• Title/Summary/Keyword: 광자결정

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Low Loss Fusion Splicing of Photonic Crystal Fiber and Single-Mode Fiber (광자결정 광섬유와 단일모드 광섬유 저손실 융착접속)

  • Ahn, Jin-Soo;Park, Kwang-No;Kim, Gil-Hwan;Lee, Sang-Bae;Lee, Kyung-Shik
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.46 no.7
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    • pp.15-21
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    • 2009

  • We proposed a fusion splicing method for low splicing loss between a single-mode fiber(SMF) and two different photonic crystal fibers(PCFs) such as a photonic bandgap fiber(PBGF) and highly nonlinear photonic crystal fiber(NL-PCF). The splicing loss between the SMF and PBGF is affected by air-hole collapse. Therefore, we optimized fusion splicer and reduced a splicing loss below 1.22 dB. We also inserted a Intra High Numerical Aperture(UHNA) fiber between the SMF and NL-PCF to achieve a splicing loss of below 2.59 dB.

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Effect of Heat-Treatment on the Optical Properties of Self-Assembled SiO2 Photonic Crystals (자기조립을 통해 형성된 실리카 광자결정의 광특성에 미치는 열처리 효과)

  • O, Yong-Taeg;Kim, Myung-Soon;Shin, Dong-Chan
    • Journal of the Korean Ceramic Society
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    • v.42 no.2 s.273
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    • pp.127-131
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    • 2005

  • We examined the effect of low temperature heat-treatment on the optical properties of the photonic crystals self-assembled using a monodispersed spherical $SiO_2$ nanoparticle. When the heat treatment temperature increased, the reflectance peak, which is induced by the photonic band gap, moved to a shorter wavelength direction, and the peak intensity of Fabry-Perot fringes also increased. The highest reflectance peak intensity was obtained in the sample heat-treated at $250\~300^{\circ}C$. The heat-treatment reduced the average particle size and the quantity of defects, and increased the packing density of the photonic crystal.

  • https://doi.org/10.4191/KCERS.2005.42.2.127 인용 PDF KSCI