Demultiplexers for ultranarrow channel spacing based on Mach-Zehnders and ring resonators
Novel demultiplexer configurations based on concatenated Mach-Zehnders and a ring resonator are presented. These new devices exhibit high channel isolation, flexibility, no loss, and megahertz-adjustable full width at half maximum (FWHM) suitable for narrow channel spacing. General design equations...
| Autores Principales: | Vázquez, Carmen, Vargas, Salvador, Sánchez Pena, José Manuel, Gonzalo, Ana Belen |
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| Formato: | Artículo |
| Idioma: | Inglés Inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: |
https://www.spiedigitallibrary.org/journals/Optical-Engineering/volume-43/issue-9/0000/Demultiplexers-for-ultranarrow-channel-spacing-based-on-Mach-Zehnders-and/10.1117/1.1778175.short http://ridda2.utp.ac.pa/handle/123456789/4904 http://ridda2.utp.ac.pa/handle/123456789/4904 |
| Sumario: |
Novel demultiplexer configurations based on concatenated Mach-Zehnders and a ring resonator are presented. These new devices exhibit high channel isolation, flexibility, no loss, and megahertz-adjustable full width at half maximum (FWHM) suitable for narrow channel spacing. General design equations are described. Examples of a 1×4-2.5-GHz demultiplexer and a 2.5-GHz/5-GHz interleaver are reported. These designs have channel isolation >40 dB, 128 MHz FWHM, 10 dB gain. These devices can be conveniently implemented using the silicon or InP integrated optic technologies. A fabrication tolerance analysis is carried out. The worst figures for the previous designs are 220 MHz FWHM, 23-dB channel isolation, and 5.7-dB gain and can be readjusted with a gain control. |
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