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METHOD FOR EXTRA-HIGH SPEED TRANSFORMATION OF TIME SIGNAL INTO TWO-DIMENSIONAL SPACE SIGNAL

外国特許コード F040000887
整理番号 F040000887
掲載日 2004年12月22日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2000JP001816
国際公開番号 WO 2000/058784
国際出願日 平成12年3月24日(2000.3.24)
国際公開日 平成12年10月5日(2000.10.5)
優先権データ
  • H11-83905 (1999.3.26) JP
発明の名称 (英語) METHOD FOR EXTRA-HIGH SPEED TRANSFORMATION OF TIME SIGNAL INTO TWO-DIMENSIONAL SPACE SIGNAL
発明の概要(英語) A signal light pulse to be transformed into a two-dimensional space signal and a reference extra-short light pulse are directed to a dispersion device (2). One-dimensional frequency light distributions produced by a one-dimensional Fourier transformation lens (5) are made to enter a nonlinear crystal (6) to form a 2nd-harmonic. The light wave distribution produced by subjecting the 2nd-harmonic to time-space transformation through the one-dimensional Fourier transformation lens (9) is filtered by a time-frequency filter (11) provided on the filter surface (102) of a one-dimensional space frequency filtering optical system and transformed into a two-dimensional space signal (13) corresponding to the two-dimensional light distribution which is time-frequency-developed and which represents the relation between the time and frequency of the signal light pulse. Thus, a specific technique of realizing extra-high speed transformation of a signal form from a time signal into a two-dimensional space signal without necessity of active scanning and displaying the 2-dimensional signal in a visible region in a temporally steady state is provided.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • Japan Science And Technology Corporation
  • 発明者(英語)
  • Ichioka,Yoshiki
  • Konishi,Tsuyoshi
国際特許分類(IPC)
指定国 US AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE
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