Acta Optica Sinica, Volume. 22, Issue 9, 1076(2002)
A Novel Method of Improving the Thermal Stability of LPFG
If a long-period grating is written in the hydrogen-loaded standard SM fiber, using the amplitude mask, the thermal stability will be decreased because of the presence of H 2, which makes it difficulty to fabricate an ideal long-period fiber grating (LPFG). It is pointed out both in aspects of theory and experiment that if the solubility of H 2 in the hydrogen-loaded fiber is lowered and using the technique of uniform UV exposure properly, the thermal stability of LPFG could be improved greatly.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese]. A Novel Method of Improving the Thermal Stability of LPFG[J]. Acta Optica Sinica, 2002, 22(9): 1076