High-power, manufacturable sampled grating distributed bragg...

H - Electricity – 01 – S

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H01S 5/125 (2006.01) H01S 5/0625 (2006.01) H01S 5/12 (2006.01) H01S 5/34 (2006.01)

Patent

CA 2410964

A tunable laser is disclosed including a gain section for creating a light beam over a bandwidth, a phase section for controlling the light beam around a center frequency of the bandwidth, a waveguide for guiding and reflecting the light beam in a cavity including a relatively low energy bandgap separate- confinement-heterostructure (SCH), a front mirror bounding an end of the cavity and a back mirror bounding an opposite end of the cavity wherein gain is provided by at least one of the group comprising the phase section, the front mirror and the back mirror.

L'invention concerne un laser réglable comprenant une unité de gain destinée à produire un faisceau lumineux sur une largeur de bande, une unité de phase servant à réguler ce faisceau lumineux autour d'une fréquence centrale de la largeur de bande, un guide d'ondes permettant de guider et de réfléchir le faisceau lumineux dans une cavité comprenant une hétérostructure à confinement séparé (SCH) dotée d'une bande interdite à énergie relativement faible, un miroir avant définissant une extrémité de la cavité et un miroir arrière définissant une extrémité opposée de la cavité, le gain étant réalisé par au moins un groupe comprenant l'unité de phase, le miroir avant et le miroir arrière.

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