A high-sensitive fiber curvature sensor using twin core fiber-based filter

Yin, Guolu; Lou, Shuqin; Lu, Wenliang; Wang, X.

doi:10.1007/s00340-013-5578-z

Cited by 24 publications

(18 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, a 'blue' wavelength shift of the transmission dip is expected when the TCFbased filter is bent. Experimentally, we chose the TCF based-filter with a TCF length of L 0 = 86.9 mm to evaluate the transmission spectral evolution when the TCF was bent [31]. The TCF-based filter was fixed…”

Section: Bending Effectmentioning

confidence: 99%

Tunable Single-, Dual- and Multi-wavelength Fibre Lasers by Using Twin Core Fibre-based Filters

Yin¹,

Wang²,

Lou³

et al. 2016

Fiber Laser

View full text Add to dashboard Cite

Tunable fibre lasers draw intensive attention because their emission wavelength can be systematically tuned within a certain spectral range, which allows using a single laser source instead of several sources. This is convenient and cost-effective for many applications in a range of fields, such as telecom, material processing, microscopy, medicine and imaging and so on. The laser wavelength can be tuned in a certain range of wavelength by inserting wavelength-selective elements into the laser's optical cavity. This chapter describes the twin core fibre (TCF)-based filters, which work as the wavelength-selective element. They are introduced into the ring cavity to implement tunable single-, dual-and multi-wavelength fibre lasers. First, we deduced the coupled-mode theory of TCF-based filter. Second, we experimentally and numerically characterized the optical properties of TCF-based filters including free spectral range, polarization dependence, strain effect and bending effect. Finally, we investigated three tunable fibre lasers which operate at single-, dual-and multi-wavelengths, respectively. The operation mechanism of the fibre lasers mainly involved the elastic-optic effect, polarization hole burning effect and non-linear optical loop mirror. We emphasized the tuning mechanism and the tuning characteristics of the tunable fibre lasers.

show abstract

Section: Bending Effectmentioning

confidence: 99%

Tunable Single-, Dual- and Multi-wavelength Fibre Lasers by Using Twin Core Fibre-based Filters

Yin¹,

Wang²,

Lou³

et al. 2016

Fiber Laser

View full text Add to dashboard Cite

show abstract

“…LPFGs present obvious advantages in the field of bending sensing [1,2], because they own many advantages of wavelength-selective operation, small size, low back-reflection and low insertion loss [3,4]. Several research works of fiber-optic bend sensors based on the fiber gratings [5], twin core fiber (TCF) [6,7], the single-mode-multimode-single-mode (SMS) fiber structure [8], photonic crystal fibers (PCFs) [9,10], and corrugated long period fiber grating structure [11] have been demonstrated. LPFGs have been widely investigated as wavelength-modulated curvature sensors, which give a maximum sensitivity of 14 nm/m À 1 and a range of 0-5 m À 1 [12].…”

Section: Introductionmentioning

confidence: 99%

Femtosecond laser fabrication of long period fiber gratings by a transversal-scanning inscription method and the research of its orientational bending characteristics

Dong

Sun

et al. 2015

Optics & Laser Technology

View full text Add to dashboard Cite

“…Fiber optic sensors have been demonstrated to extremely attractive for various areas of biomedicine, automotive industries and environmental monitoring [1][2][3][4][5][6]. Among them, optical fiber pressure sensors are of great interests owing to their great multiplexing capability, compact size, immunity to electromagnetic interference and easy signal detection.…”

Section: Introductionmentioning

confidence: 99%

Highly-sensitive gas pressure sensor using twin-core fiber based in-line Mach-Zehnder interferometer

et al. 2015

View full text Add to dashboard Cite

A Mach-Zehnder interferometer based on a twin-core fiber was proposed and experimentally demonstrated for gas pressure measurements. The in-line Mach-Zehnder interferometer was fabricated by splicing a short section of twin-core fiber between two single mode fibers. A micro-channel was created to form an interferometer arm by use of a femtosecond laser to drill through one core of the twin-core fiber. The other core of the fiber was remained as the reference arm. Such a Mach-Zehnder interferometer exhibited a high gas pressure sensitivity of -9.6 nm/MPa and a low temperature cross-sensitivity of 4.4 KPa/°C. Moreover, ultra-compact device size and all-fiber configuration make it very suitable for highly-sensitive gas pressure sensing in harsh environments.

show abstract

A high-sensitive fiber curvature sensor using twin core fiber-based filter

Cited by 24 publications

References 13 publications

Tunable Single-, Dual- and Multi-wavelength Fibre Lasers by Using Twin Core Fibre-based Filters

Tunable Single-, Dual- and Multi-wavelength Fibre Lasers by Using Twin Core Fibre-based Filters

Femtosecond laser fabrication of long period fiber gratings by a transversal-scanning inscription method and the research of its orientational bending characteristics

Highly-sensitive gas pressure sensor using twin-core fiber based in-line Mach-Zehnder interferometer

Contact Info

Product

Resources

About