Ultra-low loss photonic integrated circuit with membrane-type photonic crystal waveguides.

By S. Mcnab, Nikolaj Moll, Yurii A. Vlasov. Optics Express, 2003

754 citations recorded by the source corpus.

We report the design and testing of an SOI-based photonic integrated circuit containing two-dimensional membrane-type photonic crystal waveguides. The circuit comprises spot-size converters to efficiently couple light from a fiber into single-mode strip waveguides and butt-couplers to couple from strip waveguides to photonic crystal waveguides. Each optical interface was optimized to minimize back-reflections and reduce the Fabry-Perot noise. The transmission characteristics of each component are measured and record low propagation losses in photonic crystal waveguides of 24dB/cm are reported. The combination of an efficient two-stage coupling scheme and utilization of ultra-long (up to 2mm) photonic crystal waveguides reduces the uncertainty in determining the loss figure to 3dB/cm.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/8b2c5db8b080ce8c77c3983b4097805ca97593d6

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In Atomic and Molecular Physics, and Optics

In Electrical and Electronic Engineering

Citations in the corpus

Thermal annealing in hydrogen for 3-D profile transformation on silicon-on-insulator and sidewall roughness reduction (2006, background): “Though state-of-the-art complementary metal-oxide-semiconductor (CMOS) technologies can achieve sidewall roughness less than5nm[5], inmanyresearch labs, sidewall roughness is about 10–20 nm.”
Silicon Photonics (2006, methodology): “), efficient fiber–waveguide coupling can be achieved using the inverse taper approach [22], [24]–[26].”
Photonic Packaging: Transforming Silicon Photonic Integrated Circuits into Photonic Devices (2016, positive): “Edge-coupling is a well-established approach for the commercial packaging of laser-chips [16], but has not been widely adopted in the field of Si-photonics, despite being able to deliver broadband, polarization-agnostic insertion-losses of better than −1 dB after careful alignment [17].”
Compact Wavelength-Selective Functions in Silicon-on-Insulator Photonic Wires (2006, methodology): “For incoupling and outcoupling, we use grating couplers that couple light directly from a broad ridge waveguide in and out of a standard single-mode fiber, which is positioned above the substrate at a 10◦ angle [4], [5].”
Optomechanical crystals (2009, background): “Photonic crystals can also be formed into planar lightwave circuits for the integration of optical and electrical microsystems[6].”