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Reconfigurable Photonic Circuits

Research Area: Large-scale Photonic Integration

Main Researcher: Wim Bogaerts

Photonic integrated circuits today resemble the very specialized application specific integrated circuits (ASICs) rather than general-purpose CPUs or highly flexible field programmable gate arrays (FPGA). Still, reconfigurable optical circuits could dramatically reduce the time to application or prototype a new optical chip.

Optical FPGA.
Optical FPGA.

Flexibility can be added to photonic chips by including control layers, such as electronics for detectors readouts and actuator, and software to control that integration on top of the standard, out of the shelf, photonics components. Together the stack of optical components, electronic circuitry and algorithmic control can be used to add flexibility to the design, enabling an FPGA-equivalent approach for optical devices, where its functionality can be defined in operation time.

Photonics-electronics-software stack.
Photonics-electronics-software stack.

A first demonstration shows a circuit performing distinct functions based on programming the device. The figure bellow shows the evolution of the power at the output of the circuit during its adapting period.

Evolution of the power at the output of a self-adaptive circuit operating a beam coupling function, guiding the light from itas all four inputs to one output.
Evolution of the power at the output of a self-adaptive circuit operating a beam coupling function, guiding the light from itas all four inputs to one output.

Other people involved:

Related Research Projects

Publications

    International Journals

  1. A. Ribeiro, W. Bogaerts, Digitally controlled multiplexed silicon photonics phase shifter using heaters with integrated diodes, Optics Express, 25, (2017)  Download this Publication (4.1MB).
  2. A. Li, W. Bogaerts, Fundamental Suppression of Backscattering in Silicon Microrings, Optics Express, (2017)  Download this Publication (2.5MB).
  3. A. Ribeiro, A. Ruocco, L. Van Acker, W. Bogaerts, Demonstration of a 4x4-port universal linear circuit, Optica, 3(12), p.1348-1357 (2016)  Download this Publication (2MB).
      International Conferences

    1. A. Li, Y. Xing, W. Bogaerts, An integrated tunable reflector, European Conference on Integrated Optics (ECIO, Netherlands, p.paper W3.1 (2017)  Download this Publication (971KB).
    2. W. Bogaerts, Scaling Up Silicon Photonic Circuits: Where Are the Challenges?, International Workshop on Optical/Photonic Interconnects for Computing Systems (OPTICS Workshop) (invited), 3, Switzerland, (2017)  Download this Publication (275KB).
    3. A. Ribeiro, K. Miura, T. Spuesens, W. Bogaerts, Phase shift control with active feedback, Proceedings Symposium IEEE Photonics Society Benelux, Belgium, p.291-294 (2016)  Download this Publication (552KB).
    4. A. Ribeiro, A. Ruocco, L. Van Acker, W. Bogaerts, Demonstration of a4x4-port self-con guring universal linear optical component, Progress In Electromagnetics Research Symposium (invited), China, p.3372-3375 (2016)  Download this Publication (551KB).
    5. A. Ribeiro, K. Miura, T. Spuesens, W. Bogaerts, On-chip Differential Phase Monitoring with Balanced Photodiodes, Group IV Photonics, China, p.80-81 (2016)  Download this Publication (3.9MB).
    6. W. Bogaerts, Challenges for Designing Large-scale Integrated Photonics, European Conference on Integrated Optics (ECIO) / Workshop on Optical Waveguide Theory an Numerical Modeling (OWTNM) (invited), Poland, p.OWTNM-I-01 (2016)  Download this Publication (268KB).
    7. W. Bogaerts, Silicon Photonics: Designing for Complexity, HiPEAC Computing Systems Week (invited), Italy, (2015).
    8. A. Ribeiro, A. Ruocco, L. Van Acker, W. Bogaerts, Demonstration of a 4x4-port Universal Coupler, 12th International Conference on Group IV Photonics, Canada, p.PD5 (2015)  Download this Publication (1.1MB).

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