The fringe visibility measurements on the complex s-plane: A novel method for the fringe visibility measurement

Bonilla, José Trinidad Guillen; Bonilla, Alex Guillen; Zamora, Antonio Casillas; Guillén-Bonilla, Héctor; Betancourtt, Verónica María Rodríguez; Gildo-Ortiz, Lorenzo

doi:10.1016/j.rinp.2022.105586

Cited by 2 publications

(6 citation statements)

References 17 publications

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“…The proposed taper MZI with an asymmetric relation waist length of 10-20 µm had a sinusoidal profile of interference emission with a V = 0.14 and an FSR = 23 nm. These parameters are within the visibility range of 0.1 ≤ V ≤ 1, [1,23]. In this study, an SMF-28 with an LED source was used, and the visibility values obtained were V = 0.14 for the taper MZI and V = 0.3 for the core-offset MZI.…”

Section: Discussionmentioning

confidence: 95%

“…The spectral response shape is a sinusoidal waveform, with the typical interference emission of a relation MZI [1]. The interference patterns are defined by the optical path difference, and its amplitude is a function of the fringe visibility or contrast (𝑉) and is defined based on coherence theory [1,23]: The spatial frequency analysis was similar to an adiabatic [6,17], because the interference pattern of the fabricated asymmetric tapers was mainly formed by the fundamental core mode I 1 and cladding mode I 2 . The asymmetric and symmetric MZIs with waist length relations of [50-60], , and [10-10] µm (see Figure 6a) did not have an interference pattern due to their weak intensity of the cladding modes.…”

Section: Analysis Of Tapered Mzimentioning

confidence: 99%

Section: Analysis Of Tapered Mzimentioning

confidence: 99%

Section: Analysis Of Tapered Mzimentioning

confidence: 99%

“…We obtained a visibility of V = 0.14, a FWHM = 13 nm, and FSR = 23 nm; moreover, for the other waist length relation MZI, the interference was weak or null. This parameter V is very important for optical fiber sensor application [1,23].…”

Section: Analysis Of Tapered Mzimentioning

confidence: 99%

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Experimental Study of White Light Interferometry in Mach–Zehnder Interferometers Based on Standard Single Mode Fiber

Cano-Perez,

Gutiérrez-Gutiérrez,

Perezcampos-Mayoral

et al. 2024

Sensors

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In this work, we experimentally analyzed and demonstrated the performance of an in-line Mach–Zehnder interferometer in the visible region, with an LED light source. The different waist diameter taper and asymmetric core-offset interferometers proposed used a single-mode fiber (SMF). The visibility achieved was V = 0.14 with an FSR of 23 nm for the taper MZI structure and visibilities of V = 0.3, V = 0.27, and V = 0.34 with FSRs of 23 nm, 17 nm, and 8 nm and separation lengths L of 2.5 cm, 4.0 cm, and 5.0 cm between the core-offset structure, respectively. The experimental investigation of the response to the temperature sensor yielded values from 50 °C to 300 °C; the sensitivity obtained was 3.53 a.u./°C, with R2 of 0.99769 and 1% every 1 °C in the transmission. For a range of 50 °C to 150 °C, 20.3 pm/°C with a R2 of 0.96604 was obtained.

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Section: Discussionmentioning

confidence: 95%

Section: Analysis Of Tapered Mzimentioning

confidence: 99%

Section: Analysis Of Tapered Mzimentioning

confidence: 99%

Section: Analysis Of Tapered Mzimentioning

confidence: 99%

Section: Analysis Of Tapered Mzimentioning

confidence: 99%

See 3 more Smart Citations

Experimental Study of White Light Interferometry in Mach–Zehnder Interferometers Based on Standard Single Mode Fiber

Cano-Perez,

Gutiérrez-Gutiérrez,

Perezcampos-Mayoral

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

Experimental Study of White Light Interferometry in Mach-Zehnder Interferometers Based on Standard Single Mode Fiber

Cano-Perez,

Gutierrez-Gutiérrez,

Perezcampos-Mayoral

et al. 2024

Preprint

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The technique of optical interferometry has many applications in various fields of knowledge, including astronomy, optical metrology, biology, and chemistry. The visible interference pattern of a conventional single mode fiber (SMF-28) tapered and core-offset structured in-line Mach-Zehnder interferometer has been demonstrated. The white source is generated by an LED, with a wavelength range of 400 nm to 650 nm emission. We analyze the performance of the interference emission with a waist length of 1.8 mm to 6 mm and with a waist diameter of 10 µm to 60 µm for the tapered structure. The achieved visibility is V=0.14 with an FSR of 23 nm. The core-offset structure interferometer is analyzed with different displacements in x and y axis and with a separation length L of 2.5 cm, 4.0 cm and 5.0 cm between two core joints. The output interference emission has a visibility of V= 0.3, V=0.27 and V=0.34 with an FSR of 23 nm, 17 nm and 8 nm, respectively. The sensitivity obtained from the temperature sensor is of 3.53 a.u./°C, with R2 of 0.99769. The proposed MZIs are low cost and can be used for implementation of sensing system in the field as the industry and medical applications.

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The fringe visibility measurements on the complex s-plane: A novel method for the fringe visibility measurement

Cited by 2 publications

References 17 publications

Experimental Study of White Light Interferometry in Mach–Zehnder Interferometers Based on Standard Single Mode Fiber

Experimental Study of White Light Interferometry in Mach–Zehnder Interferometers Based on Standard Single Mode Fiber

Experimental Study of White Light Interferometry in Mach-Zehnder Interferometers Based on Standard Single Mode Fiber

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