Stolarz, P.M., Mezosi, G., Strain, M.J., Bryce, A.C. and Sorel, M. (2012) Highly-sensitive sonogram for assessment of chirp in semiconductor mode-locked lasers. IEEE Journal of Quantum Electronics, 48(8), pp. 995-1003. (doi: 10.1109/JQE.2012.2196849)
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Abstract
We report on the detailed characterization of ultrashort pulses emitted from a 1.5- AlGaInAs/InP semiconductor passively mode-locked laser, operating at a repetition frequency of 35 GHz. Both the temporal and phase profiles of the pulses are retrieved using a sonogram technique that utilizes a highly-sensitive two-photon absorption waveguide detector. The system enables full characterization of pulses with energy as low as 10 fJ and peak power level of 5 mW, which is only inaccessible by a limited number of high-sensitivity measurement approaches. We show that the pulses exhibit a prevailing positive linear chirp across a wide range of biasing conditions. Its high sensitivity to the gain section current proves the dominant contribution of the gain conditions to the group delay characteristics of the emitted pulses.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Mezosi, Mr Gabor and Sorel, Professor Marc and Bryce, Prof Ann and Stolarz, Mr Piotr and Strain, Dr Michael |
| Authors: | Stolarz, P.M., Mezosi, G., Strain, M.J., Bryce, A.C., and Sorel, M. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | IEEE Journal of Quantum Electronics |
| Publisher: | IEEE |
| ISSN: | 0018-9197 |
| Published Online: | 27 April 2012 |
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