Post-growth fabrication of multiple wavelength DFB laser arrays with precise wavelength spacing

Zanola, Marco and Strain, Michael John and Giuliani, Guido and Sorel, Marc (2012) Post-growth fabrication of multiple wavelength DFB laser arrays with precise wavelength spacing. IEEE Photonics Technology Letters, 24 (12). pp. 1063-1065.

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Abstract

The design and experimental characterization of sidewall-etched gratings in III-V material fabricated with a post-growth technique are presented. The successful demonstration of an array of sidewall-etched distributed feedback lasers shows that this technology allows for a very accurate control of the wavelength spacing and a sidemode suppression ratio up to 60 dB.