Reduction of Audio Noise with Lowpass Chebyshev Type II Filter Simulated using GNU Octave

Badajos, Justine Clare T.; Ochoa, King Matthew P.; Tejadilla, Rex Albert P.; Penas, Reynaldo Ted L.

doi:10.1109/hnicem48295.2019.9072844

Cited by 8 publications

(2 citation statements)

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“…Butterworth, Bessel, Chebyshev, and elliptic filters are classical filters that model and govern signal filtering and processing in communications and computing systems [152][153][154]. These fundamental filters are broadly used in applications such as noise reduction, spectral analysis, and signal synthesis [155][156][157][158]. Photonic resonators offer a powerful solution to realize these filters in optical domain [159][160][161].…”

Section: Because Of Their Low Nonlinear Absorptionmentioning

confidence: 99%

Three Coupled Waveguide Sagnac Loop Reflectors for High Performance Integrated Optical Filters

Moss¹

2020

Preprint

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<p><b>We theoretically investigate advanced multi-functional integrated photonic filters formed by three waveguide coupled Sagnac loop reflectors (3WC-SLRs). By tailoring the coherent mode interference, the spectral response of the 3WC-SLR resonators is engineered to achieve diverse filtering functions with high performance. These include optical analogues of Fano resonances that yield ultrahigh spectral extinction ratios (ERs) and slope rates, resonance mode splitting with high ERs and low free spectral ranges, and classical Butterworth, Bessel, Chebyshev, and elliptic filters. A detailed analysis of the impact of the structural parameters and fabrication tolerances is provided to facilitate device design and optimization. The requirements for practical applications are also considered. These results theoretically verify the effectiveness of using 3WC-SLR resonators as multi-functional integrated photonic filters for flexible spectral engineering in diverse applications.</b></p>

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Section: Because Of Their Low Nonlinear Absorptionmentioning

confidence: 99%

Three Coupled Waveguide Sagnac Loop Reflectors for High Performance Integrated Optical Filters

Moss¹

2020

Preprint

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show abstract

“…Butterworth, Bessel, Chebyshev, and elliptic lters are classical lters that model and govern signal ltering and processing in communications and computing systems [152][153][154]. These fundamental lters are broadly used in applications such as noise reduction, spectral analysis, and signal synthesis [155][156][157][158]. Photonic resonators offer a powerful solution to realize these lters in optical domain [159][160][161].…”

Section: Introductionmentioning

confidence: 99%

Advanced Classical Optical Filters with Three Waveguide Coupled Sagnac Loop Reflectors

Arianfard¹,

Wu²,

Juodkazis³

et al. 2021

Preprint

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We theoretically investigate advanced multi-functional integrated photonic filters formed by three waveguide coupled Sagnac loop reflectors (3WC-SLRs). By tailoring the coherent mode interference, the spectral response of the 3WC-SLR resonators is engineered to achieve diverse filtering functions with high performance. These include optical analogues of Fano resonances that yield ultrahigh spectral extinction ratios (ERs) and slope rates, resonance mode splitting with high ERs and low free spectral ranges, and classical Butterworth, Bessel, Chebyshev, and elliptic filters. A detailed analysis of the impact of the structural parameters and fabrication tolerances is provided to facilitate device design and optimization. The requirements for practical applications are also considered. These results theoretically verify the effectiveness of using 3WC-SLR resonators as multi-functional integrated photonic filters for flexible spectral engineering in diverse applications.

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Harmonic reduction of second order sallen and key lowpass filter and second order MFB lowpass filter through closed loop PID controlled method

Hasan,

Bashar,

Sarker

et al. 2024

Int. j. inf. tecnol.

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Reduction of Audio Noise with Lowpass Chebyshev Type II Filter Simulated using GNU Octave

Cited by 8 publications

References 0 publications

Three Coupled Waveguide Sagnac Loop Reflectors for High Performance Integrated Optical Filters

Three Coupled Waveguide Sagnac Loop Reflectors for High Performance Integrated Optical Filters

Advanced Classical Optical Filters with Three Waveguide Coupled Sagnac Loop Reflectors

Harmonic reduction of second order sallen and key lowpass filter and second order MFB lowpass filter through closed loop PID controlled method

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