CN203225450U

CN203225450U - Large power fiber output semiconductor laser

Info

Publication number: CN203225450U
Application number: CN 201320214062
Authority: CN
Inventors: 段开椋
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-24
Filing date: 2013-04-24
Publication date: 2013-10-02
Anticipated expiration: 2023-04-24

Abstract

The utility model discloses a large-power fiber output semiconductor laser device, which comprises a power supply control module, a fiber combiner and at least semiconductor laser output units. The power supply control module excites and controls each semiconductor laser output unit. The two-channel semiconductor laser output units are connected to the fiber combiner respectively and output laser through the fiber combiner. The large-power fiber output semiconductor laser device discloses a semiconductor laser device realizing large power fiber output.

Description

The large-power optical fiber output semiconductor laser

Technical field

The utility model belongs to optical field, relates to a kind of semiconductor laser, relates in particular to a kind of large-power optical fiber output semiconductor laser.

Background technology

High power semiconductor lasers has that volume is little, in light weight, reliability is high, electrical-optical conversion efficiency height, low in energy consumption, simple in structure, cheap, use distinct advantages such as safety, nowadays obtained in fields such as industrial processes, medical engineering, modern national defenses using widely.

The operation principle of semiconductor laser LD is the mode by electric excitation, utilizes semiconductor substance can band-to-band transition luminous, as speculum, forms resonant cavity with the cleavage surface of semiconductor crystal, by light generation,

Feedback, the radiation that produces light is amplified, output laser.For realizing more powerful laser output, need usually semiconductor laser is formed array format LDA.But because the high-power laser beams angle of departure of semiconductor laser array LDA output is excessive, beam quality is relatively poor, is not easy to direct application.So in actual applications,

Need utilize the light beam of micro-optical systems noise spectra of semiconductor lasers array LDA to collimate, shaping, again the light beam coupling after the shaping is exported in optical fiber.This mode has fundamentally been improved the output beam of semiconductor laser on the one hand, on the other hand, because the optical fiber softness is flexible, has realized any direction output of semiconductor laser beam, thereby improved the practical ranges of semiconductor laser greatly.

As shown in Figure 1, the large-power optical fiber output semiconductor laser generally is made up of four parts: energy supply control module a, semiconductor laser array LDA module b, fiber coupling module c, output optical fibre d.Energy supply control module a noise spectra of semiconductor lasers array LDA module b encourages, and realizes the control to laser output.The laser beam of output carries out shaping by fiber coupling module c, finally be coupled among the output optical fibre d, thereby the optical fiber of realizing semiconductor laser is exported.

There is following shortcoming in the optical fibre output semiconductor laser of said structure: the micro-optical systems manufacture difficulty among the fiber coupling module c is excessive, and technology realizes difficulty, the cost height, and the power output of realization is less relatively.Particularly when the more high-power output of thousands of watts of needs, when semiconductor laser array LDA was comparatively complicated, among its direct-coupled optical fiber, technical more difficult, cost was higher.

The utility model content

In order to solve the above-mentioned technical problem that exists in the background technology, the utility model provides a kind of semiconductor laser of realizing than large-power optical fiber output.

Technical solution of the present utility model is: the utility model provides a kind of large-power optical fiber output semiconductor laser, and its special character is: described large-power optical fiber output semiconductor laser comprises energy supply control module, optical-fiber bundling device and two-way semiconductor laser output unit at least; Described energy supply control module excitation is also controlled each semiconductor laser output unit; The described common incoming fiber optic bundling device of every road semiconductor laser output unit and by optical-fiber bundling device output laser.

Above-mentioned semiconductor laser output unit comprises optical fibre output semiconductor laser module, fiber coupling system and output optical fibre; Described energy supply control module encourages or controls each optical fibre output semiconductor laser module simultaneously; Described optical fibre output semiconductor laser module inserts output optical fibre by fiber coupling system; Described output optical fibre incoming fiber optic bundling device.

The utility model has the advantages that:

Large-power optical fiber output semiconductor laser provided by the utility model, by utilizing optical-fiber bundling device that the middle low power optical fibre output semiconductor laser is coupled into than the large-power optical fiber output semiconductor laser, in the time of can effectively reducing in the face of complicated semiconductor laser array LDA, the making difficulty of micro-optical systems, reduction improves stability and the reliability of Optical Maser System than the development and production cost of high power light beam output semiconductor laser.The utility model can be avoided when the array of semiconductor laser array LDA is comparatively complicated, the making difficulty of micro-optical systems, change technology formerly the output laser of semiconductor laser array LDA is directly coupled to the mode of optical fiber, realize more powerful optical fiber output.

Description of drawings

Fig. 1 is the structural representation of existing large-power optical fiber output semiconductor laser;

Fig. 2 is the structural representation of large-power optical fiber output semiconductor laser provided by the utility model.

Embodiment

Referring to Fig. 2, the utility model provides a kind of novel high-power optical fibre output semiconductor laser, and this large-power optical fiber output semiconductor laser comprises energy supply control module, optical-fiber bundling device and two-way semiconductor laser output unit at least; The energy supply control module excitation is also controlled each semiconductor laser output unit; The common incoming fiber optic bundling device of each semiconductor laser output unit and by optical-fiber bundling device output laser.

The semiconductor laser output unit comprises optical fibre output semiconductor laser module, fiber coupling system and output optical fibre; The energy supply control module excitation is also controlled each optical fibre output semiconductor laser module; Optical fibre output semiconductor laser module inserts output optical fibre by fiber coupling system; Output optical fibre incoming fiber optic bundling device.

Operation principle of the present utility model is: the utility model merges the output laser of middle low power optical fibre output semiconductor laser by utilizing optical-fiber bundling device, realizes than the large-power optical fiber output semiconductor laser.Among Fig. 2, a is energy supply control module, b1, b2 ... bn is n middle low power optical fibre output semiconductor laser module, c1, c2 ... cn is the fiber coupling system of n middle low power optical fibre output semiconductor laser module correspondence, d1, d2 ... dn is the output optical fibre of n middle low power optical fibre output semiconductor laser, and e is optical-fiber bundling device.N middle low power optical fibre output semiconductor laser produces laser by energy supply control module a excitation back, the laser that produces is through separately fiber coupling system c1, c2 ... cn coupling back is by optical fiber d1, d2 ... dn output, optical-fiber bundling device e is the nx1 structure, it is with n optical fiber d1, d2 ... in output laser coupled to an optical fiber among the dn, thereby the laser fiber of having realized high power semiconductor lasers is exported.

Claims

1. large-power optical fiber output semiconductor laser is characterized in that: described large-power optical fiber output semiconductor laser comprises energy supply control module, optical-fiber bundling device and two-way semiconductor laser output unit at least; Described energy supply control module excitation is also controlled each semiconductor laser output unit; The described common incoming fiber optic bundling device of every road semiconductor laser output unit and by optical-fiber bundling device output laser.

2. large-power optical fiber output semiconductor laser according to claim 1, it is characterized in that: described semiconductor laser output unit comprises optical fibre output semiconductor laser module, fiber coupling system and output optical fibre; Described energy supply control module encourages or controls each optical fibre output semiconductor laser module simultaneously; Described optical fibre output semiconductor laser module inserts output optical fibre by fiber coupling system; Described output optical fibre incoming fiber optic bundling device.