A semiconductor laser with enhanced luminous efficiency
A luminous efficiency, laser technology, applied in the structure of optical resonant cavity, etc., can solve the problem of limited luminous efficiency of semiconductor laser devices, achieve a strong near-field enhancement effect, realize luminous efficiency, and enhance the effect of radiation recombination
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[0008] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0009] The invention proposes a semiconductor laser with enhanced luminous efficiency. The semiconductor laser with enhanced luminous efficiency includes a laser chip, metal nanoparticles, an anti-reflection optical film on the front cavity surface of the resonator, and a high-reflection optical film on the rear cavity surface of the resonator. The laser chip structure includes a substrate, a lower confinement layer, a lower waveguide layer, a laser active region, an upper waveguide layer, and an upper confinement layer. The metal nanoparticles are noble metal materials such as Ag, Pt, and Au, and the metal nanoparticles are uniformly distributed in the Diode Laser Resonator Cavity Facets. In the following, the laser chip is a GaAs-based semiconductor laser and Au nanoparticles are taken as an example to describe in de...
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