Vertical resonant cavity surface emitting laser and manufacturing method thereof
A manufacturing method and resonant cavity technology, applied in lasers, laser components, semiconductor lasers, etc., can solve problems such as unfavorable high-speed component operation, high-impedance mode instability, etc.
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[0029] Relevant technical content of the present invention, detailed description, and effect, are now described as follows in conjunction with accompanying drawing:.
[0030] Such as Figure 2A As shown, a vertical resonator surface-emitting laser of the present invention mainly includes a substrate 21 and an epitaxial stack 22 formed on the substrate 21 . The epitaxial stack 22 can be based on compound semiconductors of AlGaAs / GaAs system, but not limited thereto, and can also be material systems such as AlN / GaN / InGaN in actual implementation, and can be determined according to the wavelength of the laser required. The wavelength is not limited, and it can be infrared light, visible light or ultraviolet light. To describe its structure in detail, the epitaxial stack 22 sequentially includes a first Bragg reflector 221, a first spacer layer 222, an active layer 223, and a second spacer layer formed on the substrate 21 from bottom to top. 224, and a second Bragg reflector 225...
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