Dual-wavelength FBG inscribed by femtosecond laser for simultaneous measurement of high temperature and strain-中国期刊网

摘要 AnovelfiberBragggrating(FBG)withtwotransmissiondipsin1310-and1550-nmregionsisproposedandinscribedbyaninfraredfemtosecondlaser.Formedbymulti-photonionization,thistypeofgratingcanwithstandtemperatureashighas800℃whichmakesitsuitableforharshenvironmentsensing.Inaddition,thetemperatureandstrainaffectthesetwodipsindifferentways,whichenablessimultaneousstrainandtemperaturesensing.Thefabrication,spectrumcharacterization,andtemperatureperformanceofthisgratingareintroduced.

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Dual-wavelength FBG inscribed by femtosecond laser for simultaneous measurement of high temperature and strain

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Dual-wavelength FBG inscribed by femtosecond laser for simultaneous measurement of high temperature and strain

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