Polymer optical fiber amplifiers for communication and sensor applications

Takeyuki Kobayashi, Keisuke Sasaki, Yasuhiro Koike, Yoshi Okamoto

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


Organic dyes and rare earth chelates have been chosen and incorporated into the core regions of graded index (GI) polymer optical fibers (POF) as gain media. Since the synthetic polymer shows much better compatibility with organic fluorescent materials and is amenable to high active dopant concentrations, the doped POFs produce high gains in short lengths of fiber. We demonstrated that organic dye-doped polymer optical fiber amplifiers (POFA) cover a wide spectral range in the visible with a best observed gain of 37 dB in a Rhodamine B-doped POFA pumped at 550 nm. Also, with a GI POF doped with europium chelate of hexafluoroacetylacetone in tris form, we observed superfluorescence, evidenced by spectral narrowing and lifetime shortening. The prospect is that the wide choice of organic dyes and rare earth chelates offers optical amplifiers and superfluorescenct sources for a variety of communication and sensor applications.

Original languageEnglish
Pages (from-to)84-91
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1998
EventPolymer Photonic Devices - San Jose, CA, United States
Duration: 1998 Jan 281998 Jan 30


  • Graded index
  • Optical amplification
  • Organic dyes
  • Polymer optical fibers
  • Rare earth chelates
  • Superfluorescence

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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