Pigtail side pump coupling device for erbium-doped double-cladding semiconductor laser device

Abstract

The invention discloses a pigtail side pump coupling device for an erbium-doped double-cladding semiconductor laser device. The device includes a laser shooting cylinder, an angle adjusting indented ring, a square flange, a heat radiation seat, a semi-conductive laser device, a trapezoidal splint and a pump coupler. The device is advantaged in that the semi-conductive laser device is in matching with the pump coupler to form a beam set and a dense end, an inner cladding of the double-cladding light is transmitted along the axial direction of the fiber, the anti-reflection effect of the pump light is formed by matching an aligned convex mirror capsule containing edge optical glue of a flat capsule light collector, a refractive index is further enhanced to reduce reflection loss at an interface, a high-efficiency pump light total reflection focusing phenomenon is formed, in combination with the erbium-doped structure, the large-mode field area and quantum efficiency of the semi-conductive laser device are improved, the enhanced pump light action of the gain medium is achieved, thyristor permeability of semiconductors is improved, reflection interference is prevented, and the refracting end focusing effect for extending a terminal range is formed.

Description

technical field [0001] The invention relates to a tail fiber side pump coupling device of an ytterbium-doped double-clad semiconductor laser, which belongs to the field of semiconductors. Background technique [0002] Optical fiber is a necessary high-efficiency optical and electrical connection equipment for data networks and smart furniture, and the terminal at the end of the optical fiber needs a coupling circuit to connect the circuit board and the semiconductor to form the effect of concentrated output light or centralized collection of electrical signals, so that the semiconductor can use lasers In the medium time, it can be combined with optical fiber to form the increase of semiconductor light transmission. The shortcomings of the current technology that need to be optimized are: [0003] The beamline concentration of conventional semiconductor lasers is low, and the processing of light guide coupling is simple, which will cause the coupling beamline to be uncorrecte...

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a pigtailed fiber side pumping coupling device for an ytterbium-doped double-clad semiconductor laser, so as to solve the problem of low beamline concentration of conventional semiconductor lasers and simple processing of light guide coupling. It will cause the coupling beamline but not correct the deflected line-end light source, causing the light to scatter, unnecessary irradiation on the inner wall of the path, causing diffuse reflection to interfere with the laser effect, and causing the laser to shrink into the irradiation range due to the interference of deflected light in the later stage. The situation will cause the semiconductor gate in the laser to be disordered, resulting in the phenomenon of dim light source offset by internal reflection, which will greatly halve the use efficiency of the equipment, affect the calibration reference line of the interior decoration of construction personnel, and cause a small angle bend to the far light end of the laser. Make the calibration deviate and skew, resulting in labor-intensive later renovation and correction problems

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