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Highly photostable distributed-feedback polymer waveguide blue laser using spirobifluorene derivatives |
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| Authors: | Hirotaka SoHirofumi Watanabe Masayuki YahiroYu Yang Yuji OkiChihaya Adachi |
| Affiliation: | a Graduate School of Information Science and Electrical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan b Institute of Systems, Information Technologies and Nanotechnologies, 2-1-22, Momochihama, Sawara-ku, Fukuoka 814-0001, Japan c Center of Future Chemistry, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan |
| Abstract: | In this study, we synthesized the new spirobifluorene derivatives; hexylbiphenyl-spirobifluorene (HBP-Spiro) and triphenylamine-spirobifluorene (TPA-Spiro) and demonstrated the operation of a distributed-feedback polymer waveguide blue laser. In addition, we investigated the optical and lasing properties of spirobifluorene derivatives including photostability. The experimental slope efficiency and the energy threshold of a HBP-Spiro-doped waveguide laser were 3.6% and 1.9 μJ, respectively. An operation lifetime of 27,000 shots was obtained for a pump-pulse duration of 1.2 ns and energy of 3.0 μJ at a wavelength of 355 nm. |
| Keywords: | Dye lasers Waveguide Distributed-feedback Polymer |
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