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Dense wavelength division multiplexing optical networks use tunable devices such as distributed Bragg reflector laser diodes. These optical sources require a precise wavelength calibration according to the ITU grid, even with aged components. Some specific optical spectrum analyzers are commercially available. Unfortunately, measurements using those systems are generally relatively slow. We present and discuss in this paper a fast spectral measurement system that can easily be implemented in a laser diode package. [ABSTRACT FROM AUTHOR]

Presents a study on the analytical formulation for distortions in distributed feedback laser diodes, with reference to CATV lasers. Importance of low-distortion and low-chirp distributed feedback laser in subcarrier multiplexed AM-VSB transmissions systems for CATV; Details on the CATV frequency band; Findings of the study.

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