HE Wan-xun, SHI Wen-kang, YE Ai-lun . Long period fiber grating and its new applications in communication and sensing[J]. Editorial Office of Optics and Precision Engineering, 2001,(2): 104-108
HE Wan-xun, SHI Wen-kang, YE Ai-lun . Long period fiber grating and its new applications in communication and sensing[J]. Editorial Office of Optics and Precision Engineering, 2001,(2): 104-108DOI:
Long period fiber grating(LPFG) is a new kind of optical fiber element. The paper presents its mode coupling mechanism
the fabrication methods as well as its applications. The coupling is between forward propagating core fundamental modes and forward-propagating cladding modes. By transverse exposure
periodical modulation of refractive index is formed along the axis of optical fiber. Ideas about applications of LPFG to band pass filters
optical add/drop multiplexing
optical fiber sources
coupling of fibers
optical fiber polarizers and novel sensing are illustrated. In comparison with other schemes
advantages of the LPFG based devices and an important role of the LPFG in communication and sensing technology are demonstrated in detail.
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references
Vengsarkar A M, Lemaire P J,Judkins J B, et al. Long-period fiber gratings as band-rejection filters[J]. Journal of Lightwave Technology, 1996,14(1):58-65.
Vengsarkar A M, Pedrazzani J R,Judkins J B, et al. Long-period fiber-grating-based gain equalizers[J]. Opt. Lett, 1996,21(5):336-338.
Bhatia V, Vengsarkar A M. Optical fiber long-period grating sensors[J].Opt. Lett, 1996,21(9):692-694.
Kersey A D, Davis M A, Patrick H J, et al. Fiber grating sensors[J]. Journal of Lightwave Technology, 1997,15(8),1442-1463.
Gu X J. Wavelength-division multiplexing isolation fiber filter and light source using cascaded long-period fiber gratings[J]. Opt. Lett, 1998,23(7):509-510.
Ortega B, Dong L, Liu W F, et al. High-performance optical fiber polarizers based on long-period gratings in birefringent optical fibers[J]. IEEE Photonics Technol. Lett, 1997,9(10):1370-1372.
Kurkov A S, Douayb M,Duhem O, et al., Long-period fiber grating as a wavelength selective polarisation element[J]. Electron. Lett, 1997,33(1):616-617.
Duhem O, Douay M. Effect of UV-induced birefringence on long-period-grating coupling characteristics[J]. Electron. Lett, 2000,36(5):416-417.