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http://cio.repositorioinstitucional.mx/jspui/handle/1002/364| SPECTRAL AND TEMPORAL DYNAMICS IN ACTIVELY Q-SWITCHED ERBIUM-DOPED FIBER LASERS | |
| Josue Minguela | |
| Yuri Barmenkov ALEXANDER KIRIYANOV | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| ERBIUM-DOPED FIBER LASER, ACTIVE Q-SWITCHING, TEMPORAL DYNAMICS, SPECTRAL DYNAMICS, LASER NOISE, PHOTON STATISTICS, NONLINEAR EFFECTS, SUPERCONTINUUM GENERATION | |
| "In the present dissertation work, the spectral and temporal features of actively Q-switched erbium-doped fiber lasers are reported. These features were investigated for two common laser configurations: for the linear Fabry-Pérot cavity with a pair of fiber Bragg gratings as reflectors, and for onedirectional ring cavity without spectrally selective elements. It is shown that in both configurations the spectral width of sub-pulses, forming a Q-switch pulse, depends on the sub-pulse number, the spectrum of the most powerful sub-pulse is much broader than those of the rest, less powerful ones. In the case of the ring laser, the optical spectra of sub-pulses shift to the Stokes side while increasing a sub-pulse’s number. Possible reasons for such laser spectral dynamics will be discussed. We also report properties of the intensity noise of actively Q-switched erbium-doped fiber lasers implemented in these two configurations. We demonstrate that the types of photon noise statistics of Q-switched pulses in these two lasers are dramatically different (Poissonian or Bose-Einstein), revealing a crucial role of the cavity’s spectral selectivity. To determine the type of experimental statistics in terms of photon noise distribution, a detailed modeling is performed. Finally, the noisy Qswitched pulses are employed as a pump for generating broadband supercontinuum in telecom fiber, which affects their noise statistics." | |
| 2017-12 | |
| Tesis de doctorado | |
| Inglés | |
| León, Guanajuato | |
| Público en general | |
| Minguela Gallardo, (2017). "Spectral and temporal dynamics in active Q-switched Erbium-doped Fiber lasers". Tesis de Doctorado en Ciencias (Óptica). Centro de Investigaciones en Óptica, A.C. León, Guanajuato. 88 pp. | |
| ÓPTICA | |
| Aparece en las colecciones: | DOCTORADO EN CIENCIAS (ÓPTICA) |
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| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| 17277.pdf | Texto completo/Full text | 3.49 MB | Adobe PDF | Visualizar/Abrir |