Young Geun Han

Summary

Affiliation: Korea Institute of Science and Technology
Country: Korea

Publications

  1. ncbi request reprint Development of a multiwavelength Raman fiber laser based on phase-shifted fiber Bragg gratings for long-distance remote-sensing applications
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, South Korea
    Opt Lett 30:1114-6. 2005
  2. ncbi request reprint Voltage-controllable wavelength-selective optical switching based on multiply cascaded long-period fiber gratings
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, Korea
    Opt Lett 28:2034-6. 2003
  3. ncbi request reprint Wavelength-spacing-tunable multichannel filter incorporating a sampled chirped fiber Bragg grating based on a symmetrical chirp-tuning technique without center wavelength shift
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, Seongbook Gu, Seoul, South Korea
    Opt Lett 31:3571-3. 2006
  4. ncbi request reprint Simultaneous measurement of bending and temperature based on a single sampled chirped fiber Bragg grating embedded on a flexible cantilever beam
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, Seongbook Gu, Seoul, Korea
    Opt Lett 31:2839-41. 2006
  5. ncbi request reprint Tunable optical add-drop multiplexer based on long-period fiber gratings for coarse wavelength division multiplexing systems
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, South Korea
    Opt Lett 31:703-5. 2006
  6. ncbi request reprint Wavelength-spacing tunable multiwavelength erbium-doped fiber laser based on four-wave mixing of dispersion-shifted fiber
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, South Korea
    Opt Lett 31:697-9. 2006
  7. ncbi request reprint Investigation of a multiwavelength raman fiber laser based on few-mode fiber Bragg gratings
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology KIST, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, South Korea
    Opt Lett 30:2200-2. 2005
  8. ncbi request reprint Multiwavelength Raman-fiber-laser-based long-distance remote sensor for simultaneous measurement of strain and temperature
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbook Gu, Seoul 136 791, South Korea
    Opt Lett 30:1282-4. 2005
  9. ncbi request reprint Switchable multiwavelength erbium doped fiber laser based on a nonlinear optical loop mirror incorporating multiple fiber Bragg gratings
    Thi Van Anh Tran
    Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul, 136 791, Korea
    Opt Express 16:1460-5. 2008
  10. ncbi request reprint A self-restorable architecture for bidirectional wavelength-division-multiplexed passive optical network with colorless ONUs
    Kwanil Lee
    Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, Korea
    Opt Express 15:4863-8. 2007

Collaborators

  • Chang Seok Kim
  • J H Lee
  • Kwanil Lee
  • Sang Bae Lee
  • Sunduck Kim
  • Gilhwan Kim
  • Thi Van Anh Tran
  • Hyeong Seok Lee
  • Oh Jang Kwon
  • Kyung S Lee
  • Taiyong Cho
  • Kyujin Hwang
  • Sil Gu Mun
  • Sang Mook Lee
  • Chang Hee Lee

