A compact SOI polarization beam splitter based on multimode interference coupler

Tu, Zhiying; Huang, Yi; Yi, Huaxiang; Wang, X. J.; Li, Y. P.; Li, L.; Hu, Weiwei

doi:10.1117/12.905589

Cited by 6 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A very easy to build and essential design of polarization beam splitters (PBSs), based on MMIs, is explained and tested in [113]. Other PBSs constructed through MMIs show larger dimensions compared to y-branch and directional coupler devices [114,115].…”

Section: Multimode Interferometer (Mmi) and Inverse Design Devicesmentioning

confidence: 99%

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

Amanti,

Andrini,

Armani

et al. 2024

Photonics

View full text Add to dashboard Cite

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.

show abstract

Section: Multimode Interferometer (Mmi) and Inverse Design Devicesmentioning

confidence: 99%

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

Amanti,

Andrini,

Armani

et al. 2024

Photonics

View full text Add to dashboard Cite

show abstract

“…The working principle of conventional PBS devices is established on either modal evolution [18] or interferometry. Several devices-such as multimode interference couplers [19], directional couplers (DCs) [20][21][22] and Mach-Zehnder interferometers [23]-are based on the principle of interferometry. Among these, PBS devices based on DCs are desired because they are usually compact in size.…”

Section: Introductionmentioning

confidence: 99%

Compact design of a polarization beam splitter based on silicon-on-insulator platform

2018

View full text Add to dashboard Cite

In this paper, a compact design of a polarization beam splitter is proposed, based on the principle of a directional coupler. A bridge waveguide is placed between two conventional silicon waveguide directional couplers. The optimized length of the bridge waveguide is obtained at 11 µm, where the directional coupler acts as a polarization beam splitter. As a result, maximum polarization extinction ratios of 20.32 dB and 15.4 dB are obtained for the TE-and TM-modes, respectively, at a 1536 nm wavelength.

show abstract

“…2-6a)[76,77], multimode interference (MMI) devices(Fig. 2-6b)[78,79], photonic crystals(Fig. 2-6c)[80,81] and directional couplers(Fig.…”

mentioning

confidence: 99%

Integrated photonic chip for quantum key distribution

Zhang¹

View full text Add to dashboard Cite

Silicon photonic technologies exploit silicon as an optical material to build a wide array of devices and systems. It has a vast and growing market in fields such as telecommunications, sensors, displays, and biomedical instrumentations. The flexibility, modularity and stability of silicon photonic systems provide unprecedented opportunities for next-generation quantum key distribution (QKD) and quantum networking. This doctoral thesis focuses on the design, simulation, fabrication, and experiment of QKD chips based on silicon photonics. Crucial components for QKD chips are designed and fabricated, including the grating coupler, polarization beam splitter, polarization rotator, modulator, photodetector, ring resonator and interferometer. Using these components, chip-based continuous variable quantum key distribution (CV-QKD) is demonstrated for the first time. The thesis focuses on three parts: the passive components, the active components, and the integrated QKD chip. For the passive components, the twodimensional grating coupler can be used as a path-to-polarization mode converter, the polarization beam splitter separates or combines two polarization states on-chip, and the polarization rotator rotates the polarization state between transverse electric and transverse magnetic modes. All the polarization manipulation components are essential for expanding the available degree of freedom of the photon. The Mach-Zehnder interferometer and ring resonator are the core components used in the modulator. Both are designed, simulated, fabricated and experimentally characterized. Active components, including modulators and detectors are also studied in this thesis. For modulator, a thermo-optic modulator and a carrier injection modulator are Nomenclature XXII Nomenclature ALD Atomic layer deposition AM Amplitude modulator ASE Amplified spontaneous emission BARC Bottom anti-reflective coating Bps Bits per second CMOS Complementary metal-oxide-semiconductor CMP Chemical-mechanical planarization COW Coherent one way CVD Chemical vapor deposition CV-QKD Continuous variable QKD CW Continuous wave

show abstract

A compact SOI polarization beam splitter based on multimode interference coupler

Cited by 6 publications

References 9 publications

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

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

Compact design of a polarization beam splitter based on silicon-on-insulator platform

Integrated photonic chip for quantum key distribution

Contact Info

Product

Resources

About