Effects of the linewidth enhancement factor on the microwave linewidth of the period-one oscillations of optically injected semiconductor lasers
We investigate the microwave linewidth of the period-one (P1) nonlinear dynamics of an optically injected semiconductor laser as a function of the linewidth enhancement factor. Under proper conditions of optical injection, the destabilizing effect of a large value of the linewidth enhancement factor...
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| Published in | Optics letters Vol. 47; no. 5; p. 1166 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
United States
01.03.2022
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| Online Access | Get more information |
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| Summary: | We investigate the microwave linewidth of the period-one (P1) nonlinear dynamics of an optically injected semiconductor laser as a function of the linewidth enhancement factor. Under proper conditions of optical injection, the destabilizing effect of a large value of the linewidth enhancement factor of the injected semiconductor laser is found to be unexpectedly suppressed in the P1 oscillation of the laser, thus resulting in a narrow P1 linewidth equal to that generated by a laser of a small linewidth enhancement factor. By properly choosing the operating point, P1 oscillations with microwave linewidths that are an order of magnitude narrower than the free-running optical linewidths of the master and slave lasers are observed. |
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| ISSN: | 1539-4794 |
| DOI: | 10.1364/OL.451366 |