Noninvasive monitoring and control in silicon photonics

Annoni, Andrea; Aguiar, Douglas; Melloni, Andrea; Guglielmi, Emanuele; Carminati, Marco; Ferrari, Giorgio; Buchheit, Annika; Wiemhöfer, Hans‐Dieter; Muñoz-Castro, Marina; Klitis, Charalambos; Sorel, Marc; Morichetti, Francesco

doi:10.1117/12.2268880

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…Instead the goal is to adjust the Li content of the Li x V 2 O 5 layers to produce the desired optical response, maintain that optical effect in time, and readjust it if necessary. We concede that, as seen in our previous work, ,, even a small amount of Li inserted in the Li x V 2 O 5 film will affect the optical properties of the material.…”

Section: Electrochemical Behavior Of Multilayer Stackmentioning

confidence: 51%

“…32 The possibility to modify the transmission of silicon photonics waveguides covered with V 2 O 5 has been also demonstrated. 33,34 ■ SOLID ELECTROLYTE APPROACH To implement this mechanism as a functional optical actuator for silicon photonics, the use of liquid electrolyte needs to be discarded. Instead, an all-solid-state system approach was investigated by means of a sputtered multilayer stack (sample preparation in Supporting Information).…”

Section: ■ Actuator Proposalmentioning

confidence: 99%

“…The understanding of this effect motivated us to employ the electrochemical actuation to realize tunable optical metasurfaces . The possibility to modify the transmission of silicon photonics waveguides covered with V 2 O 5 has been also demonstrated. , …”

Section: V2o5 As Actuator Materialsmentioning

confidence: 99%

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Self-Holding Optical Actuator Based on a Mixed Ionic–Electronic Conductor Material

et al. 2019

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A new approach for an optical actuator system based on mixed ionic–electronic conductor materials is proposed. The system actuates on light propagating in a waveguide implemented on a photonic integrated circuit by electrochemically changing the composition of the MIEC material, using the characteristic dependence of the optical properties upon stoichiometry. To realize this actuator, a multilayer stack was sputtered and characterized forming a battery-like system where ions reversibly travel from a Li-ion source to a Li x V2O5 layer, producing the desired change of the optical properties. Modal field FEM simulations were carried out to estimate the influence of the formed actuator on a waveguide fundamental mode implemented on the silicon on insulator platform. The time resolution of the actuator is estimated solving the diffusion profile of Li inside the Li x V2O5 coating and its evolution with time. Through simulations and measurements, promising results for a potential actuator system are shown, like small device length (<20 μm), low power consumption (∼10 pW per switch), reversibility, and long time stability.

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Section: Electrochemical Behavior Of Multilayer Stackmentioning

confidence: 51%

Section: ■ Actuator Proposalmentioning

confidence: 99%

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Self-Holding Optical Actuator Based on a Mixed Ionic–Electronic Conductor Material

et al. 2019

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Contactless integrated photonic probes: fundamentals, characteristics, and applications

Wu,

Wan,

Wang

et al. 2024

Front. Optoelectron.

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On-chip optical power monitors are indispensable for functional implementation and stabilization of large-scale and complex photonic integrated circuits (PICs). Traditional on-chip optical monitoring is implemented by tapping a small portion of optical power from the waveguide, which leads to significant loss. Due to its advantages like non-invasive nature, miniaturization, and complementary metal-oxide-semiconductor (CMOS) process compatibility, a transparent monitor named the contactless integrated photonic probe (CLIPP), has been attracting great attention in recent years. The CLIPP indirectly monitors the optical power in the waveguide by detecting the conductance variation of the local optical waveguide caused by the surface state absorption (SSA) effect. In this review, we first introduce the fundamentals of the CLIPP including the concept, the equivalent electric model and the impedance read-out method, and then summarize some characteristics of the CLIPP. Finally, the functional applications of the CLIPP on the identification and feedback control of optical signal are discussed, followed by a brief outlook on the prospects of the CLIPP. Graphical Abstract

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Noninvasive monitoring and control in silicon photonics

Cited by 2 publications

References 12 publications

Self-Holding Optical Actuator Based on a Mixed Ionic–Electronic Conductor Material

Self-Holding Optical Actuator Based on a Mixed Ionic–Electronic Conductor Material

Contactless integrated photonic probes: fundamentals, characteristics, and applications

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