Experimental demonstration of coherent feedback control on optical field squeezing

Sanae Iida, Mitsuyoshi Yukawa, Hidehiro Yonezawa, Naoki Yamamoto, Akira Furusawa

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

Coherent feedback is a non-measurement based, hence a back-action free, method of control for quantum systems. A typical application of this control scheme is squeezing enhancement, a purely non-classical effect in quantum optics. In this technical note we report its first experimental demonstration that well agrees with the theory taking into account time delays and losses in the coherent feedback loop. The results clarify both the benefit and the limitation of coherent feedback control in a practical situation.

Original languageEnglish
Article number6189053
Pages (from-to)2045-2050
Number of pages6
JournalIEEE Transactions on Automatic Control
Volume57
Issue number8
DOIs
Publication statusPublished - 2012 Aug 8

Keywords

  • Coherent feedback control
  • quantum optics
  • squeezing

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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