Publications of the Chair of Integrated Photonics

Broadband, temperature tolerant and passively biased resonantly enhanced Mach-Zehnder modulators

  Abstract: We describe a resonantly enhanced Mach-Zehnder modulator (MZM) that can be operated over a wide temperature range of 55°C without being actively biased, while providing a significant resonant enhancement of 6.8 at the nominal wavelength / temperature compared

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Silicon Nitride Photonic Integrated Circuits for Biophotonics and medica applications

Abstract: Here, we present the characteristics of the photonic integrated circuits technology developed for the European pilot line PIX4life. In addition, the details of two different silicon nitride fabrication platforms are summarized. J. Fernandez, M. A. G. Porcel, H. Jans,

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GeSn/SiGeSn Heterostructure and Multi Quantum Well Lasers

          Abstract: GeSn and SiGeSn are promising materials for the fabrication of a group IV laser source offering a number of design options from bulk to heterostructures and quantum wells. Here, we investigate GeSn/SiGeSn multi quantum

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High-Speed Silicon Photonics Modulators

        Abstract: The realization of gigahertz bandwidth modulators out of silicon-based technology in the early 2000s marked a cornerstone of silicon photonics development. While modulation speeds have since progressed well above 50 GHz and satisfy the bandwidth

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High-Q inverted silica microtoroid resonators monolithically integrated into a silicon photonics platform

      Abstract: We report on the monolithic integration of a new class of reflown silica microtoroid resonators with silicon nanowaveguides fabricated on top of the silica film. Connectivity with other silicon photonics devices is enabled by inversion of

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Reconfigurable Microring Resonator-Based Optical Transmitter for Elastic Optical Networks

    Abstract: The increasing data traffic and shrinking profit margins force network operators to look for intelligent methods of increasing the effective capacity of transmission systems. By employing advanced multicarrier transmission techniques, such as Nyquist wavelength division multiplexing, coherent

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8-channel WDM silicon photonics transceiver with SOA and semiconductor mode-locked laser

    Abstract: We demonstrate an integrated 8 by 14 Gbps dense wavelength division multiplexed silicon photonics transceiver that makes use of an external mode-locked laser as a light source and a single semiconductor optical amplifier for post-modulation signal amplification.

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PIX4life: photonic integrated circuits for bio-photonics

    Abstract: As key enabling technology, photonics has become critical in many fields. Advances in fabrication technologies have realized photonic integrated circuits not only for telecommunication wavelengths but also in the mid-infrared, and very importantly, in the visible. The

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Air-clad suspended nanocrystalline diamond ridge waveguides

Abstract: A hybrid group IV ridge waveguide platform is demonstrated, with potential application across the optical spectrum from ultraviolet to the far infrared wavelengths. The waveguides are fabricated by partial etching of sub-micron ridges in a nanocrystalline diamond thin film

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Integrated bio-photonics to revolutionize health care enabled through PIX4life and PIXAPP

    Abstract: Photonics has become critical to life sciences. However, the field is far from benefiting fully from photonics’ capabilities. Today, bulky and expensive optical systems dominate biomedical photonics, even though robust optical functionality can be realized cost-effectively on

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