A proposal for eliminating the zeroth order with polarization independence by mixing SiO2/Ta2O5 metamaterials

Huang, Yusen; Wang, Bo; Li, Jiahao; Zou, Hong; Liu, Liqun; Yu, Weiyi; Huang, Jinhai; Yang, Xu; Huang, Linjian

doi:10.1016/j.ijleo.2022.170198

Cited by 2 publications

(2 citation statements)

References 35 publications

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“…The duty cycle f j ( j = 1, 2) is set around 0.5 for easy fabrication. Besides, the thickness h m of the metal slab Ag is set at 100 nm, which is sufficient for achieving high efficiency [40]. In order to lessen the annoyance caused by etching, the thickness h k (k = 1-4) of the grating ridge is controlled to be less than 2000 nm.…”

Section: Double-sided Structure Grating For Dual-functional Splittermentioning

confidence: 99%

Double-sided structure grating for dual-functional polarizing or non-polarizing splitter

Huang,

Wang

2024

Phys. Scr.

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In this paper, a novel bidirectional dual-functional metal-dielectric reflective grating with a double-sided structure is described, which can achieve transverse-electric (TE) polarization in the -1st order and transverse-magnetic (TM) polarization in the 0th order as a polarizing beam splitter in the upper part of the grating or TE and TM polarizations in the -1st order with polarization-independent property in the lower part of the grating. The proposed grating works at wavelength 1550 nm under Littrow mounting. Rigorous coupled-wave analysis (RCWA) is used to optimize grating parameters. The upper part can achieve diffraction efficiencies of 99.53% and 99.11% for TE polarization in the -1st order and TM polarization in the 0th order, respectively. In addition, the extinction ratios of -1st order and 0th order are 58.87 dB and 52.02 dB, respectively. The lower part can achieve diffraction efficiencies of 99.41% and 99.26% for TE and TM polarizations in the -1st order, respectively. Furthermore, wide incident wavelength and angular bandwidths can be obtained in both the upper and lower parts. Such a high-efficiency dual-functional grating has a wide range of applications in optical systems.

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Section: Double-sided Structure Grating For Dual-functional Splittermentioning

confidence: 99%

Double-sided structure grating for dual-functional polarizing or non-polarizing splitter

Huang,

Wang

2024

Phys. Scr.

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“…Optical communication thin film filter is a type of thin film filter, and its manufacturing process is to use the principle of thin film evaporation, to use the method of physical gas deposition, and to use the principle of dielectric material to apply two kinds of medicinal materials SiO 2 and Ta 2 O 5 , which are exchanged layer by layer using the high voltage and low current of the electron gun. This generates high-voltage arcs, shooting on the medicinal materials [12][13][14][15], melting under vacuum to generate airflow heat convection, and so attaching the medicinal materials to the steam. The size of the substrate has three specifications: 95 mm, 150 mm, and 228 mm in diameter, and the number of evaporated layers of the finished product can be 200-300 layers.…”

Section: Industrial Background and Applications Of Optical Communicat...mentioning

confidence: 99%

Identification of the Yield Rate by a Hybrid Fuzzy Control PID-Based Four-Stage Model: A Case Study of Optical Filter Industry

Chen,

Hung,

Lee

et al. 2024

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With the vigorous development of emerging technology and the advent of the Internet generation, high-speed Internet and fast transmission 5G wireless networks contribute to interpersonal communication. Now, the Internet has become popular and widely available, and human life is inseparable from various experiences on the Internet. Many base stations and data centers have been established to convert and switch from electrical transmission to optical transmission; thus, it is entering the new era of optical fiber networks and optical communication technologies. For optical communication, the manufacturing of components for the purpose of high-speed networks is a key process, and the requirement for the stability of its production conditions is very strict. In particular, product yields are always low due to the restriction of high-precision specifications associated with the limitations of too many factors. Given these reasons, this study proposes a hybrid fuzzy control-based model for industry data applications to organize advanced techniques of box-and-whisker plot method, association rule, and decision trees to find out the determinants that affect the yield rate of products and then use the fuzzy control Proportional-Integral-Derivative (PID) method to manage the determinants. Since it is unrealistic to test the real machine online operation at the manufacturing stage, the simulation software supersedes this for improved results, and a mathematical neural network is used to verify the given data to confirm whether its result is similar to that of the simulation. The study suggests that excessive temperature differentials between substrate and cavity can lead to low yields. It suggests using fuzzy control technology for temperature management, which could increase yield, reduce labor costs, and accelerate the transition to high-speed networks by mass-producing high-precision optical filters.

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A proposal for eliminating the zeroth order with polarization independence by mixing SiO2/Ta2O5 metamaterials

Cited by 2 publications

References 35 publications

Double-sided structure grating for dual-functional polarizing or non-polarizing splitter

Double-sided structure grating for dual-functional polarizing or non-polarizing splitter

Identification of the Yield Rate by a Hybrid Fuzzy Control PID-Based Four-Stage Model: A Case Study of Optical Filter Industry

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