Turn-Around-Point Long-Period Fiber Gratings Fabricated by CO Laser Point-by-Point Irradiations

High order mode long-period fiber gratings (LPFGs) were fabricated for the first time, to our knowledge, by point-by-point CO 2 laser irradiations. With this method, turn-around-point LPFGs working in various circumstances can be easily fabricated by adjusting the inscription period. Effects of fabr...

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Veröffentlicht in:	IEEE photonics technology letters 2011-11, Vol.23 (22), p.1664-1666
Hauptverfasser:	Lan, Xinwei, Han, Qun, Wei, Tao, Huang, Jie, Xiao, Hai
Format:	Artikel
Sprache:	eng
Schlagworte:	Fiber gratings Fiber lasers hbox{CO}_{2} laser high order mode long-period fiber gratings (LPFGs) Laser modes Optical fiber dispersion Optical fiber sensors Optical fibers point-by-point irradiation Temperature sensors turn-around-point
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Beschreibung
Zusammenfassung:	High order mode long-period fiber gratings (LPFGs) were fabricated for the first time, to our knowledge, by point-by-point CO 2 laser irradiations. With this method, turn-around-point LPFGs working in various circumstances can be easily fabricated by adjusting the inscription period. Effects of fabrication parameters on the characteristics of the resulted LPFGs have been studied. Tenth-order LPFGs have been fabricated and demonstrated for temperature sensing.
ISSN:	1041-1135 1941-0174
DOI:	10.1109/LPT.2011.2166256