In-fiber Mach–Zehnder interferometer formed by large lateral offset fusion splicing for gases refractive index measurement with high sensitivity

Duan, De-Wen; Rao, Yunjiang; Xu, Lai-Cai; Tao, Zhu; Wu, Di; Yao, Jun

doi:10.1016/j.snb.2011.09.048

Cited by 95 publications

(41 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 by a conventional fusion splicer, and the fabrication steps of the taper structure and large lateral offset fusion are same as that described by Li et al and by Duan et al 13,14 Figure 2 shows a microscopic image of the taper structure (top) and the large lateral offset fusion (bottom). The parameters of two tapers are almost the same: a waist diameter of ∼55 μm and a taper length of ∼139 μm.…”

Section: Experiments and Resultsmentioning

confidence: 99%

Single-mode fiber refractive index sensor with large lateral offset fusion splicing between two abrupt tapers

et al. 2012

View full text Add to dashboard Cite

Abstract. We propose a novel refractive index (RI) sensor based on a fiber Mach-Zehnder interferometer formed by large lateral offset fusion splicing between two abrupt tapers. The cladding modes are efficiently excited by transmitted light in the large misalignment junctions. The RI sensitivity of the sensor to surrounding RI change is measured, and the sensitivity of 100 nm∕RIU is obtained, which is three to six times higher than that of fiber structures with only a pair of tapers or two offset junctions. Moreover, the sensor is made by a lowcost fabrication method. Thus, the proposed structure is beneficial to the RI sensing applications.

show abstract

Section: Experiments and Resultsmentioning

confidence: 99%

Single-mode fiber refractive index sensor with large lateral offset fusion splicing between two abrupt tapers

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Various methods to make the MZI sensitive to external perturbation change have been proposed [2][3][4]. Recently, microfibers with the strong evanescent field have been proposed for a variety of applications, such as a microfiber knot resonator [5], a Bragg grating [6], a coil resonator [7], and an optical coupler [8].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of temperature sensitivity of a Mach-Zehnder interferometer based on a polymer-overlaid microfiber

Yoon

Kim

et al. 2015

SPIE Proceedings

View full text Add to dashboard Cite

A simple technique to effectively enhance the temperature sensitivity of the Mach-Zehnder interferometer (MZI) by using a microfiber with low index polymer coating is theoretically and experimentally investigated. We successfully improve the temperature sensitivity of the polymer-overlaid microfiber MZI to be -6.68 nm/ o C around a temperature of 25 o C, which is 13 times higher than that of the microfiber MZI without polymer coating. A linear temperature sensitivity of 10.44 pm -1 / o C was achieved in the spatial frequency domain after Fourier transform.

show abstract

“…Open cavity Fiber Mach-Zehnder interferometer (MZI) whose interference beams propagates along the cavity and the silica fiber separately were proposed for refractive index (RI) measurement [7,8] . In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…[7], the MZI is fabricated by making a microcavity through removing part of the core of a single mode fiber (SMF) near the core-cladding interface with femtosecond laser, and in Ref. [8] the MZI is composed by fusion splicing a short section of SMF between two SMFs with a large lateral offset (62.5 µm). Both of the two structures have extremely high refractive index sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Ultra-high sensitive temperature sensor based on multimode fiber Mach-Zehnder interferometer

et al. 2014

View full text Add to dashboard Cite

We propose an ultra-high sensitive temperature sensor based on multimode fiber (MMF) Mach-Zehnder interferometer (MZI). The multimode fiber MZI is composed of a short section of MMF inserting between another two pieces of MMFs with large lateral offset. The sensing head is packaged in a capillary which is filled with glycerol-water solution. At the offset splice interface, part of the light in the lead-in MMF is coupled into the glycerol-water solution around the sensing MMF and the remainder propagates along the cladding of the sensing MMF. Due to the large thermo-optic coefficient of the glycerol-water solution, the transmission spectrum of the MMF-based MZI shift quickly with temperature variation. Experimental results show that the temperature sensitivity is as high as 8.23 nm/°C.

show abstract

In-fiber Mach–Zehnder interferometer formed by large lateral offset fusion splicing for gases refractive index measurement with high sensitivity

Cited by 95 publications

References 18 publications

Single-mode fiber refractive index sensor with large lateral offset fusion splicing between two abrupt tapers

Single-mode fiber refractive index sensor with large lateral offset fusion splicing between two abrupt tapers

Enhancement of temperature sensitivity of a Mach-Zehnder interferometer based on a polymer-overlaid microfiber

Ultra-high sensitive temperature sensor based on multimode fiber Mach-Zehnder interferometer

Contact Info

Product

Resources

About