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Self-consistent simulation of high-brightness diode lasers with external optical feedback (2015)
Conference Proceeding
Helal, M. A., Bull, S., Kaunga-Nyirenda, S. N., Lim, J. J., & Larkins, E. C. (2016). Self-consistent simulation of high-brightness diode lasers with external optical feedback. In 2015 IEEE High Power Diode Lasers and Systems Conference (HPD) (27-28). https://doi.org/10.1109/HPD.2015.7439678

© 2015 IEEE. This paper presents a model for simulating the impact of external optical feedback on large-optical cavity high-brightness diode lasers. The simulations are performed with our 2.5D simulation tool for high-brightness laser diodes. The ex... Read More about Self-consistent simulation of high-brightness diode lasers with external optical feedback.

Separate phase-locking and coherent combining of two laser diodes in a Michelson cavity (2015)
Conference Proceeding
Schimmel, G., Doyen, I., Janicot, S., Ramirez, L., Hanna, M., Georges, P., …Larkins, E. (2015). Separate phase-locking and coherent combining of two laser diodes in a Michelson cavity. In High-Power Diode Laser Technology and Applications XIII. https://doi.org/10.1117/12.2079314

We describe a new coherent beam combining architecture based on passive phase-locking of two laser diodes in a Michelson external cavity on their rear facet, and their coherent combination on the front facet. As a proof-of-principle, two ridge lasers... Read More about Separate phase-locking and coherent combining of two laser diodes in a Michelson cavity.

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.