Integrated Interferometers' System for In-situ Real Time Optical Signal Modulation

Photonics Research, Journal Year: 2024, Volume and Issue: 12(9), P. 2018 - 2018

Published: June 21, 2024

Improving the functionality of an optical sensor on a prefabricated platform relies heavily signal conditioning method that actively modulates signals. In this work, we present for active modulation response uses fiber modal interferometers integrated in parallel. Over broad frequency range 1 Hz to kHz, interferometers’ technology allows adjustable amplification, attenuation, and filtering dynamic The suggested is also used enhance real-time fluid flowmeter. order keep tabs different physical fields, approach promotes creation self-conditioning sensing systems.

Language: Английский

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Ultra-sensitive fiber optic ethanol gas sensor based on anisotropic nematic liquid crystal film-embedded cascade Sagnac interferometers

IEEE Sensors Journal, Journal Year: 2024, Volume and Issue: 24(15), P. 23892 - 23900

Published: June 25, 2024

Language: Английский

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Fiber optic relative humidity and temperature sensor with the cascaded Vernier effect based on the C-shaped cavity structure

Optics Express, Journal Year: 2024, Volume and Issue: 32(17), P. 29887 - 29887

Published: July 25, 2024

The water-absorbent sensing film, coated on the surface of traditional optical fiber humidity sensors, often suffers from detachment issues. In this paper, we present what believe to be a new fiber-optic cascaded Fabry-Perot interferometer sensor for detecting relative (RH) and temperature, without need sophisticated instrumentation. structure comprises two sections single-mode fibers C-shaped cavity between them. is created by grinding side hollow-core with optic abrasive paper. Vernier effect arises interaction filled ultraviolet glue (NOA61) subsequent pigtail. exhibits high RH sensitivity 0.248 nm/%RH (35-95%RH) an resolution up 0.08%RH. It also has high-temperature sensitivities -1.091 nm/°C (25 - 65°C). Furthermore, simultaneous measurement temperature achieved establishing dual parameter matrix, sensor's response time recovery are within 300s. Therefore, work provides simple cost-effective manufacturing process proposed features compact size, strong environmental adaptability, significant potential practical applications.

Language: Английский

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Few-mode optical fiber-based flexible pressure feedback tentacle doped with fluorescence temperature pointer

Measurement Science and Technology, Journal Year: 2024, Volume and Issue: 35(11), P. 115104 - 115104

Published: July 29, 2024

Abstract In this paper, a flexible fiber pressure feedback whisker is proposed, which consists of water droplet shaped polydimethylsiloxane (PDMS) elastomer with an embedded balloon few mode fiber. The mechanical sensing performance the device was analyzed and optimized using combination finite element method beam propagation (BPM). built-in cladding corroded few-mode increases sensitivity by more than four times. collection efficiency fluorescence signal improved corrosion. PDMS doped upconversion nanoparticles NaYF 4 :Yb, Er@NaYF in order to achieve temperature measurement intensity ratio technology. interference spectrum can not only real-time accurate detection at different temperatures, but also incorporate fluorescent materials into bionic skin for self-compensation, has potential application value development micro-nano control devices.

Language: Английский

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Ultra-sensitive micro-/nano- fiber enabled flexible sensor for monitoring human temperature

IEEE Sensors Journal, Journal Year: 2024, Volume and Issue: 24(20), P. 32134 - 32139

Published: Aug. 13, 2024

Language: Английский

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