GaN light-emitting diodes for up to 5.5-Gb/s short-reach data transmission over SI-POF

Juri Vinogradov, Roman Kruglov, Kai Lun Chi, Jin Wei Shi, Martin Bloos, Sven Loquai, Olaf Ziemann

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

We report a high-speed data transmission over a 1-mm diameter step-index polymer optical fiber (SI-POF) with GaN light-emitting diodes (LEDs) operating at 435 and 475 nm. The modulation bandwidths of the LEDs at 40 mA were 180 and 300 MHz, respectively. A maximum bit rate of 5.5 Gb/s was achieved with a 475-nm GaN LED at -1.8-dBm fiber-coupled power over a 1-m SI-POF employing 4-pulse-amplitude modulation format. Compared with the performance of a high-speed red resonant-cavity LED under the same test setup, the chromatic dispersion reduces the potential of the GaN LED-based system when the transmission distance is longer than 30 m.

Original languageEnglish
Article number6902775
Pages (from-to)2473-2475
Number of pages3
JournalIEEE Photonics Technology Letters
Volume26
Issue number24
DOIs
StatePublished - 15 Dec 2014

Keywords

  • Light-emitting diode (LED)
  • polymer optical fiber (POF)
  • pulse-amplitude modulation (PAM)

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