Distributed feedback diode laser

Details Distributed feedback diode laser Distributed feedback diode laser

H - Electricity

01

S

345/33

H01S 5/183 (2006.01)

Patent

CA 1058308

ABSTRACT OF THE INVENTION A laser having layers of a first material inter- leaved with layers of a second material with the first material having a different index of refraction and band- gap than those of the second material. The thicknesses of the layers of the first and second materials satisfy the relationship t = Image where m is the laser mode and n is the index of refraction of the material, such that the right and left going waves of the light produced by the layers of the first material when the laser is pumped are coupled and reinforced in a coherent manner by the layers of the second material such that reflections from the second material are in phase, thus allowing laser operation in the absence of discrete end mirrors.

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