Far-field modeling of Moiré interferometry using scalar diffraction theory

Chen, Bicheng; Basaran, Cemal

doi:10.1016/j.optlaseng.2011.08.007

Cited by 10 publications

(4 citation statements)

References 36 publications

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“…When the Gaussian beam is transformed through the micro-lens, diffraction phenomena occur, significantly impacting light field calculations due to the small size of the beam spot at the fiber end. To attain precise optical field calculations in such situations, we turn to the Fresnel–Kirchhoff diffraction theory [ 15 ].…”

Section: Beam Propagation Modelmentioning

confidence: 99%

The Design of a Fiber-Coupling Micro-Lens Array for an M × N Wavelength-Selective Switch

Hao,

Gao,

Dong

et al. 2024

Micromachines

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The M × N port wavelength-selective switch (WSS) is a crucial device used for Reconfigurable Optical Add/Drop Multiplexors and optical switching nodes in optical communication systems. The primary function of an M × N port WSS is to simultaneously transmit and switch multiple input optical signals from input fiber ports to output fiber ports through spatial light coupling. The port array module in a WSS that is responsible for coupling the spatial beam with the fiber determines the important parameters of the M × N port WSS, such as the number of input/output ports and insertion loss. In this paper, VirtualLab Fusion software 2023.1 (Build 1.558), as a powerful physical optics simulation tool, is used to design and optimize a silicon micro-lens array that can achieve the high-precision coupling of a fiber array with a pitch of 1143 μm. Finally, the designed micro-lens is manufactured and experimentally demonstrates its good beam focusing ability with a 3 dB insertion loss. The designed micro-lens array coupling system, which delivers 28 focused spots of approximately 1mm in size (the beam has a 1/e2 diameter) after transmitting a distance of around 300 mm, effectively extends the number of WSS ports. This design method of the micro-lens array significantly amplifies the port count of the M × N port wavelength-selective switch, effectively expanding it to encompass an impressive 28 × 28 ports.

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Section: Beam Propagation Modelmentioning

confidence: 99%

The Design of a Fiber-Coupling Micro-Lens Array for an M × N Wavelength-Selective Switch

Hao,

Gao,

Dong

et al. 2024

Micromachines

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show abstract

“…The increasing interest in the Internet of Things (IOT), the increase of the automation processes and the more pressing requirements for both safety and security continuously enhance the demand for new sensing systems that are cheaper and simpler [99][100][101][102][103][104][105][106]. The possibility of integration with mobile phone and wireless interrogations is becoming more instrumental [107][108][109][110][111][112][113][114][115].…”

Section: Bar and Qr Code-based Strain Sensorsmentioning

confidence: 99%

Innovative Photonic Sensors for Safety and Security, Part I: Fundamentals, Infrastructural and Ground Transportations

Minardo

Bernini

Berruti

et al. 2023

Sensors

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Our group, involving researchers from different universities in Campania, Italy, has been working for the last twenty years in the field of photonic sensors for safety and security in healthcare, industrial and environment applications. This is the first in a series of three companion papers. In this paper, we introduce the main concepts of the technologies employed for the realization of our photonic sensors. Then, we review our main results concerning the innovative applications for infrastructural and transportation monitoring.

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“…At present, the simulation of moiré patterns is primarily categorized into methods based on ray-tracing [11], diffraction theory [12], and convolution [13]. The ray-tracing and diffraction theory methods often demand considerable memory and time for simulations.…”

Section: Introductionmentioning

confidence: 99%

18‐1: A Super‐fast and Precise Moiré Pattern Simulation Algorithm for Improving Antenna‐on‐Display Moiré Effect

Jia,

Zhou,

et al. 2024

Symp Digest of Tech Papers

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This study introduces a super‐fast and precise simulation algorithm capable of generating human‐visible moiré patterns, taking into account real structures with diverse patterns. The simulation of entire area of a mobile phone screen can be completed in less than 10 minutes, demonstrating a remarkable efficiency improvement of approximately 1200‐fold compared to traditional ray tracing method. The improvement comes from that we use a simplified method of calculating geometric areas instead of the first‐principles approach used in ray tracing. Based on the proposed algorithm, the moiré patterns ofAoD are optimized and the display quality is guaranteed.

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Far-field modeling of Moiré interferometry using scalar diffraction theory

Cited by 10 publications

References 36 publications

The Design of a Fiber-Coupling Micro-Lens Array for an M × N Wavelength-Selective Switch

The Design of a Fiber-Coupling Micro-Lens Array for an M × N Wavelength-Selective Switch

Innovative Photonic Sensors for Safety and Security, Part I: Fundamentals, Infrastructural and Ground Transportations

18‐1: A Super‐fast and Precise Moiré Pattern Simulation Algorithm for Improving Antenna‐on‐Display Moiré Effect

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