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Integrated Photonic Technologies for Sensing Applications
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Integrated Photonic Technologies for Sensing Applications

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: closed (20 November 2017) | Viewed by 53428

Special Issue Editor

Dr. Claudio J. Oton

E-Mail Website
Guest Editor
Scuola Superiore Sant’Anna, TeCIP Institute, Via Giuseppe Moruzzi 1, 56127 Pisa, Italy
Interests: optical fiber sensors; integrated optics; nonlinear optics; lasers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Integrated photonic technologies have found many different applications in the photonic industry. In particular, during the rapid development of last decade, the technology is now ready to offer very high quality and a high volume of samples with the potential of a dramatic drop in fabrication costs. Currently, most applications in the market are in the telecom/datacom sector. However, the sensing industry can greatly benefit from this technology. The Internet of things opens up the need for an enormous volume of sensors, many of which will be optical. However, a widespread implementation of these requires very low costs and high volumes, which can only be met through photonic integration. This Special Issue aims to collect recent research and development works on sensing devices based on photonic integrated technologies.

Papers can address any integration technology, (i.e. silicon photonics, III-V semiconductors, planar lightwave circuits, lithium niobate, etc.), and different sensing applications, including physical sensors (strain, temperature, acceleration, gyroscopes, etc.), chemical sensors (including liquid, solid or gas sensors), and biochemical sensors (including lab-on-chip, diagnostics, disease biomarkers, etc.). Integrated interrogators of optical fiber sensors (fiber Bragg gratings or distributed fiber sensors) also fit the topic of the current Special Issue.

Dr. Claudio J. Oton
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Photonic sensors
  • Micro/nano-sensors
  • Integrated sensors
  • Integrated optics
  • Optical fiber sensors
  • Silicon photonics
  • III-V semiconductor photonics
  • Glass-on-silicon
  • Planar lightwave circuits
  • Physical sensors
  • Chemical sensors
  • Biochemical sensors

Published Papers (5 papers)

