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

Andriy Shevchenko, Markus Nyman*, Matti Kaivola

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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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.
Original languageEnglish
Pages (from-to)35869-35883
Number of pages15
JournalOptics Express
Issue number24
Publication statusPublished - 23 Nov 2020
MoE publication typeA1 Journal article-refereed


  • all-optical modulation
  • ultrafast photonics
  • laser amplifiers


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