Kwang Yong Song

Summary

Affiliation: Chung-Ang University
Country: Korea

Publications

  1. ncbi request reprint All-optical dynamic grating generation based on Brillouin scattering in polarization-maintaining fiber
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul, Korea
    Opt Lett 33:926-8. 2008
  2. ncbi request reprint Effects of Brillouin slow light on intensity-modulated waveforms in optical fibers
    Kwang Yong Song
    Dept of Physics, Chung Ang University, Seoul, Korea
    Opt Express 16:17451-6. 2008
  3. doi request reprint High-resolution Brillouin optical time domain analysis based on Brillouin dynamic grating
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul 156 756, Korea
    Opt Lett 35:52-4. 2010
  4. doi request reprint Intermodal stimulated Brillouin scattering in two-mode fibers
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul 156 756, South Korea
    Opt Lett 38:1805-7. 2013
  5. doi request reprint High-sensitivity optical time-domain reflectometry based on Brillouin dynamic gratings in polarization maintaining fibers
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul 156 756, South Korea
    Opt Express 20:27377-83. 2012
  6. doi request reprint Effects of induced birefringence on Brillouin dynamic gratings in single-mode optical fibers
    Kwang Yong Song
    Department of Physics, Chung Ang University, 84 Heukseok Ro, Dongjak Gu, Seoul 156 756, South Korea
    Opt Lett 37:2229-31. 2012
  7. ncbi request reprint Tunable optical delays based on Brillouin dynamic grating in optical fibers
    Kwang Yong Song
    Dept of Physics, Chung Ang University, Seoul, Korea
    Opt Express 17:10344-9. 2009
  8. doi request reprint Operation of Brillouin dynamic grating in single-mode optical fibers
    Kwang Yong Song
    Department of Physics, Chung Ang University, 221 Heukseok dong, Dongjak Gu, Seoul 156 756, South Korea
    Opt Lett 36:4686-8. 2011
  9. ncbi request reprint Gain-assisted superluminal propagation in tellurite glass fiber based on stimulated Brillouin scattering
    Kwang Yong Song
    Dept of Physics, Chung Ang University, Seoul 156 756, Korea
    Opt Express 16:225-30. 2008
  10. doi request reprint Simplified Brillouin optical time-domain sensor based on direct modulation of a laser diode
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul, Korea
    Opt Express 18:24012-8. 2010

