Wavemeter based on dispersion and speckle in a tapered hollow waveguide

Hornig, Graham J.; Harrison, Timothy R.; Bu, L.; Azmayesh-Fard, Seyed M.; DeCorby, R. G.

doi:10.1364/osac.2.000495

Cited by 10 publications

(2 citation statements)

References 19 publications

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“…Subsequently, the network channels the wavelengths to the MMF to analyze each spectral range [43]. Venturing into the realm of diverse waveguide architectures, Hornig et al [44] harnessed a tapered hollow waveguide, leveraging its dispersion to attain a high resolution of better than 10 pm. In a parallel endeavor, Civitci [45] conceptualized adiabatically connected slab waveguides, employing the slab to mimic a prism-like mechanism.…”

Section: Waveguidementioning

confidence: 99%

Review of Miniaturized Computational Spectrometers

Guan,

Lim,

Sun

et al. 2023

Sensors

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Spectrometers are key instruments in diverse fields, notably in medical and biosensing applications. Recent advancements in nanophotonics and computational techniques have contributed to new spectrometer designs characterized by miniaturization and enhanced performance. This paper presents a comprehensive review of miniaturized computational spectrometers (MCS). We examine major MCS designs based on waveguides, random structures, nanowires, photonic crystals, and more. Additionally, we delve into computational methodologies that facilitate their operation, including compressive sensing and deep learning. We also compare various structural models and highlight their unique features. This review also emphasizes the growing applications of MCS in biosensing and consumer electronics and provides a thoughtful perspective on their future potential. Lastly, we discuss potential avenues for future research and applications.

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Section: Waveguidementioning

confidence: 99%

Review of Miniaturized Computational Spectrometers

Guan,

Lim,

Sun

et al. 2023

Sensors

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“…In this respect, specklebased spectroscopy applications are distinct from all other approaches in that they translate the spectral reconstruction problem into a different domain, namely that of pattern recognition. In recent years, this strategy inspired several applications targeted at the realization of low-cost, alignment-free, on-chip wavemeters and spectrometers [13][14][15]. Random media used for speckle spectroscopy include single [16] or multimode fibers [17], spiral waveguides [18], integrating spheres [19], photonic amorphous structures up to pieces of mother-of-pearl [20].…”

Section: Reconstructive Spectroscopy 21 Speckled Pattern-based Spectr...mentioning

confidence: 99%

Perspectives and recent advances in super-resolution spectroscopy: Stochastic and disordered-based approaches

Boschetti

Pattelli

Torre

et al. 2022

Applied Physics Letters

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Spectroscopic applications are characterized by the constant effort to combine high spectral resolution with large bandwidth. A trade-off typically exists between these two aspects, but the recent development of super-resolved spectroscopy techniques is bringing new opportunities into this field. This is particularly relevant for all applications where compact and cost-effective instruments are needed such as in sensing, quality control, environmental monitoring, or biometric authentication, to name a few. These unconventional approaches exploit several strategies for spectral investigation, taking advantage of concepts such as sparse sampling, artificial intelligence, or post-processing reconstruction algorithms. In this Perspective, we discuss the main strengths and weaknesses of these methods, tracing promising future directions for their further development and widespread adoption.

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Sensors for photonic devices

Kobtsev

2022

Opt Quant Electron

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Wavemeter based on dispersion and speckle in a tapered hollow waveguide

Cited by 10 publications

References 19 publications

Review of Miniaturized Computational Spectrometers

Review of Miniaturized Computational Spectrometers

Perspectives and recent advances in super-resolution spectroscopy: Stochastic and disordered-based approaches

Sensors for photonic devices

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