Wavelength tracking of a remote WDM router in a passive optical network
| Autor: | D. T. Mayweather, Leonid G. Kazovsky, N.J. Frigo, M.M. Downs |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Router
Computer science Slew rate Passive optical network Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Distributed Bragg reflector laser Wavelength-division multiplexing Hardware_INTEGRATEDCIRCUITS Electronic engineering Channel spacing Electrical and Electronic Engineering Diffraction grating Tunable laser |
| Zdroj: | IEEE Photonics Technology Letters. 8:1238-1240 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/68.531848 |
| Popis: | We propose, analyze, and demonstrate a simple, robust method which enables a laser to track uncontrolled changes in a remotely located WDM device. As opposed to locking to a wavelength standard, our method locks the wavelength comb of a tunable DBR to a waveguide grating router (200-GHz channel spacing). We have demonstrated tracking at a 1 C/min temperature slew rate without requiring sacrificial channels, a pilot tone, or analog dithering circuitry. We discuss tradeoffs between step size, slew rate, measurement accuracy, and power penalty. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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