Inverse design and topology optimization of novel photonic crystal broadband passive devices for photonic integrated circuits

Andonegui, Imanol; Calvo, Isidro; García-Adeva, Ángel J.

doi:10.1007/s00339-013-8032-5

Cited by 13 publications

(5 citation statements)

References 18 publications

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“…It seems of practical relevance to check whether an ID process like the one described in [15] and using the IHS method of 3, gets to improved grating couplers or, conversely, if conventional periodic grating couplers fare better. In Figure 2.b the ID method results are over-imposed to the exhaustive lookup-map computed in Section 2.…”

Section: Speeding Up: An Heuristic Engine For Non-assisted Explorationmentioning

confidence: 99%

Novel Light Coupling Systems Devised Using a Harmony Search Algorithm Approach

Andonegui

Landa-Torres

Manjarres

et al. 2017

Advances in Intelligent Systems and Computing

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We report a critical assessment of the use of an Inverse Design (ID) approach steamed by an improved Harmony Search (IHS) algorithm for enhancing light coupling to densely integrated photonic integratic circuits (PICs) using novel grating structures. Grating couplers, performing as a very attractive vertical coupling scheme for standard silicon nano waveguides are nowadays a custom component in almost every PIC. Nevertheless, their efficiency can be highly enhanced by using our ID methodology that can deal simultaneously with many physical and geometrical parameters. Moreover, this method paves the way for designing more sophisticated non-uniform gratings, which not only match the coupling efficiency of conventional periodic corrugated waveguides, but also allow to devise more complex components such as wavelength or polarization splitters, just to cite some.

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Section: Speeding Up: An Heuristic Engine For Non-assisted Explorationmentioning

confidence: 99%

Novel Light Coupling Systems Devised Using a Harmony Search Algorithm Approach

Andonegui

Landa-Torres

Manjarres

et al. 2017

Advances in Intelligent Systems and Computing

Self Cite

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“…Fig. 15 is about 74%, 67% by Ref. The photonic crystal (PhC) has a triangular grid array of air holes radius (r ¼ 0.348a) etched in a dielectric medium (n eff ¼ 3.24).…”

Section: × 2 Y Splitter Geometry Optimizationmentioning

confidence: 99%

Optimized 1 × 8 compact splitter based on photonic crystal using the two-dimensional finite-difference time-domain technique

Badaoui

2015

Opt. Eng

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The main objective of this study is to optimize an optical component considered as an essential building block in wavelength division multiplexing applications. The work presented here focuses on the design of an optimum 1 × 8 compact splitter based on a two-dimensional (2-D) photonic crystal (PhC) in triangular unit cells exhibiting high transmission. It generates a contribution to the 2-D planar PhCs in the integrated optics field. These new materials may prohibit the propagation of light in certain directions and energies. We also optimize the splitter topologies in order to integrate them in optoelectronic systems as division components. To do so, the 2-D finite-difference time-domain method is employed to characterize the transmission properties. Simulation results show that total transmissions of about 86%, 78%, and 86% for the 1 × 2, 1 × 4, and 1 × 8 Y splitters, respectively, at output ports are obtained around the wavelength 1.55 μm widely used in optical telecommunications. It is demonstrated numerically that the corresponding total insertion losses for the three splitters are, respectively, about 0.65, 1.08, and 0.65 dB. The simulation results are presented and discussed. Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 06/18/2015 Terms of Use: http://spiedl.org/terms Optical Engineering 067104-2 June 2015 • Vol. 54(6) Badaoui and Abri: Optimized 1 × 8 compact splitter based on photonic crystal. . . Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 06/18/2015 Terms of Use: http://spiedl.org/terms Optical Engineering 067104-4 June 2015 • Vol. 54(6) Badaoui and Abri: Optimized 1 × 8 compact splitter based on photonic crystal. . . Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 06/18/2015 Terms of Use: http://spiedl.org/terms Optical Engineering 067104-6 June 2015 • Vol. 54(6) Badaoui and Abri: Optimized 1 × 8 compact splitter based on photonic crystal. . . Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 06/18/2015 Terms of Use: http://spiedl.org/terms

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“…consisting of a photonic crystal structure that commutes signals between 1470 and 1560nm while operating almost single mode and with a near-zero velocity dispersion. [7][8][9] The photonic circuit is composed of devices that were each designed separately using the inverse design method. Then we merged them into a more complex circuit that tackles light paths as depicted in Figure 2.…”

Section: 1117/21201311005035 Page 3/3mentioning

confidence: 99%