Monolithic integration of an all-optical Mach-Zehnder demultiplexer using an asymmetric twin-waveguide structure

P. V. Studenkov, M. R. Gokhale, J. Wei, W. Lin, I. Glesk, P. R. Prucnal, S. R. Forrest

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

We demonstrate monolithic integration of a twin-waveguide Mach-Zehnder terahertz optical asymmetric demultiplexer (MZ-TOAD). The InGaAsP-InP device operates at 1.55 μm wavelength and has two semiconductor optical amplifiers in the asymmetric MZ interferometer configuration with a single control input and a built-in switching delay. A 28-ps full-width at half-maximum (FWHM) switching window with high contrast ratio for a range of control powers is obtained using a counter-propagating optical signal and control pulses.

Original languageEnglish (US)
Pages (from-to)600-602
Number of pages3
JournalIEEE Photonics Technology Letters
Volume13
Issue number6
DOIs
StatePublished - Jun 2001

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Keywords

  • All-optical switching
  • Asymmetric twin-waveguide
  • Mach-Zehnder interferometer
  • Monolithic integration
  • Optical time-division multiplexing
  • Photonic integrated circuits

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