Optical Frequency Comb Generation in Silicon by Recursive Electro-Optic Modulation

Idjadi, Mohamad Hossein; Arab, Shermin; Aflatouni, Firooz

doi:10.1364/cleo_si.2020.sf3o.5

Cited by 5 publications

(6 citation statements)

References 6 publications

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“…For instance, band-selective microresonators can be designed in materials with a high second-order nonlinearity, such as lithium niobate and silicon carbide, for second-harmonic generations in visible and telecom wavelength bands. In silicon, foundry fabricable near-zero dispersion resonators open up the possibility of resonator-enhanced electro-optic modulator combs , and mid-IR nonlinear wave mixing, which is critical for on-chip communications and spectroscopy.…”

Section: Discussionmentioning

confidence: 99%

“…We demonstrate this framework theoretically and experimentally through three examples of resonator design, which appear in nonlinear optics, − and on-chip optical communication systems. − First we demonstrate a fine control over the resonant frequencies (i.e., dispersion) of both Fabry–Perot and microring resonators. Second, we demonstrate a high optical quality factor with a multimode waveguide while maintaining a single resonant mode family.…”

Section: Introductionmentioning

confidence: 92%

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Photonic Inverse Design of On-Chip Microresonators

et al. 2022

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The automation of device design enabled by optimization and machine learning techniques has been transformative for photonics. While this automation has been successful for nonresonant devices, automated photonic design has remained elusive for resonant devices, key elements for on-chip communication technologies of biosensing and quantum optics, due to their highly nonconvex optimization landscapes. We propose a framework that solves this problem by mapping the design of photonic resonators to a set of nonresonant design problems. We theoretically and experimentally demonstrate this framework and show flexible dispersion engineering, a quality factor beyond 2 million on silicon-on-insulator with single-mode operation, and selective wavelength-band operation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 92%

Photonic Inverse Design of On-Chip Microresonators

et al. 2022

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“…S7) demonstrated in this work. For example, different types of chip-scale lasers and frequency comb sources such as mode-locked quantum dot lasers 5 , electro-optical frequency combs 34,59 , and vertical cavity surface emitting laser (VCSEL) 60 can be used. Co-design of the laser source, optical link architecture, photonic devices and signal processing will facilitate the next generation of optical interconnects in data-centre networks and hardware accelerators.…”

Section: Discussionmentioning

confidence: 99%

Multi-dimensional data transmission using inverse-designed silicon photonics and microcombs

et al. 2022

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The use of optical interconnects has burgeoned as a promising technology that can address the limits of data transfer for future high-performance silicon chips. Recent pushes to enhance optical communication have focused on developing wavelength-division multiplexing technology, and new dimensions of data transfer will be paramount to fulfill the ever-growing need for speed. Here we demonstrate an integrated multi-dimensional communication scheme that combines wavelength- and mode- multiplexing on a silicon photonic circuit. Using foundry-compatible photonic inverse design and spectrally flattened microcombs, we demonstrate a 1.12-Tb/s natively error-free data transmission throughout a silicon nanophotonic waveguide. Furthermore, we implement inverse-designed surface-normal couplers to enable multimode optical transmission between separate silicon chips throughout a multimode-matched fibre. All the inverse-designed devices comply with the process design rules for standard silicon photonic foundries. Our approach is inherently scalable to a multiplicative enhancement over the state of the art silicon photonic transmitters.

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“…Here we use a table-top mode-locked laser (Fig. 2), but future implementations can benefit from chip-scale frequency combs such as Kerr microcombs 14 , mode-locked quantum dot lasers 15 , and (resonant) electro-optical frequency combs 32,50 . Co-design of the laser source, optical link architecture, photonic devices and signal processing will facilitate the next generation of optical interconnects in data-centre networks, wireless communications, and hardware accelerators.…”

Section: Discussionmentioning

confidence: 99%

Inverse-designed multi-dimensional silicon photonic transmitters

Yang¹,

White²,

Ashtiani³

et al. 2021

Preprint

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Modern microelectronic processors have migrated towards parallel computing architectures with many-core processors. However, such expansion comes with diminishing returns exacted by the high cost of data movement between individual processors. The use of optical interconnects 1,2 has burgeoned as a promising technology that can address the limits of this data transfer. While recent pushes to enhance optical communication have focused on developing wavelength-division multiplexing technology, this approach will eventually saturate the usable bandwidth, and new dimensions of data transfer will be paramount to fulfill the ever-growing need for speed 3-6 . Here we demonstrate an integrated intra-and inter-chip multi-dimensional communication scheme enabled by photonic inverse design. Using broad-band inverse-designed mode-division multiplexers, we combine wavelength-and mode-multiplexing of data at a rate exceeding terabit-per-second. Crucially, as we take advantage of an orthogonal optical basis, our approach is inherently scalable to a multiplicative enhancement over the current state of the art.

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Optical Frequency Comb Generation in Silicon by Recursive Electro-Optic Modulation

Abstract: On-chip optical frequency comb generation using recursive electro-optic modulation is demonstrated. The chip, fabricated on IME 180 nm SOI process, is used to generate a 120 GHz wide frequency comb with 10 GHz tooth-spacing.

Cited by 5 publications

References 6 publications

Photonic Inverse Design of On-Chip Microresonators

Photonic Inverse Design of On-Chip Microresonators

Multi-dimensional data transmission using inverse-designed silicon photonics and microcombs

Inverse-designed multi-dimensional silicon photonic transmitters

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