Mirror-based polarization-insensitive broadband vertical optical coupling for Si waveguide

Noriki, Akihiro; Amano, Tsuyoshi; Shimura, Daisuke; Onawa, Yosuke; Sasaki, Hirokazu; Yaegashi, Hiroki; Yamada, Koji; Nishi, Hidetaka; Tsuchizawa, Tai; Mori, Masahiko; Sakakibara, Youichi

doi:10.7567/jjap.56.090302

Cited by 7 publications

(1 citation statement)

References 23 publications

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“…[15][16][17][18][19][20][21][22] We have worked on a planar 45°mirror for Si photonics, and a broadband polarization-independent vertical optical coupling was demonstrated. 23,24) However, the maximum mode-field diameter (MFD) output from the 45°mirror depended on the characteristics of the Si-photonics spot-size converters (SSCs), and it was about 3 μm in general. Therefore, an efficient coupling with the standard SMF, which has the MFD of around 10 μm, was difficult due to the large modefield mismatch.…”

Section: Introductionmentioning

confidence: 99%

Beam waist controlled vertical optical path conversion using integrated curved micro mirror for silicon photonics

Noriki

Amano

2020

Jpn. J. Appl. Phys.

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The optical input/output (I/O) of silicon (Si) photonics is a significant challenge in terms of its practical application. We recently demonstrated a vertical optical I/O using a 45°curved micro mirror. In this paper, the beam conversion controllability of the curved micro mirrors was studied. Different design curved micro mirrors were fabricated and those beam conversions were evaluated. The beam waist of the reflected light was successfully controlled by tuning the curvatures of the mirror. The experimental data were well agreed with simulation results. The coupling efficiency improvement between the mode mismatched fibers (a single-mode fiber and a spherical lensed fiber) was also demonstrated by using the curved mirror. Owing to the beam waist conversion, the coupling efficiency was improved by 3.3 dB. Very flat spectral characteristics were also obtained.

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Section: Introductionmentioning

confidence: 99%

Beam waist controlled vertical optical path conversion using integrated curved micro mirror for silicon photonics

Noriki

Amano

2020

Jpn. J. Appl. Phys.

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Hybrid and heterogeneous photonic integration

et al. 2021

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Increasing demand for every faster information throughput is driving the emergence of integrated photonic technology. The traditional silicon platform used for integrated electronics cannot provide all of the functionality required for fully integrated photonic circuits, and thus, the last decade has seen a strong increase in research and development of hybrid and heterogeneous photonic integrated circuits. These approaches have enabled record breaking experimental demonstrations, harnessing the most favorable properties of multiple material platforms, while the robustness and reliability of these technologies are suggesting entirely new approaches for precise mass manufacture of integrated circuits with unprecedented variety and flexibility. This Tutorial provides an overview of the motivation behind the integration of different photonic and material platforms. It reviews common hybrid and heterogeneous integration methods and discusses the advantages and shortcomings. This Tutorial also provides an overview of common photonic elements that are integrated in photonic circuits. Finally, an outlook is provided about the future directions of the hybrid/heterogeneous photonic integrated circuits and their applications.

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Hybrid material integration for active photonic applications

Chen,

Fang

et al. 2024

APL Photonics

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The huge development of micro-/nano-manufacturing techniques on different materials has greatly expanded the possibilities of realizing on-chip multifunctional devices on photonic integrated circuits. In recent years, we have witnessed technological advancements, such as active photonic applications through hybrid integration. In this Perspective, we first summarize the integrated photonic materials, hybrid integration technologies, and corresponding coupling techniques in hybrid integration and give the technique prospects. We also introduce significant advances in hybrid integration technologies for active photonic applications, such as laser sources, optical frequency combs, and modulators, and give our views that are likely to develop rapidly. Finally, we discuss the challenges in hybrid technologies and photonic applications.

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Mirror-based polarization-insensitive broadband vertical optical coupling for Si waveguide

Cited by 7 publications

References 23 publications

Beam waist controlled vertical optical path conversion using integrated curved micro mirror for silicon photonics

Beam waist controlled vertical optical path conversion using integrated curved micro mirror for silicon photonics

Hybrid and heterogeneous photonic integration

Hybrid material integration for active photonic applications

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