Analysis of the Performance of WDM-CDM Bragg Grating Interrogation System With High-Contrast Grating VCSEL

Markowski, Konrad; Bojarczuk, Juliusz; Araszkiewicz, Piotr; Cybulski, Robert; Gąska, Michał; Gołaszewski, A.

doi:10.1109/jlt.2023.3237602

Cited by 5 publications

(3 citation statements)

References 39 publications

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“…Traditional fiber grating demodulation methods include the tunable filter method [1] and tunable laser method [2] , which make the sensing system power-consuming [3] and are not conducive to real-time detection due to its manufacturing complexity [4] and thermostatic control of the system light source [5] . An FBG demodulation system using a 1550 nm VCSEL is designed in [6], effectively reducing the manufacturing cost and power consumption of the conventional demodulator.…”

Section: Introductionmentioning

confidence: 99%

A VCSEL-based temperature-adaptive FBG demodulation system

Zhang,

Wang,

Chi

et al. 2024

Fourth International Conference on Sensors and Information Technology (ICSI 2024)

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A temperature-adaptive Fiber Bragg Grating (FBG) demodulation system based on a long-wavelength Vertical-Cavity Surface Emitting laser (VCSEL) is designed to reduce power consumption and cost in this paper. The temperature-adaptive FBG system is described in detail through the sections of VCSEL characterisation and selection, selection of the methane absorption peak wavelength and matching with the laser scanning wavelength range, selection of the fiber grating wavelength and matching with the laser scanning wavelength range, and calculation of the FBG wavelength change. The experimental results show that the system has an effective scanning wavelength range of 3.7 nm in the operating environment of 10~40°C without temperature control, and it has the characteristics of low power consumption, low cost and miniaturisation, which can be used as a sensing node in wireless sensing networks.

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Section: Introductionmentioning

confidence: 99%

A VCSEL-based temperature-adaptive FBG demodulation system

Zhang,

Wang,

Chi

et al. 2024

Fourth International Conference on Sensors and Information Technology (ICSI 2024)

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“…4 The former can replace classical Bragg gratings in a lossless dielectric configuration and is successfully used in compact laser systems such as vertical-cavity surfaceemitting lasers (VCSELs) to stabilize their time-like spectrum, emission direction, and laser beam's spatial characteristics. 5 An interesting mode of operation of such gratings is based on the Fano resonance that was studied almost a century ago 6 inside periodic structures. Recent work reveals the existence of sharp reflection profiles in the zeroth-order angular spectra, which can be applied for spatial filtering in the angular domain 4,[7][8][9][10][11][12][13][14] because of its strong reflectivity in the narrow angular domain.…”

Section: Introductionmentioning

confidence: 99%

Guided mode resonance optimization for spatial dispersion control

Lukošiunas,

Gailevicius,

Staliunas

2024

Nanophotonics X

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Surface relief gratings are proven to be valuable tools for polarization control, spectral and spatial filtering in the optics and electromagnetics community. With the use of guided mode resonance effect, one can achieve desired reflection/transmission properties of thin film gratings that can be applied in laser resonators as filters that partain lowest order transverse resonator modes, hence them being amplified in the gain medium. Such media can be: solid state laser systems, Vertical Surface Emitting Lasers (VCSELs), semiconductor laser systems, nanolasers, etc. This work mainly focuses on the application of genetic algorithm with Rigorous Coupled Wave Analysis algorithm to solve the inverse design problem for angular filter applications.

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“…Examples include metaoptical components such as metalenses based on metaatoms [2], surface relief holographic elements [3] and thin film grating elements [4]. They can replace classical Bragg gratings in a lossless dielectric configuration and are successfully used in compact laser systems such as vertical-cavity surface-emitting lasers (VCSELs) to stabilize their spectrum and emission direction [5].…”

Section: Introductionmentioning

confidence: 99%

Guided mode resonances for angular and spectral filtering

Lukošiūnas,

Nikitina,

Gailevičius

et al. 2023

physics

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The development of devices based on compact waveguides is a rapidly evolving field. A unique variation of such devices is the Fano-like resonance dielectric spectral and spatial filtre, made from a dielectric conformal thin film on a surface relief grating. It can be used in a normal (or oblique) angle-of-incidence configuration. This device facilitates directional selectivity, which is useful for transverse-mode cleaning in short optical cavities. It can also be enhanced by using leaky-mode effects to produce even sharper spectral features. However, a perfect spatial filtre should be as invariant as possible in the spectral and enhanced angular domains. Here, we solved the inverse design problem to produce such an effect. Numerically, we tuned the surface profile of the substrate grating, assuming a conformal layer on top. This resulted in trapezoidal relief patterns followed by narrow flat-top angular features. The combination of leaky mode effect and enhanced device topology will enable efficient and useful devices with a bandwidth of 50 nm and even more in the future.

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Analysis of the Performance of WDM-CDM Bragg Grating Interrogation System With High-Contrast Grating VCSEL

Cited by 5 publications

References 39 publications

A VCSEL-based temperature-adaptive FBG demodulation system

A VCSEL-based temperature-adaptive FBG demodulation system

Guided mode resonance optimization for spatial dispersion control

Guided mode resonances for angular and spectral filtering

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