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LARGE OPTICAL CAVITY (LOC) LASER DIODE HAVING QUANTUM WELL OFFSET AND EFFICIENT SINGLE MODE LASER EMISSION ALONG FAST AXIS
LARGE OPTICAL CAVITY (LOC) LASER DIODE HAVING QUANTUM WELL OFFSET AND EFFICIENT SINGLE MODE LASER EMISSION ALONG FAST AXIS
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机译:沿轴具有量子阱偏移和有效单模激光发射的大光腔(LOC)激光二极管
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摘要
Laser diodes are configured to suppress lasing of a first and higher order modes along a fast axis of an optical beam emitted by the laser diode. An optical cavity is defined by a p-side of the laser diode, an n-side of the laser diode, and an active region located between the p- and n-sides. The n-side has an n-waveguide layer forming at least a portion of a waveguide having a quantum well offset towards the p-side. According to some embodiments, double cladding layers out-couple higher order modes. According to other embodiments, double waveguides (e.g., symmetric and asymmetric) reduce gain applied to higher order modes.
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