Toolkit for Photonic Integrated Circuits Based on Inverted Rib Waveguides

Debnath, Kapil; Moore, R.; Liles, Alexandros A.; O’Faoláin, Liam

doi:10.1109/jlt.2015.2466195

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…The PhC cavity-based reflector is compatible with low-loss waveguiding platforms, such as siloxane polymers 24 and silicon nitride 25 , making the proposed laser devices suitable for integration with active and passive components previously demonstrated for the vertically coupled PhC platform 26 – 28 toward the realization of more complex, power-efficient Si photonic systems.…”

Section: Discussionmentioning

confidence: 99%

Wavelength stability in a hybrid photonic crystal laser through controlled nonlinear absorptive heating in the reflector

et al. 2018

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The need for miniaturized, fully integrated semiconductor lasers has stimulated significant research efforts into realizing unconventional configurations that can meet the performance requirements of a large spectrum of applications, ranging from communication systems to sensing. We demonstrate a hybrid, silicon photonics-compatible photonic crystal (PhC) laser architecture that can be used to implement cost-effective, high-capacity light sources, with high side-mode suppression ratio and milliwatt output output powers. The emitted wavelength is set and controlled by a silicon PhC cavity-based reflective filter with the gain provided by a III–V-based reflective semiconductor optical amplifier (RSOA). The high power density in the laser cavity results in a significant enhancement of the nonlinear absorption in silicon in the high Q-factor PhC resonator. The heat generated in this manner creates a tuning effect in the wavelength-selective element, which can be used to offset external temperature fluctuations without the use of active cooling. Our approach is fully compatible with existing fabrication and integration technologies, providing a practical route to integrated lasing in wavelength-sensitive schemes.

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Section: Discussionmentioning

confidence: 99%

Wavelength stability in a hybrid photonic crystal laser through controlled nonlinear absorptive heating in the reflector

et al. 2018

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“…A taper section of isosceles trapezoid with the length L taper and the width W taper , as shown in Fig. 7, is inserted between the single mode and multimode waveguides to suppress the mismatch loss [32,33]. The structural parameters of the taper section are optimized.…”

Section: Structure Optimizationmentioning

confidence: 99%

Optimal design of 850 nm 2×2 multimode interference polymer waveguide coupler by imprint technique

Shao

Han

et al. 2016

Photonic Sens

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A 2×2 optical waveguide coupler at 850 nm based on the multimode interference (MMI) structure with the polysilsesquioxanes liquid series (PSQ-Ls) polymer material and the imprint technique is presented. The influence of the structural parameters, such as the single mode condition, the waveguide spacing of input/output ports, and the width and length of the multimode waveguide, on the optical splitting performance including the excess loss and the uniformity is simulated by the beam propagation method. By inserting a taper section of isosceles trapezoid between the single mode and multimode waveguides, the optimized structural parameters for low excess loss and high uniformity are obtained with the excess loss of -0.040 dB and the uniformity of -0.007 dB. The effect of the structure deviations induced during the imprint process on the optical splitting performance at different residual layer thicknesses is also investigated. The analysis results provide useful instructions for the waveguide device fabrication.

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