Tunable optical buffer through an analogue to electromagnetically induced transparency in coupled photonic crystal cavities

Changyu Hu, Sebastian A. Schulz, Alexandros A. Liles, Liam O'Faolain

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)
8 Downloads (Pure)

Abstract

Tunable on-chip optical delay has long been a key target for the research community, as it is the enabling technology behind delay lines, signal retiming and other applications vital to optical signal processing. To date, the field has been limited by high optical losses associated with slow light or delay structures. Here, we present a novel tunable delay line, based on a coupled cavity system exhibiting an electromagnetically induced transparency-like transmission spectrum, with record low loss, around 15 dB/ns. By tuning a single cavity, the delay of the complete structure can be tuned over 120 ps, with the maximum delay approaching 300 ps.
Original languageEnglish
Pages (from-to)1827-1832
Number of pages6
JournalACS Photonics
Volume5
Issue number5
Early online date14 Mar 2018
DOIs
Publication statusPublished - 16 May 2018

Keywords

  • Electromagnetically induced transparency
  • Nanophotonics
  • Optical cavities
  • Optical delay lines
  • Photonic crystal
  • Slow light

Fingerprint

Dive into the research topics of 'Tunable optical buffer through an analogue to electromagnetically induced transparency in coupled photonic crystal cavities'. Together they form a unique fingerprint.

Cite this