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Sector disk resonator.
Photographs of the samples: (A) disk laser, (B) half-disk laser, and (C) quarter-disk laser. Arrows marked the trench position.
Emission spectra of the lasers.
Side-view IR image of the half-disk laser emission. , distance between spots: .
Light-current characteristics of the half-disk (upper curve), quarter-disk (middle curve), and full-disk lasers measured at 10% duty cycle.
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