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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.
The characteristics of the longitudinal mode hops of 1060-nm high-power DBR lasers are studied. We demonstrate a return-to-zero technique for eliminating large mode hops and wavelength hysteresis caused by the photon-induced gain saturation effect.
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