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Multi-λ ridge waveguide gain-coupled DFB laser array

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3 Author(s)
Li, G.P. ; Bell-Northern Res., Ottawa, Ont., Canada ; Makino, T. ; Wu, C.-M.

Multi-wavelength gain-coupled quantum well DFB laser array has been fabricated on an InP substrate by simply varying the ridge waveguide width of the element lasers. Owing to the gain-coupling effect, seven singlemode lasing wavelengths around 1.55 μm with ~2 nm spacing were obtained simultaneously. The lasers had low threshold currents and small beam divergence

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Lightwave Technology, Journal of  (Volume:13 ,  Issue: 2 )