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Título del libro: Cce 2012 - 2012 9th International Conference On Electrical Engineering, Computing Science And Automatic Control
Título del capítulo: Automatic classification of the frequency chirp in directly modulated lasers using cross-correlation

Autores UNAM:
RAMON GUTIERREZ CASTREJON;
Autores externos:
Idioma:
Inglés
Año de publicación:
2012
Palabras clave:

adiabatic; Directly modulated lasers; Fiber dispersion; Frequency chirp; simulation; Algorithms; Automation; Computer simulation; Control; Optical correlation; Process control; Semiconductor lasers; Transients

Resumen:

An automatic method to discriminate between adiabatic and transient-chirp dominated directly modulated semiconductor lasers (DML), useful to classify telecommunications transmitters, is presented. It is based on calculating the cross-correlation between the optical power and chirp waveforms of the device under test and the use of a decision threshold. The accuracy of the algorithm is demonstrated using simulated signals obtained from a well-tested laser model complemented with experimentally-derived parameters for several real lasers. By modifying the confinement factor, the laser chirp behavior can gradually be transformed from transient to adiabatic, thus enabling the validation of the proposed algorithm. Correct classification results are reported. Due to its flexibility, ease of implementation, simplicity and accuracy, the classification algorithm here put forward, represents a practical tool for testing and fabrication of DMLs. © 2012 IEEE.

Entidades citadas de la UNAM:
Fuente:


ISBN:
9781467321686
Editorial:

Tipo de producto:
Conference Paper



DOI:
10.1109/ICEEE.2012.6421211