| Autor: |
Ahmed M., Bakry A., Altuwirqi R., Alghamdi M. S., Koyama F. |
| Jazyk: |
angličtina |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Journal of the European Optical Society-Rapid Publications, Vol 8, p 13064 (2013) |
| Druh dokumentu: |
article |
| ISSN: |
1990-2573 |
| DOI: |
10.2971/jeos.2013.13064 |
| Popis: |
We characterize the intensity noise associated with the ultra-high frequency direct modulation of semiconductor lasers under strong optical feedback over a millimeter-wave frequency passband between 54.5 and 56.5 GHz. Enhancement of the modulation response over this millimeter wave band due to optical feedback is clearly shown by time-delay rate equation analysis fully involving the strong optical feedback effect. The contribution of the relative intensity noise of the laser to the noise figure of an ultra-high speed radio over fiber link is evaluated. We show that subjecting the laser diode to strong feedback improves the noise figure of a 55.8-GHz radio over fiber link nearly by 20 dB in the regime of small-signal modulation and 10 dB under large-signal modulation. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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