Collaborators

Detail Information

Publications16

  1. ncbi request reprint All-optical dynamic grating generation based on Brillouin scattering in polarization-maintaining fiber
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul, Korea
    Opt Lett 33:926-8. 2008
    ..The center wavelength of the grating is controllable by detuning the writing beams, and the 3 dB bandwidth of approximately 80 MHz is observed with the tunable reflectance of up to 4% in a 30 m PMF...
  2. ncbi request reprint Effects of Brillouin slow light on intensity-modulated waveforms in optical fibers
    Kwang Yong Song
    Dept of Physics, Chung Ang University, Seoul, Korea
    Opt Express 16:17451-6. 2008
    ....
  3. doi request reprint High-resolution Brillouin optical time domain analysis based on Brillouin dynamic grating
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul 156 756, Korea
    Opt Lett 35:52-4. 2010
    ..In experiments, a distributed strain measurement with a 10 cm spatial resolution is demonstrated in a 105 m PMF...
  4. doi request reprint Intermodal stimulated Brillouin scattering in two-mode fibers
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul 156 756, South Korea
    Opt Lett 38:1805-7. 2013
    ..Intermodal SBS between counterpropagating LP(01) and LP(11) modes is observed, and the efficiency is measured to be about 58% of that of the SBS between the LP(01) modes...
  5. doi request reprint High-sensitivity optical time-domain reflectometry based on Brillouin dynamic gratings in polarization maintaining fibers
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul 156 756, South Korea
    Opt Express 20:27377-83. 2012
    ..Distributed measurements of the BDG spectra are presented with 80 cm spatial resolution in 935 m range, showing strain and temperature sensitivities of 1.37 MHz/με and -57.48 MHz/°C, respectively...
  6. doi request reprint Effects of induced birefringence on Brillouin dynamic gratings in single-mode optical fibers
    Kwang Yong Song
    Department of Physics, Chung Ang University, 84 Heukseok Ro, Dongjak Gu, Seoul 156 756, South Korea
    Opt Lett 37:2229-31. 2012
    ..Meanwhile, the spectrum is almost immune to circular birefringence induced by twist with a rate of up to 24  turns/m...
  7. ncbi request reprint Tunable optical delays based on Brillouin dynamic grating in optical fibers
    Kwang Yong Song
    Dept of Physics, Chung Ang University, Seoul, Korea
    Opt Express 17:10344-9. 2009
    ..Tunable time delays of up to 132 ns are achieved with an 82 ns Gaussian pulse...
  8. doi request reprint Operation of Brillouin dynamic grating in single-mode optical fibers
    Kwang Yong Song
    Department of Physics, Chung Ang University, 221 Heukseok dong, Dongjak Gu, Seoul 156 756, South Korea
    Opt Lett 36:4686-8. 2011
    ..When a 100 m single-mode fiber is used, a reflectance of 8% with a spectral bandwidth as low as 2.4 MHz is achieved, which is less than 10% of ordinary Brillouin gain bandwidth...
  9. ncbi request reprint Gain-assisted superluminal propagation in tellurite glass fiber based on stimulated Brillouin scattering
    Kwang Yong Song
    Dept of Physics, Chung Ang University, Seoul 156 756, Korea
    Opt Express 16:225-30. 2008
    ..19 is achieved with 6.9 dB amplification in 34 ns Gaussian pulses, leading to the group index of 0.84...
  10. doi request reprint Simplified Brillouin optical time-domain sensor based on direct modulation of a laser diode
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul, Korea
    Opt Express 18:24012-8. 2010
    ..Maps of Brillouin frequency shift are obtained with a spatial resolution of 2 m and an accuracy of ±2 MHz in a 2 km optical fiber...
  11. doi request reprint Observation of narrowband intrinsic spectra of Brillouin dynamic gratings
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul, 156 756 South Korea
    Opt Lett 35:2958-60. 2010
    ..A 3 dB bandwidth as narrow as 10.5 MHz is observed with the Brillouin dynamic grating generated in a 9 m uniform fiber...
  12. ncbi request reprint Optical time-domain measurement of Brillouin dynamic grating spectrum in a polarization-maintaining fiber
    Kwang Yong Song
    Department of Physics, Chung Ang University, Seoul 156 756, Korea
    Opt Lett 34:1381-3. 2009
    ..Large temperature sensitivity as high as -50.9 MHz/ degrees C is observed with 2 m spatial resolution in 100 m range...
  13. doi request reprint High-repetition-rate distributed Brillouin sensor based on optical correlation-domain analysis with differential frequency modulation
    Kwang Yong Song
    Department of Physics, Chung Ang University, 221 Heukseok dong, Dongjak Gu, Seoul 156 756, Korea
    Opt Lett 36:2062-4. 2011
    ..A distribution map of Brillouin frequency variation along a 100 m optical fiber is acquired at a repetition rate of 20 Hz with an accuracy of ±2.5 MHz and a spatial resolution of about 80 cm...
  14. doi request reprint Differential measurement scheme for Brillouin optical correlation domain analysis
    Ji Ho Jeong
    Center for Opto Electronic Convergence Systems, Korea Institute of Science and Technology KIST, Seoul, South Korea
    Opt Express 20:27094-101. 2012
    ..In experiments, a five-fold enhancement in the spatial resolution is obtained compared to an ordinary BOCDA system under the same modulation parameters, as a result of the improved dynamic range by the suppression of background noises...
  15. ncbi request reprint Bidirectional measurement for Brillouin optical correlation domain analysis
    Ji Ho Jeong
    Center for Opto Electronic Convergence Systems, Korea Institute of Science and Technology KIST, Seoul, South Korea
    Opt Express 20:11091-6. 2012
    ....
  16. doi request reprint Variable-frequency lock-in detection for the suppression of beat noise in Brillouin optical correlation domain analysis
    Ji Ho Jeong
    Nanophotonics Center, Korea Institute of Science and Technology KIST, Seoul, Korea
    Opt Express 19:18721-8. 2011
    ....