Silicon nanophotonics for on-chip light manipulation

Guo, Jingshu; Dai, Daoxin

doi:10.1088/1674-1056/27/10/104208

Cited by 9 publications

(4 citation statements)

References 172 publications

(277 reference statements)

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“…It enables chip-scale spectroscopy in a miniaturized, robust, stable, and affordable platform with low power consumption. This method is becoming more and more mature, and enormous progress has been shown for all the building blocks needed for such a type of spectroscopy, for example, light sources, including coherent and narrowband sources, − waveguides, and sensors, , as well as components used to manipulate the light, such as modulators, polarizers, switches, , couplers, beam splitters, and filters. ,, The sensing using the PIC platform can also utilize designs like metamaterials and phenomena like solitons.…”

Section: What Are the Barriers That Sensing Configurations Face?mentioning

confidence: 99%

Overtone Spectroscopy for Sensing─Recent Advances and Perspectives

2022

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In this perspective, we report an opinion on overtone spectroscopy for sensing and discuss the nature of the opportunities perceived for specialists. New spectroscopic strategies can potentially be extended to detect other common toxic byproducts in a chip-scale label-free manner and to enhance the functionality of chemical and biological monitoring. Nevertheless, the full potential of overtone spectroscopy is not yet exhausted, challenges must be overcome, and new avenues await. Within this Perspective, we look at where the field currently stands, highlight several successful examples of overtone spectroscopy based sensors and detectors, and ask what it will take to advance current state-of-the-art technology. It is our intention to point out some potential blind spots and to inspire further developments.

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Section: What Are the Barriers That Sensing Configurations Face?mentioning

confidence: 99%

Overtone Spectroscopy for Sensing─Recent Advances and Perspectives

2022

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“…Although the all-photonic system is the ultimate target, optical networks will require the cointegration of electronics and photonics over a long period of time, such as the combination of complementary metal-oxidesemiconductor (CMOS) electronics and silicon photonics. [22] Heterogeneous integration of these technologies will eventually be limited by totally different design approaches.…”

Section: Introductionmentioning

confidence: 99%

Digital synthesis of programmable photonic integrated circuits

Zhang¹,

Ji²,

Ding³

et al. 2022

Chinese Phys. B

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Programmable photonic waveguide meshes can be programmed into many different circuit topologies and thereby provide a variety of functions. Due to the complexity of the signal routing in a general mesh, a particular synthesis algorithm often only accounts for a specific function with a specific cell configuration. In this paper, we try to synthesize the programmable waveguide mesh to support multiple configurations with a more general digital signal processing platform. To show the feasibility of this technique, photonic waveguide meshes in different configurations (square, triangular and hexagonal meshes) are designed to realize optical signal interleaving with arbitrary duty cycles. The digital signal processing (DSP) approach offers an effective pathway for the establishment of a general design platform for the software-defined programmable photonic integrated circuits. The use of well-developed DSP techniques and algorithms establishes a link between optical and electrical signals and makes it convenient to realize the computer-aided design of optics–electronics hybrid systems.

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“…[1,2] Silicon-based photonic micro-resonators (MRs) have been widely investigated in various research fields, such as optical modulations, optical interconnects, wavelength convertors, nano-linear optics, THz technology, optical detections, and optical sensors. [3][4][5][6][7][8][9] Furthermore, the large refractive index (RI) difference of silicon-based waveguide can greatly reduce the cross section of waveguide to nanometer scale, which greatly reduces the amount of solution for detection. Hence, the silicon-based MRs are widely adopted as sensors which show great potential applications in the clinical diagnostic assays and biochemical detections.…”

Section: Introductionmentioning

confidence: 99%

Integrated silicon-based suspended racetrack micro-resonator for biological solution sensing with high-order mode*

Tian

Liu

et al. 2021

Chinese Phys. B

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A biological sensing structure with a high-order mode ( E 21 y ) is designed, which is composed of a suspended racetrack micro-resonator (SRTMR) and a microfluidic channel. The mode characteristics, coupling properties, and sensing performances are simulated by using the finite element method (FEM). To analyze the mode confinement property, the confinement factors in the core and cladding of the suspended waveguide for the E 11 x , E 11 y , and E 21 y are calculated. The simulation results show that the refractive index (RI) sensitivity of the proposed sensing structure can be improved by using the high-order mode ( E 21 y ). The RI sensitivity for the E 21 y mode is ∼ 201 nm/RIU, which is twice to thrice higher than those for the E 11 x mode and the E 11 y mode. Considering a commercial spectrometer, the proposed sensing structure based on the SRTMR achieves a limit of detection (LOD) of ∼ 4.7 × 10−6 RIU. Combined with the microfluidic channel, the SRTMR can possess wide applications in the clinical diagnostic assays and biochemical detections.

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Silicon nanophotonics for on-chip light manipulation

Cited by 9 publications

References 172 publications

Overtone Spectroscopy for Sensing─Recent Advances and Perspectives

Overtone Spectroscopy for Sensing─Recent Advances and Perspectives

Digital synthesis of programmable photonic integrated circuits

Integrated silicon-based suspended racetrack micro-resonator for biological solution sensing with high-order mode*

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