Journal of the Optical Society of Korea

  • 제9권1호
  • /
  • Pages.1-5
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  • 2005
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Nano-structuring of Transparent Materials by Femtosecond Laser Pulses

  • Sohn, Ik-Bu (Optical Network and Systems Laboratory, Information and Communication University) ;
  • Lee, Man-Seop (Optical Network and Systems Laboratory, Information and Communication University) ;
  • Chung, Jung-Yong (Phoco Co. Ltd.) ;
  • Cho, Sung-Hak (Intelligency＆amp, Precision Machine Dept., KIMM)
  • 투고 : 2005.01.27
  • 발행 : 2005.03.01
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초록

Using tightly focused femtosecond laser pulses, we produce an optical waveguide and optical devices in transparent materials. This technique has the potential to generate not only channel waveguides, but also three-dimensional optical devices. In this paper, an optical splitter and U-grooves, which are used for fiber alignment, are simultaneously fabricated in a fused silica glass using near-IR femtosecond laser pulses. The fiber aligned optical splitter has a low insertion loss, less than 4㏈, including an intrinsic splitting loss of 3㏈ and excess loss due to the passive alignment of a single-mode fiber. Finally, we demonstrate the utility of the femtosecond laser writing technique by fabricating gratings at the surface and inside the silica glass.

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참고문헌

  1. Miura, J. Qiu, H. Inouye, T. Mitsuyu, and K. Hirao, 'Photowritten optical waveguides in various glasses with ultrashort pulse laser,' Appl. Phys. Lett., vol. 71, pp. 3329-3331, 1997 https://doi.org/10.1063/1.120327
  2. K. Hirao and K. Miura, 'Writing waveguides and gratings in silica and related materials by a femtosecond laser,' J. Non-Cryst. Solids., vol. 239, pp. 91-95, 1998 https://doi.org/10.1016/S0022-3093(98)00755-8
  3. K. Kawamura;N. Sarukura;K. Hirao, 'Holographic encoding of fine-pitched micrograting structures in amorphous $Si0^2$ thin films on silicon by a single femtosecond laser pulses,' Appl. Phys. Lett., vol. 78, pp. 1038-1040, 2001 https://doi.org/10.1063/1.1347007
  4. M. Li, M. Ishizuka, X. Liu, Y. Sugimoto, N. Ikeda, and K. Asakawa, 'Nanostructuring in submicron- level waveguides with femtosecond laser pulses,' Opt. Commun., vol. 212, pp. 159-163, 2002 https://doi.org/10.1016/S0030-4018(02)01956-9
  5. D. Grobnic, C. W. Smelser, S. J. Mihilov, R. B. Walker, and P. Lu, 'Fiber Bragg gratings with suppressed cladding modes made in SMF-28 with a femtosecond IR laser and a phase mask,' IEEE Photon. Technol. Lett., vol. 16, pp. 1864-1866, 2004 https://doi.org/10.1109/LPT.2004.831239
  6. Y. Sikorski, A. A. Said, P. Bado, R. Maynard, C. Florea, and D. K. Killinger, 'Optical waveguide amplifier in Nd-doped glass written with near-IR femtosecond laser pulses,' Electron. Lett., vol. 36, pp. 396-398, 2000 https://doi.org/10.1049/el:20000172
  7. A. M. Streltsov and N. F. Borrelli, 'Fabrication and analysis of a directional coupler written in glass by nanojoule femtosecond laser pulses,' Opt. Lett., vol. 26, pp. 42-43, 2001 https://doi.org/10.1364/OL.26.000042
  8. L. Gui, B. Xu, and T. C. Chong, 'Microstructure in Lithium Niobate by use of focused femtosecond laser pulses,' IEEE Photon. Technol. Lett., vol. 16, pp. 1337-1339, 2004 https://doi.org/10.1109/LPT.2004.826112
  9. C. Florea and K. A. Winick, 'Fabrication and charac￢terization of photonic devices directly written in glass using femtosecond laser pulses,' J. Lightwave Technol., vol. 21, pp. 246-253, 2003 https://doi.org/10.1109/JLT.2003.808678
  10. M. Takahashi, T. Ido, and T. Nagara, 'A polymer PLC platform with a fiber-alignment V-groove for a low-cost 10-GbE WDM transmitter,' J. Lightwave Technol., vol. 16, pp. 266-268, 2004 https://doi.org/10.1109/LPT.2003.819406

피인용 문헌

  1. Femtosecond Laser Application to Optical Memory and Microfluidics vol.9, pp.3, 2005, https://doi.org/10.3807/JOSK.2005.9.3.092