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Control of Hydroxyl Group Content in Sol-Gel-Derived Sols for Waveguide Optical Matrix (Waveguide Optical Matrix 용 졸-겔 코팅졸의 OH 함량 제어)

  • 안복엽;석상일;김주현;권정오
    • Proceedings of the Materials Research Society of Korea Conference
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    • 2003.03a
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    • pp.55-55
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    • 2003

  • Recently, with the rapid development of the waveguide division multiplexing (WDM) systems for large capacity and flexibility of information network, the broad band 1.5$\mu\textrm{m}$ erbium-doped waveguide amplifier (EDWA) become important. The main factors affecting the performance of sol-gel-based waveguides are non-radiative relaxation channels due to rare-earth concentration quenching and to vibration of the OH groups Therefore, the sol-gel process has to be carefully controlled in order to minimize the residual OH content.

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