Khalfin, V. B., Arnold, J.M. and Marsh, J. H. (1995) A theoretical model of synchronization of a mode-locked semiconductor laser with an external pulse stream. IEEE Journal of Selected Topics in Quantum Electronics, 1(2), pp. 523-527. (doi: 10.1109/2944.401237)
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Abstract
The frequency range over which a semiconductor laser will synchronize to an external pulse stream is analyzed. The laser is taken to be fully integrated, consisting of an amplifier, a passive waveguide and a saturable absorber. The model is of the lumped parameter type and, in particular, includes the effects of large signal optical pulses, absorption in the passive waveguide and gain dispersion and self-phase modulation in the amplifier. The situation in which the external signal illuminates the saturable absorber without being coupled optically into the laser cavity is analyzed. It is shown that, for synchronization to occur, the external signal must be of comparable intensity to that of the circulating pulse. The range over which locking will occur lies between 0.05% and 0.2% of the mode-locking frequency for external signals of amplitude 0.1 to 0.5 times that of the circulating pulse. It is concluded that integrated mode-locked semiconductor lasers could be used for clock extraction in communication systems.
| Item Type: | Articles |
|---|---|
| Additional Information: | This work was supported by the Visiting Research Fellowship of the Science and Engineering Research Council, UK, under Grant GR/H88008. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Marsh, Professor John and Arnold, Professor John |
| Authors: | Khalfin, V. B., Arnold, J.M., and Marsh, J. H. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | IEEE Journal of Selected Topics in Quantum Electronics |
| Publisher: | Institute of Electrical and Electronics Engineers |
| ISSN: | 1077-260X |
| ISSN (Online): | 1558-4542 |
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