Pulse-carving technique for suppressing transient state in external wideband FSK modulation

Takahide Sakamoto, Tetsuya Kawanishi, Masayuki Izutsu

Research output: Contribution to journalArticlepeer-review


A novel pulse-carving technique for an externally-modulated wideband frequency-shift-keying (FSK) format is proposed. Synchronous intensity modulation on the FSK signal suppresses undesired transient components generated during the bit transition time. Numerical analysis for the pulse-carving technique employing a Mach-Zehnder modulator driven by a sinusoidal signal indicates that the suppression of the components is typically more than 20 d.

Original languageEnglish
Pages (from-to)244-248
Number of pages5
Journalieice electronics express
Issue number7
Publication statusPublished - 2005 Apr
Externally publishedYes


  • external modulation
  • optical frequency-shift keying
  • pulse carving

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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