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Research

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8 pages, 9698 KiB  
Article
Highly Sensitive Strain Sensor Based on a Novel Mach-Zehnder Interferometer with TCF-PCF Structure
by Xinran Dong, Haifeng Du, Zhi Luo and Ji’an Duan
Sensors 2018, 18(1), 278; https://doi.org/10.3390/s18010278 - 18 Jan 2018
Cited by 29 | Viewed by 4447
Abstract
A highly sensitive strain sensor based on a novel fiber in line Mach-Zehnder interferometer (MZI) was demonstrated experimentally. The MZI was realized by splicing a section of photonic crystal fiber (PCF) with the same length of thin core fiber (TCF) between two single [...] Read more.
A highly sensitive strain sensor based on a novel fiber in line Mach-Zehnder interferometer (MZI) was demonstrated experimentally. The MZI was realized by splicing a section of photonic crystal fiber (PCF) with the same length of thin core fiber (TCF) between two single mode fibers (SMFs). The fringe visibility of MZI can reach as high as 20 dB in air. In particular, the strain sensitivity of −1.95 pm/με was achieved within a range from 0 to 4000 με. Furthermore, the strain properties of different length of MZI was investigated. It was found that the sensitivity was weekly dependent on the length of MZI. The strain sensitivities corresponding to the MZI with 35 mm PCF, 40 mm PCF and 45 mm PCF at 1550 nm band were −1.78 pm/με, −1.73 pm/με and −1.63 pm/με, respectively. Additionally, the sensor has advantages of simple fabrication, compact size and high sensitivity as well as good fringe visibility. Full article
(This article belongs to the Special Issue Integrated Photonic Technologies for Sensing Applications)
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1613 KiB  
Article
Modeling of Thermal Phase Noise in a Solid Core Photonic Crystal Fiber-Optic Gyroscope
by Ningfang Song, Kun Ma, Jing Jin, Fei Teng and Wei Cai
Sensors 2017, 17(11), 2456; https://doi.org/10.3390/s17112456 - 26 Oct 2017
Cited by 7 | Viewed by 5413
Abstract
A theoretical model of the thermal phase noise in a square-wave modulated solid core photonic crystal fiber-optic gyroscope has been established, and then verified by measurements. The results demonstrate a good agreement between theory and experiment. The contribution of the thermal phase noise [...] Read more.
A theoretical model of the thermal phase noise in a square-wave modulated solid core photonic crystal fiber-optic gyroscope has been established, and then verified by measurements. The results demonstrate a good agreement between theory and experiment. The contribution of the thermal phase noise to the random walk coefficient of the gyroscope is derived. A fiber coil with 2.8 km length is used in the experimental solid core photonic crystal fiber-optic gyroscope, showing a random walk coefficient of 9.25 × 10−5 deg/√h. Full article
(This article belongs to the Special Issue Integrated Photonic Technologies for Sensing Applications)
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5515 KiB  
Article
Functionalizing a Tapered Microcavity as a Gas Cell for On-Chip Mid-Infrared Absorption Spectroscopy
by N. Pelin Ayerden, Julien Mandon, Frans J. M. Harren and Reinoud F. Wolffenbuttel
Sensors 2017, 17(9), 2041; https://doi.org/10.3390/s17092041 - 06 Sep 2017
Cited by 2 | Viewed by 4704
Abstract
Increasing demand for field instruments designed to measure gas composition has strongly promoted the development of robust, miniaturized and low-cost handheld absorption spectrometers in the mid-infrared. Efforts thus far have focused on miniaturizing individual components. However, the optical absorption path that the light [...] Read more.
Increasing demand for field instruments designed to measure gas composition has strongly promoted the development of robust, miniaturized and low-cost handheld absorption spectrometers in the mid-infrared. Efforts thus far have focused on miniaturizing individual components. However, the optical absorption path that the light beam travels through the sample defines the length of the gas cell and has so far limited miniaturization. Here, we present a functionally integrated linear variable optical filter and gas cell, where the sample to be measured is fed through the resonator cavity of the filter. By using multiple reflections from the mirrors on each side of the cavity, the optical absorption path is elongated from the physical m m -level to the effective m m -level. The device is batch-fabricated at the wafer level in a CMOS-compatible approach. The optical performance is analyzed using the Fizeau interferometer model and demonstrated with actual gas measurements. Full article
(This article belongs to the Special Issue Integrated Photonic Technologies for Sensing Applications)
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6159 KiB  
Article
Enhanced Strain Measurement Range of an FBG Sensor Embedded in Seven-Wire Steel Strands
by Jae-Min Kim, Chul-Min Kim, Song-Yi Choi and Bang Yeon Lee
Sensors 2017, 17(7), 1654; https://doi.org/10.3390/s17071654 - 18 Jul 2017
Cited by 33 | Viewed by 7664
Abstract
FBG sensors offer many advantages, such as a lack of sensitivity to electromagnetic waves, small size, high durability, and high sensitivity. However, their maximum strain measurement range is lower than the yield strain range (about 1.0%) of steel strands when embedded in steel [...] Read more.
FBG sensors offer many advantages, such as a lack of sensitivity to electromagnetic waves, small size, high durability, and high sensitivity. However, their maximum strain measurement range is lower than the yield strain range (about 1.0%) of steel strands when embedded in steel strands. This study proposes a new FBG sensing technique in which an FBG sensor is recoated with polyimide and protected by a polyimide tube in an effort to enhance the maximum strain measurement range of FBG sensors embedded in strands. The validation test results showed that the proposed FBG sensing technique has a maximum strain measurement range of 1.73% on average, which is 1.73 times higher than the yield strain of the strands. It was confirmed that recoating the FBG sensor with polyimide and protecting the FBG sensor using a polyimide tube could effectively enhance the maximum strain measurement range of FBG sensors embedded in strands. Full article
(This article belongs to the Special Issue Integrated Photonic Technologies for Sensing Applications)
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Review

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3702 KiB  
Review
Gyroscope Technology and Applications: A Review in the Industrial Perspective
by Vittorio M. N. Passaro, Antonello Cuccovillo, Lorenzo Vaiani, Martino De Carlo and Carlo Edoardo Campanella
Sensors 2017, 17(10), 2284; https://doi.org/10.3390/s17102284 - 07 Oct 2017
Cited by 301 | Viewed by 29854
Abstract
This paper is an overview of current gyroscopes and their roles based on their applications. The considered gyroscopes include mechanical gyroscopes and optical gyroscopes at macro- and micro-scale. Particularly, gyroscope technologies commercially available, such as Mechanical Gyroscopes, silicon MEMS Gyroscopes, Ring Laser Gyroscopes [...] Read more.
This paper is an overview of current gyroscopes and their roles based on their applications. The considered gyroscopes include mechanical gyroscopes and optical gyroscopes at macro- and micro-scale. Particularly, gyroscope technologies commercially available, such as Mechanical Gyroscopes, silicon MEMS Gyroscopes, Ring Laser Gyroscopes (RLGs) and Fiber-Optic Gyroscopes (FOGs), are discussed. The main features of these gyroscopes and their technologies are linked to their performance. Full article
(This article belongs to the Special Issue Integrated Photonic Technologies for Sensing Applications)
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