Surface emitting device
A surface light-emitting element and spectrum technology, applied in electrical components, laser components, lasers, etc., can solve the problems of inability to obtain mode gain and weakening of light confinement, and achieve the effect of increasing light output and increasing mode gain
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[0034] Hereinafter, as an embodiment of the present invention, a vertical cavity surface emitting laser element (hereinafter referred to as a VCSEL) will be described in detail with reference to the drawings.
[0035] First, use figure 1 , and the first embodiment will be described. The VCSEL 1 according to the first embodiment includes a lower reflective layer 4, a first barrier layer 9, a first sub active layer 7 (second active layer), a first cladding layer 11, and a main A stacked structure of active layer 6 (first active layer), second cladding layer 12 , second sub-active layer 8 (second active layer), second barrier layer 10 , and upper reflective layer 5 . The lower reflective layer 4, the first barrier layer 9, the first sub-active layer 7, the first cladding layer 11, the main active layer 6, the second cladding layer 12, the second sub-active layer 8, and the second barrier layer 10 and the upper reflective layer 5, forming an optical resonator 3. However, a curr...
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