Cascaded Mach-Zehnder architectures for photonic integrated delay lines

Research output: Contribution to journalArticlepeer-review

Abstract

A continuously tunable integrated optical delay line architecture with large bandwidth and bandwidth-delay product is proposed and demonstrated. The non-resonant delay line is based on cascaded Mach-Zehnder interferometers with tunable couplers. The device is operated with a single control signal and outperforms the common ring-resonator-based delay lines in terms of bandwidth-delay product. A device with a delay tuning range of 124 ps is experimentally demonstrated over a transmission bandwidth of 4.5 GHz.

Original languageEnglish
Article number8438506
Pages (from-to)1830-1833
Number of pages4
JournalIEEE Photonics Technology Letters
Volume30
Issue number21
DOIs
Publication statusPublished - 1 Nov 2018
Externally publishedYes

Keywords

  • integrated optics devices
  • Mach-Zehnder interferometer
  • Optical delay lines
  • optical filter
  • true-time delay

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