Journal of the Optical Society of Korea

  • 제7권2호
  • /
  • Pages.97-101
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  • 2003
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Novel Raman Fiber Laser and Fiber-Optic Sensors Using Multi-Channel Fiber Gratings

  • Han, Young-Geun (Photonics Research Center Korea Institute of Science and Technology) ;
  • Kim, Sang-Hyuck (Photonics Research Center Korea Institute of Science and Technology) ;
  • Lee, Sang-Bae (Photonics Research Center Korea Institute of Science and Technology) ;
  • Kim, Chang-Seok (John Hopkins University) ;
  • Kang, Jin-U. (John Hopkins University) ;
  • Paek, Un-Chul (Kwangju Institute of Science and Technology) ;
  • Chung, Young-Joo (Kwangju Institute of Science and Technology)
  • 투고 : 2003.03.28
  • 발행 : 2003.06.01
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초록

The transmission characteristics of multi-channel long period fiber gratings (LPFGs) in terms of the physical parameters like the separation distance, grating length and number of gratings will be discussed. Their transmission characteristics such as channel spacing, number of channels, loss peak depth, and channel bandwidth can be easily controlled by physical parameters. Based on the experimental results, their applications to optical multiwavelength Raman lasers and optical sensors will be investigated. A multiwavelength Raman fiber ring laser with 9 WDM channels with 100 ㎓ spacing and 19 channels with 50 ㎓ spacing using tunable multi-channel LPFGs will be experimentally demonstrated. The fiber-optic sensing applications with high resolution and sensitivity based on multi-channel LPFGs will be also presented.

키워드

참고문헌

  1. A. M. Vengsarkar, P. J. Lemaire, J. B. Judkins, V. Bhatia, T. Erdogan, and J. E. Sipe, “Long-period fiber gratings as band-rejection filters,” in Optical Fiber Communication Conference ' 95, Optical Society of America, USA, PD4-2, 1995.
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  6. A. Bellemare, M. Karasek, M. Rochette, S. LaRochelle, and M. Tetu, “Room temperature multifrequency erbium-doped fiber lasers anchored on the ITU frequency grid,” J. Lightwave Technol., vol. 18, no. 6, pp. 825 - 831, 2000. https://doi.org/10.1109/50.848393
  7. F. Koch, P. C. Reeves-Hall, S. V. Chernikov, and J. R. Taylor, “CW, multiple wavelength, room temperature, Raman fiber ring laser with external 19 channel, 10GHz pulse generation in a single electro-absorption modulator,” in Optical Fiber Communication Conference 2001, Optical Society of America, USA, WDD7, 2001. https://doi.org/10.1109/OFC.2001.928457

피인용 문헌

  1. Mode-locking and Q-switching in multi-wavelength fiber ring laser using low frequency phase modulation vol.19, pp.7, 2011, https://doi.org/10.1364/OE.19.006290
  2. Generation of 1.5 Gbps Pseudo-random Binary Sequence Optical Signals by Using a Gain Switched Fabry-Perot Semiconductor Laser vol.9, pp.3, 2005, https://doi.org/10.3807/JOSK.2005.9.3.103
  3. Linear all-fiber temperature sensor based on macro-bent erbium doped fiber vol.7, pp.10, 2010, https://doi.org/10.1002/lapl.201010054