"Optical amplifier with world record low noise", 20 Jun 2011, Chalmers University of Technology

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スエーデン Chalmers University of Technologyのプレスリリースです：

"Optical amplifier with world record low noise"
 20 Jun 2011, Chalmers University of Technology
  http://www.chalmers.se/en/news/Pages/Optical-amplifier-with-world-record-low-noise.aspx
.....
  "The researchers at Chalmers University of Technology have, by using
   a so-called phase-sensitive fiber-optic parametric amplifier, PSA,
   reduced the noise figure to 1 dB. In traditional erbium-doped fiber
   amplifiers the noise figure is 3 dB at best, resulting in loss of
   signal integrity. 1 dB is the lowest noise ever reported in any kind
   of amplifier with reasonably large signal gain. This represents
   a breakthrough also because it is implemented in a practical way,
   making it potentially very attractive in various applications
   - most notably in high capacity optical communication systems."


発表論文：
"Towards ultrasensitive optical links enabled by low-noise
 phase-sensitive amplifiers"
 Z. Tong, C. Lundstrom, P.A. Andrekson, ..... , L. Gruner-Nielsen
 Nature Photonics (2011), DOI: 10.1038/nphoton.2011.79
 Received: 06 October 2010, Accepted: 14 April 2011,
 Published online: 05 June 2011
  http://www.nature.com/nphoton/journal/vaop/ncurrent/full/nphoton.2011.79.html
※日本からの研究者も含まれています。


Peter Andrekson, Professor
 Head of the Fibre Optic Communications Research Centre (FORCE)
  http://www.chalmers.se/mc2/force-en/people/peter-andrekson
"Interview with Peter Andrekson, Photonics"
  http://www.chalmers.se/en/research/professors/interview/Pages/interview-with-peter-andrekson-photonics.aspx

"New centre reinforces research into global communication"
 01 Mar 2010, Chalmers University of Technology
  http://www.chalmers.se/en/news/Pages/new-centre-reinforces-research-into-global-communication.aspx

Fibre Optic Communications Research Centre (FORCE)
  http://www.chalmers.se/mc2/force-en


L. Gruner-Nielsen, OFS Danmark
OFS Danmark
  http://www.ofs.dk/
OFS, a Furukawa Company
  http://www.ofsoptics.com/


解説記事：
"New research breakthrough will boost optical networks"
 Jun. 21, 2011, GigaOM
  http://gigaom.com/broadband/new-research-breakthrough-will-boost-optical-networks/