4.6 Article

All-optical modulation and detection using a gain medium in a pulse shaper

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OPTICS EXPRESS
卷 28, 期 24, 页码 35869-35883

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OPTICAL SOC AMER
DOI: 10.1364/OE.408472

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  1. Suomen Kulttuurirahasto [00190768]
  2. Academy of Finland [308394]

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We demonstrate all-optical modulation and ultrafast detection using an on-resonance optical gain medium, combined with spectral splitting in a Fourier transform pulse shaper. Multiple spectral channels of one optical beam can be independently modulated in time by another beam, allowing high-rate modulation and multiplexing without requiring ultrafast response from the gain medium. For detection of sub-picosecond signals we demonstrate a method of ultrafast signal detection (temporal imaging with no spatial resolution) that utilizes the spatio-temporal tilt of an optical pulse in a pulse shaper. The proposed methods can find applications in optical information technology and ultrafast imaging. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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