibers. We investigated the squeezing behavior near the zero-dispersion wavelength and in the anomalous dispersion regime by using two distinct fibers. We observed a maximal squeezing at 810 nm of -3.3 +/- 0.3 dB with an excess noise of +16.8 +/- 0.3 dB in the anomalous regime. Correcting for linear and interference losses between the polarization modes, this corresponds to -6 +/- 1 dB. The ratio of squeezing to excess noise indicates the creation of a much purer state; this ratio indeed lies an order of magnitude below those squeezing experiments that exploit traditional fibers [1]. We attribute this increased state of purity to increased effective nonlinearity and to the reduction of scattering on acoustic modes in the fiber.
Original languageEnglish
JournalLaser Physics
Volume17
Issue number4
Pages (from-to)559-566
ISSN1054-660X
DOIs
StatePublished - 2007
Peer-reviewedYes
CitationsWeb of Science® Times Cited: 7
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