%0 Journal Article %1 Hill2001 %A Hill, M. T. %A de Waardt, H. %A Khoe, G. D. %A Dorren, H. J. S. %B Quantum Electronics, IEEE Journal of %D 2001 %K Bragg all-optical amplifiers based bistability cavities characteristics coupled coupling diodes fiber flip-flop flip-flops gratings input inter-laser laser lasers logic minimum mirror model optical power rate-equation reflectivity semiconductor separate set-reset steady-state switching wavelengths %P 405-413-- %T All-optical flip-flop based on coupled laser diodes %U http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=910450&isnumber=19631 %V 37 %X An all-optical set-reset flip-flop is presented that is based on two coupled lasers with separate cavities and lasing at different wavelengths. The lasers are coupled so that lasing in one of the lasers quenches lasing in the other laser. The flip-flop state is determined by the laser that is currently lasing. A rate-equation based model for the flip-flop is developed and used to obtain steady-state characteristics. Important properties of the system, such as the minimum coupling between lasers and the optical power required for switching, are derived from the model. These properties are primarily dependent on the laser mirror reflectivity, the inter-laser coupling, and the power emitted from one of the component lasers, affording the designer great control over the flip-flop properties. The flip-flop is experimentally demonstrated with two lasers constructed from identical semiconductor optical amplifiers (SOAs) and fiber Bragg gratings of different wavelengths. Good agreement between the theory and experiment is obtained. Furthermore, switching over a wide range of input wavelengths is shown; however, increased switching power is required for wavelengths far from the SOA gain peak

@article{Hill2001, abstract = {An all-optical set-reset flip-flop is presented that is based on two coupled lasers with separate cavities and lasing at different wavelengths. The lasers are coupled so that lasing in one of the lasers quenches lasing in the other laser. The flip-flop state is determined by the laser that is currently lasing. A rate-equation based model for the flip-flop is developed and used to obtain steady-state characteristics. Important properties of the system, such as the minimum coupling between lasers and the optical power required for switching, are derived from the model. These properties are primarily dependent on the laser mirror reflectivity, the inter-laser coupling, and the power emitted from one of the component lasers, affording the designer great control over the flip-flop properties. The flip-flop is experimentally demonstrated with two lasers constructed from identical semiconductor optical amplifiers (SOAs) and fiber Bragg gratings of different wavelengths. Good agreement between the theory and experiment is obtained. Furthermore, switching over a wide range of input wavelengths is shown; however, increased switching power is required for wavelengths far from the SOA gain peak}, added-at = {2009-11-19T14:40:48.000+0100}, author = {Hill, M. T. and de Waardt, H. and Khoe, G. D. and Dorren, H. J. S.}, biburl = {https://www.bibsonomy.org/bibtex/2d9acc10be9fdb29fe7dfde845bbc7e93/photonics}, booktitle = {Quantum Electronics, IEEE Journal of}, file = {Hill2001.pdf:Hill2001.pdf:PDF}, interhash = {266e61ff8eb8d2a5c8cd7ffce139b1a5}, intrahash = {d9acc10be9fdb29fe7dfde845bbc7e93}, issn = {0018-9197}, keywords = {Bragg all-optical amplifiers based bistability cavities characteristics coupled coupling diodes fiber flip-flop flip-flops gratings input inter-laser laser lasers logic minimum mirror model optical power rate-equation reflectivity semiconductor separate set-reset steady-state switching wavelengths}, owner = {gianluca}, pages = {405-413--}, refid = {42}, timestamp = {2009-11-19T14:40:56.000+0100}, title = {All-optical flip-flop based on coupled laser diodes}, url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=910450&isnumber=19631}, volume = 37, year = 2001 }