1. Surface emitting laser and optical coherence tomography apparatus

    Surface emitting laser and optical coherence tomography apparatus

    In order to provide a wavelength tunable surface emitting laser capable of improving a wavelength tuning efficiency, provided is a surface emitting laser, including: a first reflector; a semiconductor cavity including an active layer; and a second reflector, the first reflector, the semiconductor cavity, and the second reflector being formed in the stated order, a gap portion being formed between the first reflector and a semiconductor layer, a cavity length being tunable, in which the surface emitting laser has a high reflectivity structure formed between the gap portion and the semiconductor cavity, and an expression of "(.lamda./2).times.m ...

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