Dual-Band (O &amp; C-Bands) Two-Mode Multiplexer on the SOI Platform

Paredes, Bruna; Mohammed, Zakriya; Villegas, Juan Esteban; Rasras, Mahmoud

doi:10.1109/jphot.2021.3075292

Cited by 22 publications

(14 citation statements)

References 26 publications

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“…To analyze this physical entity, a 2 × 2 matrix is employed for computation. The use of asymmetric physical entities enables the realization of a splitter that is highly dependent on the input channel (one or two), exhibiting low crosstalk values (20-30 dB) and insertion loss below 1.2 dB [96]. Splitting via the directional coupler allows for achieving variations in transmission/reflection (T/R) near one.…”

Section: Directional Couplermentioning

confidence: 99%

Integrated Photonic Passive Building Blocks on Silicon-on-Insulator Platform

Amanti,

Andrini,

Armani

et al. 2024

Photonics

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Integrated photonics on Silicon-On-Insulator (SOI) substrates is a well developed research field that has already significantly impacted various fields, such as quantum computing, micro sensing devices, biosensing, and high-rate communications. Although quite complex circuits can be made with such technology, everything is based on a few ’building blocks’ which are then combined to form more complex circuits. This review article provides a detailed examination of the state of the art of integrated photonic building blocks focusing on passive elements, covering fundamental principles and design methodologies. Key components discussed include waveguides, fiber-to-chip couplers, edges and gratings, phase shifters, splitters and switches (including y-branch, MMI, and directional couplers), as well as subwavelength grating structures and ring resonators. Additionally, this review addresses challenges and future prospects in advancing integrated photonic circuits on SOI platforms, focusing on scalability, power efficiency, and fabrication issues. The objective of this review is to equip researchers and engineers in the field with a comprehensive understanding of the current landscape and future trajectories of integrated photonic components on SOI substrates with a 220 nm thick device layer of intrinsic silicon.

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Section: Directional Couplermentioning

confidence: 99%

Integrated Photonic Passive Building Blocks on Silicon-on-Insulator Platform

Amanti,

Andrini,

Armani

et al. 2024

Photonics

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“…Alternatively, first producing a waveguide mode of the same higher transverse order (e.g. via passive mode-conversion [42]) enables the same phase matching using continuous grating lines. We opt for this approach, which allows higher mode purity and outcoupling efficiency.…”

Section: Hermite-gaussian Modesmentioning

confidence: 99%

Grating Design Methodology for Tailored Free-Space Beam-Forming

Beck,

Home,

Mehta

2024

J. Lightwave Technol.

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We present a design methodology for free-space beam-forming with general profiles from grating couplers which avoids the need for numerical optimization, motivated by applications in ion trap physics. We demonstrate its capabilities through a variety of gratings using different wavelengths and waveguide materials, designed for new ion traps with all optics fully integrated, including UV and visible wavelengths. We demonstrate designs for diffraction-limited focusing without restriction on waveguide taper geometry, emission angle, or focus height, as well as focused higher order Hermite-Gaussian and Laguerre-Gaussian beams. Additional investigations examine the influence of grating length and taper angle on beam-forming, indicating the importance of focal shift in apertured beams. The design methodology presented allows for efficient design of beamforming gratings with the accuracy as well as the flexibility of beam profile and operating wavelength demanded by application in atomic systems.

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“…With the continuous development of Internet technology, there has been a rapidly growing demand for transmission capacity in communication systems over the past three decades [1][2][3]. To meet this growing demand for data, modern data centers and integrated communication systems are increasingly adopting optical interconnect technologies that prioritize energy efficiency to transmit and process optical signals in a compact footprint without compromising key performance metrics, such as propagation loss, tunability, and low crosstalk [4,5].…”

Section: Introductionmentioning

confidence: 99%

Study of Multi-Channel Mode-Division Multiplexing Based on a Chalcogenide-Lithium Niobate Platform

Zheng,

Liu,

Weng

et al. 2024

Crystals

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A multi-channel mode-division multiplexing based on a chalcogenide-lithium niobate platform using chalcogenide films with adjustable refractive index is proposed, with the aim of overcoming issues with narrow bandwidth and large crosstalk in conventional multiplexers. An asymmetric directional coupler, employing chalcogenide-based thin-film modulation, was designed to realize the multiplexing and separation of TE1, TE2, and TE3 modes. Simulations show that the device is capable of obtaining an insertion loss of between 0.03 dB and 0.7 dB and a crosstalk of between −21.66 dB and −28.71 dB at 1550 nm. The crosstalk of the TE1, TE2, and TE3 modes is below −20.1 dB when accessing the waveguide output port in the 1500–1600 nm band. The proposed multiplexer is a promising approach to enhance the transmission capability of thin-film lithium-niobate-integrated optical paths.

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Dual-Band (O & C-Bands) Two-Mode Multiplexer on the SOI Platform

Cited by 22 publications

References 26 publications

Integrated Photonic Passive Building Blocks on Silicon-on-Insulator Platform

Integrated Photonic Passive Building Blocks on Silicon-on-Insulator Platform

Grating Design Methodology for Tailored Free-Space Beam-Forming

Study of Multi-Channel Mode-Division Multiplexing Based on a Chalcogenide-Lithium Niobate Platform

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