Demonstration of a silicon polarization splitter and rotator based on a bow-tie structure

Bustamante, Yesica R. R.; Farias, Giovanni B. de; Andrade, Hening A. de; Hernández-Figueroa, H.E.

doi:10.1016/j.photonics.2021.100921

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…As a benchmark, a PRS is constructed with the PPM. The comparison of the PPM-based PRS with the PRS experimentally demonstrated in literature [17,19,[21][22][23][24][25][27][28][29][30]32,33,38,41,45,[47][48][49]51,52,54] is listed in Note S12, Supporting Information. The PPM-based PRS shows good overall performance.…”

Section: Discussionmentioning

confidence: 99%

“…The essence of the rotation in a waveguide is symmetry breaking. Conventionally, the asymmetric directional coupling [ 17–28 ] and TM 0 − TE 1 mode evolution [ 29–54 ] concepts are widely employed for symmetry breaking owing to their fabrication‐friendly nature. However, they are not extensively accepted as the ideal choices in dense integration due to their hundreds‐of‐micrometer level size.…”

Section: Introductionmentioning

confidence: 99%

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On‐Chip Light Polarization Management by Mapping the Polarization Information to Phase Shift

Deng,

Jin,

Qin

et al. 2023

Laser & Photonics Reviews

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The comprehensive management of light polarization states has significantly advanced various fields into a new era. With the advent of photonic integration, there has been a persistent desire to replace the bulky optical components with compact chip‐scale circuits. Nonetheless, the complete integration of polarization‐dependent systems has not yet been accomplished due to the absence of a mature polarization management scheme that possesses a tiny form factor and high foundry process compatibility meanwhile maintaining low operation complexity. Here, to overcome these limitations a novel concept called polarization phase mapping, which encodes the information between the light polarization in one waveguide and the relative light phase shift in another two waveguides, is proposed. With this bi‐directional mapping approach, the fundamental basis of polarization management has shifted from polarization adjustment to phase regulation. All essential polarization‐related functions including synthesizing, stabilizing, measuring, rotating, splitting, and mixing are demonstrated with the standard process in foundries. The size of the polarization rotating unit is pushed down to a few light wavelengths while keeping a competitive performance. Moreover, the proposed concept can be readily applied to other integrated photonics platforms. It is expected to unlock new opportunities for complex polarization‐related applications.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On‐Chip Light Polarization Management by Mapping the Polarization Information to Phase Shift

Deng,

Jin,

Qin

et al. 2023

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

Recent Progress in Light Polarization Control Schemes for Silicon Integrated Photonics

Zafar,

Pereira

2024

Laser & Photonics Reviews

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Light polarization control is a target in photonics, and this paper provides a comprehensive review of research from various groups on the silicon‐on‐insulator (SOI) platform. It draws comparisons between devices such as polarization splitters (PS), polarizers, and polarization splitters/rotators (PSR). These devices are fabricated using various technologies, including silicon nanowires, ridge waveguides, hybrid plasmonic waveguides, and subwavelength grating (SWG) waveguides. A detailed review of polarizers used as cleanup filters in splitters is initiated. Subsequently, various polarization splitters utilizing asymmetric directional couplers (ADCs), which typically exhibiting low extinction ratios (ERs), are delved. To enhance ERs, a detailed comparison of methods outlined in the literature is provided. One notable method includes integrating on‐chip polarizers at both ports to eliminate unwanted light fractions and achieve exceptionally high ERs. Furthermore, SWG‐based polarizers and splitters commonly face issues with Bragg reflections that can affect other photonic devices and lasers and ways to minimize unwanted polarization back reflections in SWG‐designed polarization control devices are examined. Finally, emerging applications in mid‐infrared (MIR) sensing are explored, highlighting the necessity of polarization rotators for on‐chip transverse electric (TE) operation, since quantum cascade lasers, the primary sources in this range, emitting radiation in the (TM) mode.

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Inverse design of subwavelength gratings-assisted ultracompact 1.55/2 μm wavelength diplexer based on a bullet-shaped structure

Wen,

Pan,

et al. 2024

Opt Quant Electron

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Demonstration of a silicon polarization splitter and rotator based on a bow-tie structure

Cited by 8 publications

References 19 publications

On‐Chip Light Polarization Management by Mapping the Polarization Information to Phase Shift

On‐Chip Light Polarization Management by Mapping the Polarization Information to Phase Shift

Recent Progress in Light Polarization Control Schemes for Silicon Integrated Photonics

Inverse design of subwavelength gratings-assisted ultracompact 1.55/2 μm wavelength diplexer based on a bullet-shaped structure

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