Detail Information

Publications13

  1. ncbi request reprint Development of a multiwavelength Raman fiber laser based on phase-shifted fiber Bragg gratings for long-distance remote-sensing applications
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, South Korea
    Opt Lett 30:1114-6. 2005
    ..The multiwavelength output was stable and the peak fluctuation was less than 0.5 dB. The temperature and strain sensitivities are estimated to be 10.1 pm/degrees C and 7.5 pm/microstrain, respectively...
  2. ncbi request reprint Voltage-controllable wavelength-selective optical switching based on multiply cascaded long-period fiber gratings
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, Korea
    Opt Lett 28:2034-6. 2003
    ..It can be useful for applications in multiwavelength operational signal gating, optical switching devices, routers, and multiplexers in optical communication systems...
  3. ncbi request reprint Wavelength-spacing-tunable multichannel filter incorporating a sampled chirped fiber Bragg grating based on a symmetrical chirp-tuning technique without center wavelength shift
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, Seongbook Gu, Seoul, South Korea
    Opt Lett 31:3571-3. 2006
    ..Based on the proposed technique, we achieve the continuous tunability of the wavelength spacing in a range from 1.51 to 6.11 nm, depending on the bending direction of the cantilever beam...
  4. ncbi request reprint Simultaneous measurement of bending and temperature based on a single sampled chirped fiber Bragg grating embedded on a flexible cantilever beam
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, Seongbook Gu, Seoul, Korea
    Opt Lett 31:2839-41. 2006
    ..Consequently, the proposed scheme allows for discrimination between two effects of bending and temperature...
  5. ncbi request reprint Tunable optical add-drop multiplexer based on long-period fiber gratings for coarse wavelength division multiplexing systems
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, South Korea
    Opt Lett 31:703-5. 2006
    ..The channel isolation is as high as approximately 40 dB. It has several advantages, including a broad tuning range of wavelength in both the S- and C-bands, high channel isolation, no backreflection, and so on...
  6. ncbi request reprint Wavelength-spacing tunable multiwavelength erbium-doped fiber laser based on four-wave mixing of dispersion-shifted fiber
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, South Korea
    Opt Lett 31:697-9. 2006
    ..We can also obtain switchable multiwavelength lasing operation by elimination of the effects of alternate single-fiber Bragg gratings...
  7. ncbi request reprint Investigation of a multiwavelength raman fiber laser based on few-mode fiber Bragg gratings
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology KIST, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, South Korea
    Opt Lett 30:2200-2. 2005
    ..By the thermal tuning method, the lasing wavelength of each channel can be effectively controlled, and the laser's tunability is measured to be 10.5 pm/ degrees C...
  8. ncbi request reprint Multiwavelength Raman-fiber-laser-based long-distance remote sensor for simultaneous measurement of strain and temperature
    Young Geun Han
    Photonics Research Center, Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbook Gu, Seoul 136 791, South Korea
    Opt Lett 30:1282-4. 2005
    ..This allows simultaneous measurement of strain and temperature for long-distance sensing applications of more than 50 km...
  9. ncbi request reprint Switchable multiwavelength erbium doped fiber laser based on a nonlinear optical loop mirror incorporating multiple fiber Bragg gratings
    Thi Van Anh Tran
    Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul, 136 791, Korea
    Opt Express 16:1460-5. 2008
    ..The lasing wavelength can be switched individually by controlling the polarization controller and the cavity loss...
  10. ncbi request reprint A self-restorable architecture for bidirectional wavelength-division-multiplexed passive optical network with colorless ONUs
    Kwanil Lee
    Korea Institute of Science and Technology, 39 1 Hawolgok Dong, Seongbuk gu, Seoul 136 791, Korea
    Opt Express 15:4863-8. 2007
    ..The experimental results show that the restoration can be achieved within 8 ms against the feeder fiber fault and the power penalty introduced by the restoration process is negligible...
  11. ncbi request reprint Strain and temperature sensitivities of an elliptical hollow-core photonic bandgap fiber based on Sagnac interferometer
    Gilhwan Kim
    Photonics Research Lab, Korea Institute of Science and Technology, 39 1 Hawolgok Dong Seongbuk Ku, Seoul 136 791, Republic of Korea
    Opt Express 17:2481-6. 2009
    ..The strain and temperature sensitivities were very much dependent upon the wavelength. Moreover this PBGF-based interferometer can be a good sensor of physical parameters such as strain and temperature...
  12. ncbi request reprint Multiple-element photonic microwave true-time-delay beamforming incorporating a tunable chirped fiber Bragg grating with symmetrical bending technique
    Young Geun Han
    Department of Physics, Hanyang University, Seongdong Gu, Seoul, Korea
    Opt Lett 32:1704-6. 2007
    ..We achieve the tunabilty of the time delay for a microwave signal carried over an optical signal in a range from 1 to 230 ps...
  13. doi request reprint Long distance fiber Bragg grating strain sensor interrogation using a high speed Raman-based Fourier domain mode-locked fiber laser with recycled residual Raman pump
    Sunduck Kim
    Department of Physics and Research Institute for Natural Sciences, Hanyang University, Seongdong Gu, Seoul, South Korea
    Opt Express 21:13402-7. 2013
    ..3 dB at 1550 nm, respectively. The sensitivity of the proposed Raman-based FDML fiber laser to strain is also measured, which are 0.81 pm/╬╝strain in the spectral domain and 0.19 ns/╬╝strain in the time domain, respectively...