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We report the first room temperature CW operation of two dimensional single-mode edge-emitting photonic crystal Bragg lasers. Single-mode lasing with single-lobed, diffraction limited far-fields is obtained for 100mum wide and 550 mum long on-chip devices.
We demonstrate the in-phase coherent coupling of a tapered laser diode array in an external Talbot cavity. The divergence of the central peak is 0.27deg FWHM at 3.1 A with an output power of 931 mW CW.
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