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19 May 2000 High-performance polymer optical fiber lasers and amplifiers
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Proceedings Volume 3939, Organic Photonic Materials and Devices II; (2000)
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States
We report on the lasing action of the graded-index polymer optical fibers containing dyes, such as Rhodamine B, Rhodamine 6G, Perylene Orange, and Pyrromethene 567. These dyes have been incorporated into poly(methyl methacrylate- co-2-hydroxythyl methacrylate). These fibers were transversely pumped at 532 nm with a frequency-doubled Q- switched Nd:YAG laser. Slope efficiency of 24 percent and output of 1.2 mJ were obtained with a Rhodamine 6G-doped fiber. A lifetime of 200,000 pulses at 10 Hz was achieved with a Rhodamine B-doped fiber. GI POF containing a Nd- chelate have also been fabricated. The absorption spectrum of the fiber exhbit3ed several strong bands in the visible and IR regions. We have observed IR fluorescence of the Nd3+ ion of the fiber at room temperature when it was pumped with an Ar+-pumped dye laser at 580 nm. The Judd-Ofelt theory was applied to the absorption spectrum of Nd3+ in polymer to determine the Judd-Ofelt parameters. From the theory, various radiative properties, such as transition probability, branching ratio, and emission cross section for various emission levels, have been determined and reported.
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Ken Kuriki, Takeyuki Kobayashi, Nana Imai, Toshihiko Tamura, Akihiro Tagaya, Yasuhiro Koike, and Yoshiyuki Okamoto "High-performance polymer optical fiber lasers and amplifiers", Proc. SPIE 3939, Organic Photonic Materials and Devices II, (19 May 2000);

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