PLC-Based Arrayed Waveguide Grating Design for Fiber Bragg Grating Interrogation System

Li, Ké; Yuan, Peng; Lu, Lidan; Dong, Mingli; Zhu, Lianqing

doi:10.3390/nano12172938

Cited by 8 publications

(4 citation statements)

References 21 publications

(19 reference statements)

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“…The designs and simulations are performed using WDM Phasar software [30], based on the beam propagation method (BPM). This method is especially adapted for the design of AWGs on HIC platforms [31,32], and several research groups utilized the WDM Phasar software in SOI-AWG designs [33,34]. It justifies its choice for simulations on the SOI platform with effective index approximation.…”

Section: Design and Simulation Of The Silicon Circuitmentioning

confidence: 99%

Hybrid Graphene–Silicon Arrayed Waveguide Gratings for On-Chip Signal–Frequency Conversion

Tippinit,

Kuittinen,

Roussey

2024

Photonics

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We present the design and simulations of a novel integrated device concept enabling a frequency conversion of a broad signal. The solution is based on a hybrid silicon–graphene photonic chip, which could be used for controlled spectrometry in low-cost devices. The device is based on a silicon-on-insulator (SOI) platform on which an arrayed waveguide grating (AWG) is designed for operation at the center wavelength of λ = 1800 nm. The AWG is spectrally separating one broad input signal to thirty-two-output channels with a channel spacing of 2.72 nm. The output signals are well separated and uniform with the extinction ratio and the standard deviation of 10.00 dB and 0.04, respectively. The 3 dB channel width is 1.34 nm, which is suitable for sensing applications with significant accuracy. After spacial and spectral separation, each output signal is then converted to one signal at 1480 nm wavelength through a graphene-based saturable absorber scheme. Therefore, the device allows the detection of each separated signal with a simple near-infrared camera on which the outputs are imaged using conventional optics, leading to a classical pixel/wavelength correspondence. Crossed-waveguide couplers are designed to combine the controlling signal at 1480 nm to each channel waveguide of the AWG. The combination of the signals saturates the graphene layer at the output waveguides, allowing the pass of the controlling wavelength. This device can be applied as a spectrometer in environmental sensing and monitoring with high efficiency and low cost.

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Section: Design and Simulation Of The Silicon Circuitmentioning

confidence: 99%

Hybrid Graphene–Silicon Arrayed Waveguide Gratings for On-Chip Signal–Frequency Conversion

Tippinit,

Kuittinen,

Roussey

2024

Photonics

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“…For the common FBG sensor system with single-mode fiber, in order to achieve high-precision multipoint measurements, various multiplexing techniques have been proposed, such as wavelength division multiplexing (WDM) [18], time division multiplexing (TDM) [19], spatial division multiplexing (SDM) [20], and hybrid multiplexing [21]. Among them, AWG-based FBG interrogation for the WDM system is the most widely used [22][23][24][25]. The above scheme provides a new idea for the comprehensive multipoint detection of motor temperature.…”

Section: Introductionmentioning

confidence: 99%

A Multiplexing Optical Temperature Sensing System for Induction Motors Using Few-Mode Fiber Spatial Mode Diversity

Liu,

Gu,

Chen

2024

Electronics

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Induction motors are widely applied in motor drive systems. Effective temperature monitoring is one of the keys to ensuring the reliability and optimal performance of the motors. Therefore, this paper introduces a multiplexed optical temperature sensing system for induction motors based on few-mode fiber (FMF) spatial mode diversity. By using the spatial mode dimension of FMF, fiber Bragg grating (FBG) carried by different spatial modes of optical paths is embedded in different positions of the motor to realize multipoint synchronous multiplexing temperature monitoring. The paper establishes and demonstrates a photonic lantern-based mode division sensing system for motor temperature monitoring. As a proof of concept, the system demonstrates experiments in multiplexed temperature sensing for motor stators using the fundamental mode LP01 and high-order spatial modes LP11, LP21, and LP02. The FBG sensitivity carried by the above mode is 0.0107 nm/°C, 0.0106 nm/°C, 0.0097 nm/°C, and 0.0116 nm/°C, respectively. The dynamic temperature changes in the stator at different positions of the motor under speeds of 1k rpm, 1.5k rpm, 2k rpm with no load, 3 kg load, and 5 kg load, as well as at three specific speed–load combinations of 1.5k rpm_3 kg, 1k rpm_0kg, 2k rpm_5 kg and so on are measured, and the measured results of different spatial modes are compared and analyzed. The findings indicate that different spatial modes can accurately reflect temperature variations at various positions in motor stator winding.

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“…SOI is a state-of-the-art material for photonic incorporated chip materials in the era of nanotechnology. Compared with the current material frameworks, such as indium phosphide (InP) [16], SiO 2 [17,18], and polymers [19] which can be utilized to manufacture AWG, the SOI-based platform enables low power consumption, small size, and high computing speed AWG [20][21][22][23]. Its fabrication process is compatible with the complementary metal oxide semiconductor, which can simplify the process and lessen the expense.…”

Section: Introductionmentioning

confidence: 99%

SOI-based 12 × 12 arrayed waveguide grating for fiber Bragg grating interrogation system

Li,

Yuan,

et al. 2023

Meas. Sci. Technol.

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Fiber Bragg grating (FBG) interrogator is a scientific instrument that can indirectly monitor physical quantities such as temperature and pressure by detecting the center wavelength of FBG. The arrayed waveguide grating (AWG), one of the fundamental parts of the FBG interrogation system, is essential for driving the downsizing of the system and high-speed rate. In this paper, a 12-channel silicon on insulator (SOI) based AWG with an average 3-dB bandwidth of 2.23 nm, insertion loss of less than 5 dB, and crosstalk of -16.64 dB is designed and fabricated for a photonic integrated FBG interrogation system. The wavelength resolution of the FBG interrogation system of this AWG is 8 pm, and the wavelength accuracy measured in the dynamic range of 0.8 nm is 10.59 pm. This AWG can be well used in FBG interrogation systems.

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PLC-Based Arrayed Waveguide Grating Design for Fiber Bragg Grating Interrogation System

Cited by 8 publications

References 21 publications

Hybrid Graphene–Silicon Arrayed Waveguide Gratings for On-Chip Signal–Frequency Conversion

Hybrid Graphene–Silicon Arrayed Waveguide Gratings for On-Chip Signal–Frequency Conversion

A Multiplexing Optical Temperature Sensing System for Induction Motors Using Few-Mode Fiber Spatial Mode Diversity

SOI-based 12 × 12 arrayed waveguide grating for fiber Bragg grating interrogation system

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