On-chip photonic filter design via objective-first algorithm

Tutgun, Mediha; Alpkilic, Ahmet Mesut; Yilmaz, Yusuf Abdulaziz; Yeltik, Aydan; Yilmaz, D.; Kurt, Hamza

doi:10.1117/12.2321029

Cited by 1 publication

(1 citation statement)

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“…Recently, various techniques to design nanophotonic devices following a top-down approach, such as topology optimization [6][7][8], genetic algorithms [9,10], particle swarm optimization [11] or the objective-first approach [12], have emerged. The objective-first algorithm has proven particularly successful for designing high-efficiency and low-footprint nanophotonic devices [12][13][14][15] and currently constitutes one of the most promising nanophotonic inverse design methods. A problem of the objective-first approach however is that the resulting permittivity distribution consists of continuously varying values, while modern nanophotonic fabrication methods only allow for permittivity distributions containing two (few) discrete values, as each position in the design can only be occupied by either one material, e.g.…”

Section: Introductionmentioning

confidence: 99%

Inverse Design of Nanophotonic Devices using Dynamic Binarization

Butz¹,

Abazi²,

Ross³

et al. 2023

Preprint

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The complexity of applications addressed with photonic integrated circuits is steadily rising and poses increasingly challenging demands on individual component functionality, performance and footprint. Inverse design methods have recently shown great promise to address these demands using fully automated design procedures that enable access to non-intuitive device layouts beyond conventional nanophotonic design concepts. Here we present a dynamic binarization method for the objective-first algorithm that lies at the core of the currently most successful inverse design algorithms. Our results demonstrate significant performance advantages over previous implementations of objective first algorithms, which we show for a fundamental TE00 to TE20 waveguide mode converter both in simulation and in experiments with fabricated devices.

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