High‐power polymer optical fiber amplifier

Tsuyoshi Yamamoto, Kazuhito Fujii, Akihiro Tagaya, Shigehiro Teramoto, Eisuke Nihei, Yasuhiro Koike, Keisuke Sasaki

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Organic dye‐doped polymer optical fiber amplifiers (POFA) are fabricated and their amplification characteristics are investigated. Rhodamine 6G, Rhodamine B, and Perylene Red are used as organic dyes for optical amplification. The amplification of optical signals at 571 nm, 591 nm, and 621 nm wavelengths is confirmed through pumping by the second harmonic of a pulse‐operated Nd: YAG laser. It is shown that very high output powers can be achieved by increasing the caliber of Rhodamine B doped POFA. One‐kW optical signal output (30 dB gain) is obtainable at dye doping of 1 ppm, 500‐μm core radius, and POFA length of 250 mm. The conversion efficiency of such a high output amplifier is 27 percent. The POFAs are advantageous over liquid‐dye lasers because they are easily handled. Multistage POFAs in the form of joint POFAs are proposed as new light source systems and their oscillation characteristics are discussed.

Original languageEnglish
Pages (from-to)36-44
Number of pages9
JournalElectronics and Communications in Japan (Part II: Electronics)
Issue number11
Publication statusPublished - 1995 Nov


  • Polymer optical fiber amplifier
  • dye laser
  • graded index
  • high‐power visible optical amplification

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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