[1] Yeo T L, Sun T, Grattan K T V. Fibre-optic sensor technologies for humidity and moisture measurement[J]. Sensors and Actuators A: Physical, 144, 280-295(2008).
[2] Kolpakov S A, Gordon N T, Mou C et al. Toward a new generation of photonic humidity sensors[J]. Sensors, 14, 3986-4013(2014).
[3] Zhou J, Fang W, Cao Q et al. Influence of moisturizer and relative humidity on human emissions of fluorescent biological aerosol particles[J]. Indoor Air, 27, 587-598(2017).
[4] Eden M A, Hill R A, Beresford R et al. The influence of inoculum concentration, relative humidity, and temperature on infection of greenhouse tomatoes by Botrytis cinerea[J]. Plant Pathology, 45, 795-806(1996).
[5] Rittersma Z M. Recent achievements in miniaturised humidity sensors: a review of transduction techniques[J]. Sensors and Actuators A: Physical, 96, 196-210(2002).
[6] Wang Y Q, Shen C Y, Lou W M et al. Fiber optic humidity sensor based on the graphene oxide/PVA composite film[J]. Optics Communications, 372, 229-234(2016).
[7] Ascorbe J, Corres J M, Arregui F J et al. Recent developments in fiber optics humidity sensors[J]. Sensors, 17, E893(2017).
[8] Novais S, Ferreira M, Pinto J. Relative humidity fiber sensor based on multimode interferometer coated with agarose-gel[J]. Coatings, 8, 453(2018).
[9] Zhang P, Liu B, Liu Z D et al. Temperature and humidity sensor based on a graphene oxide-coated side-polished fiber Mach-Zehnder interferometer[J]. Acta Optica Sinica, 41, 0306003(2021).
[10] Fan X, Wang Q, Zhou M et al. Humidity sensor based on a graphene oxide-coated few-mode fiber Mach-Zehnder interferometer[J]. Optics Express, 28, 24682-24692(2020).
[11] Zheng Y Z, Dong X Y, Zhao C L et al. Relative humidity sensor based on microfiber loop resonator[J]. Advances in Materials Science and Engineering, 2013, 1-4(2013).
[13] Jiang B Q, Bi Z X, Hao Z et al. Graphene oxide-deposited tilted fiber grating for ultrafast humidity sensing and human breath monitoring[J]. Sensors and Actuators B: Chemical, 293, 336-341(2019).
[14] Chiu Y D, Wu C W, Chiang C C. Tilted fiber Bragg grating sensor with graphene oxide coating for humidity sensing[J]. Sensors, 17, 2129(2017).
[15] Zhao Y, Tong R J, Chen M Q et al. Relative humidity sensor based on hollow core fiber filled with GQDs-PVA[J]. Sensors and Actuators B: Chemical, 284, 96-102(2019).
[16] Liu Y, Deng H C, Yuan L B. A novel polyvinyl alcohol and hypromellose gap-coated humidity sensor based on a Mach-Zehnder interferometer with off-axis spiral deformation[J]. Sensors and Actuators B: Chemical, 284, 323-329(2019).
[17] Sun L P, Yuan Z H, Huang T S et al. Ultrasensitive sensing in air based on Sagnac interferometer working at group birefringence turning point[J]. Optics Express, 27, 29501-29509(2019).
[18] Ke W M, Li Z H, Zhou Z X et al. Reduced graphene oxide-based interferometric fiber-optic humidity sensor[J]. Acta Optica Sinica, 39, 1206007(2019).
[19] Shao M, Sun H N, Zhang R et al. Michelson interferometric humidity sensor based on photonic crystal fiber[J]. Acta Optica Sinica, 40, 2406002(2020).
[20] Liu S, Meng H Y, Deng S Y et al. Fiber humidity sensor based on a graphene-coated core-offset Mach-Zehnder interferometer[J]. IEEE Sensors Letters, 2, 1-4(2018).
[21] Soltanian M R K, Sharbirin A S, Ariannejad M M et al. Variable waist-diameter Mach-Zehnder tapered-fiber interferometer as humidity and temperature sensor[J]. IEEE Sensors Journal, 16, 5987-5992(2016).
[23] Liu Y, Zhou A, Yuan L B. Sensitivity-enhanced humidity sensor based on helix structure-assisted Mach-Zehnder interference[J]. Optics Express, 27, 35609-35620(2019).
[24] Wang Y Q, Shen C Y, Lou W M et al. Fiber optic relative humidity sensor based on the tilted fiber Bragg grating coated with graphene oxide[J]. Applied Physics Letters, 109, 031107(2016).
[25] Gao R, Lu D F, Cheng J et al. Humidity sensor based on power leakage at resonance wavelengths of a hollow core fiber coated with reduced graphene oxide[J]. Sensors and Actuators B: Chemical, 222, 618-624(2016).
[26] Azzuhri S R, Amiri I S, Zulkhairi A S et al. Application of graphene oxide based Microfiber-Knot resonator for relative humidity sensing[J]. Results in Physics, 9, 1572-1577(2018).