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Design Optimisation of High-Brightness Laser Diodes for External Cavity Operation in the BRIDLE Project (2014)
Conference Proceeding
Larkins, E., Bull, S., Kaunga-Nyirenda, S., Helal, M., Vilokkinen, V., Uusimaa, P., …Erbert, G. (2014). Design Optimisation of High-Brightness Laser Diodes for External Cavity Operation in the BRIDLE Project. In 2014 International Semiconductor Laser Conference. https://doi.org/10.1109/islc.2014.143

We report on the design aspects of high performance diode lasers for application in high-brightness spectral beam combining and coherent beam combining modules. Key performance trade-offs are identified and potential solutions are explored.

Design and simulation of high-speed nanophotonic electro-optic modulators (2014)
Conference Proceeding
Kaunga-Nyirenda, S. N., Dias, H. K., Lim, J. J., Bull, S., Malaguti, S., Bellanca, G., & Larkins, E. C. (2014). Design and simulation of high-speed nanophotonic electro-optic modulators. In Numerical Simulation of Optoelectronic Devices, 2014. https://doi.org/10.1109/nusod.2014.6935329

In this work, an ultracompact electro-optic modulator based on refractive index modulation by plasma dispersion effect in PhC all-optical gate (AOG) is proposed. The index modulation is achieved by applying a time-varying bias voltage across the elec... Read More about Design and simulation of high-speed nanophotonic electro-optic modulators.

Factors influencing brightness and beam quality of conventional and distributed Bragg reflector tapered laser diodes in absence of self-heating (2014)
Journal Article
Kaunga-Nyirenda, S. N., Bull, S., Lim, J. J., Hasler, K., Fricke, J., & Larkins, E. C. (2014). Factors influencing brightness and beam quality of conventional and distributed Bragg reflector tapered laser diodes in absence of self-heating. IET Optoelectronics, 8(2), https://doi.org/10.1049/iet-opt.2013.0082

In this study, the authors examine some of the factors affecting the brightness and the beam quality of high-power tapered lasers. The large volume resonators required to achieve a high-power, high-brightness operation make the beam quality sensitive... Read More about Factors influencing brightness and beam quality of conventional and distributed Bragg reflector tapered laser diodes in absence of self-heating.