Semiconductor ring lasers coupled by a single waveguide

by Coomans, W., Gelens, L., Van der Sande, G., Mezosi, G., Sorel, M., Danckaert, J. and Verschaffelt, G.
Abstract:
We experimentally and theoretically study the characteristics of semiconductorring lasers bidirectionally coupled by a single bus waveguide. This configuration has, e.g., been suggested for use as an optical memory and as an optical neural network motif. The main results are that the coupling can destabilize the state in which both rings lase in the same direction, and it brings to life a state with equal powers at both outputs. These are both undesirable for optical memory operation. Although the coupling between the rings is bidirectional, the destabilization occurs due to behavior similar to an optically injected laser system.
Reference:
Semiconductor ring lasers coupled by a single waveguide Coomans, W., Gelens, L., Van der Sande, G., Mezosi, G., Sorel, M., Danckaert, J. and Verschaffelt, G., Applied Physics Letters, volume 100, pp. 251114, 2012.
Bibtex Entry:
@article{coomans_semiconductor_2012,
	title = {Semiconductor ring lasers coupled by a single waveguide},
	volume = {100},
	issn = {0003-6951, 1077-3118},
	url = {http://scitation.aip.org/content/aip/journal/apl/100/25/10.1063/1.4730615},
	doi = {10.1063/1.4730615},
	abstract = {We experimentally and theoretically study the characteristics of semiconductorring lasers bidirectionally coupled by a single bus waveguide. This configuration has, e.g., been suggested for use as an optical memory and as an optical neural network motif. The main results are that the coupling can destabilize the state in which both rings lase in the same direction, and it brings to life a state with equal powers at both outputs. These are both undesirable for optical memory operation. Although the coupling between the rings is bidirectional, the destabilization occurs due to behavior similar to an optically injected laser system.},
	number = {25},
	urldate = {2016-11-07},
	journal = {Applied Physics Letters},
	author = {Coomans, W. and Gelens, L. and Van der Sande, G. and Mezosi, G. and Sorel, M. and Danckaert, J. and Verschaffelt, G.},
	month = jun,
	year = {2012},
	keywords = {Diffraction gratings, Optical storage systems, Radiofrequency spectra, Relaxation oscillations, Ring lasers},
	pages = {251114},
	file = {Full Text PDF:/home/jan/.zotero/zotero/djuw86a6.default/zotero/storage/X4AIM6AB/Coomans et al. - 2012 - Semiconductor ring lasers coupled by a single wave.pdf:application/pdf;Snapshot:/home/jan/.zotero/zotero/djuw86a6.default/zotero/storage/AX9A5NQW/1.html:text/html}
}