Related Experiment Video
Updated: Jul 7, 2026

08:44
Fabrication and Testing of Photonic Thermometers
Published on: October 24, 2018
6.1K
Multipurpose self-configuration of programmable photonic circuits
Daniel Pérez-López1,2, Aitor López3, Prometheus DasMahapatra3,4
1ITEAM Research Institute, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain. dperez@iteam.upv.es.
Nature Communications
|December 14, 2020
Summary
Automating programmable integrated photonic circuits with computational optimization enables self-characterization, auto-routing, and configuration. This advances high-density, complex integrated photonics for future information systems.
Area of Science:
- Photonics and optical engineering
- Computer science and computational methods
- Information systems and technology
Background:
- Programmable integrated photonic circuits offer bandwidth-unconstrained analog signal processing, complementing digital electronics for information systems.
- Current scalability is limited by complex manual control and configuration of numerous variables in photonic waveguide meshes.
Purpose of the Study:
- To propose and experimentally demonstrate automated management approaches for programmable integrated photonic circuits.
- To overcome scalability limitations by enabling simultaneous self-characterization, auto-routing, self-configuration, and optimization.
Main Methods:
- Development of two novel automated management approaches for programmable integrated photonic circuits.
- Experimental validation of the proposed methods for simultaneous circuit management.
- Integration of computational optimization techniques with photonic circuit control.
Main Results:
- Successful demonstration of simultaneous self-characterization, auto-routing, self-configuration, and optimization in programmable photonic circuits.
- Significant advancement in managing complex configurations for scalable photonic integrated circuits.
- Experimental evidence supporting the feasibility of automated control for high-density integrated photonics.
Conclusions:
- The proposed automated management strategies are crucial for advancing programmable integrated photonics.
- This work paves the way for realizing high-density, complex, and scalable integrated photonic systems.
- Combining computational optimization with photonics is key to future innovations in information processing.
Related Concept Videos
LC Circuits
An LC circuit consists of an inductor and a capacitor, either in series or parallel. Consider a charged capacitor connected with an inductor in series. Before the switch is closed, all the energy of the circuit is stored in the electric field of the capacitor. When the switch is closed, the capacitor begins to discharge, producing a current in the circuit. The current, in turn, creates a magnetic field in the inductor. Because of the induced emf in the inductor, the current cannot change...
Design Example: Capacitance Multiplier Circuit
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.

