CN209282608U - A kind of light beam closes beam lens, device and Optical Maser System - Google Patents

Abstract

The utility model proposes a kind of light beams to close beam lens, device and Optical Maser System, and it is with certain thickness optical lens that the light beam, which closes beam lens,；The plane of incidence of the optical lens includes annular transparent surface and the superpositing unit array in the middle part of aforementioned toroidal transparent surface, and the superpositing unit array is made of multiple micro- reflector elements；The exit facet of the optical lens includes toroidal reflective surface corresponding with aforementioned toroidal transparent surface and positioned at the output optical zone of annular reflection Middle face, the toroidal reflective surface is in be greater than 0 ° and the angle less than 90 ° with annular transparent surface, so that multiple light beams, which enter the toroidal reflective surface first reflection through exit facet to superpositing unit array from the annular transparent surface of the plane of incidence, is overlapped conjunction beam back reflection to the outgoing of the output optical zone of exit facet.The utility model solves the problems, such as that space combined beam light axis is not overlapped, and improves beam quality.

Description

A kind of light beam closes beam lens, device and Optical Maser System

Technical field

The utility model belongs to semiconductor packages field, and specially a kind of light beam closes beam lens, device and application The Optical Maser System of light beam conjunction beam lens.

Background technique

Semiconductor laser has the advantages that small in size, light-weight, high reliablity, long service life, low in energy consumption, at present It is widely used in the every field of national economy, but the popularization and application of current semiconductor laser are by its beam quality It restricts, so the beam quality, brightness and the power that improve semiconductor laser are instantly important research direction.Swash combiner skill Art is quickly grown in recent years, it is the process for improving beam quality, increasing output power, improving power density.Laser closes Beam technology is widely used in the fields such as laser processing, high-power optical-fiber coupling product, laser medicine.

It is a kind of commonly sharp combiner method that beam is closed in space, and space closes beam and refers specifically to stack in multiple laser space, because The conjunction beam of Shu Bingfei truly is closed in this space, its essence is that light source has been done to the compact processing of optical shaping solid matter, each light source Optical axis is still independent optical axis, and optical path is not overlapped, and causes size after light beam solid matter still larger, and space closes beam and to increase the same of power When reduce beam quality.

Utility model content

To solve the above-mentioned problems, the utility model proposes a kind of light beams to close beam lens, device and Optical Maser System, It solves the problems, such as that space combined beam light axis is not overlapped, improves beam quality.Specific technical solution are as follows:

A kind of light beam conjunction beam lens, have certain thickness optical lens；The plane of incidence of the optical lens Superpositing unit array including annular transparent surface and in the middle part of aforementioned toroidal transparent surface, the superpositing unit array is by multiple Micro- reflector element composition；The exit facet of the optical lens includes toroidal reflective surface corresponding with aforementioned toroidal transparent surface and position In the output optical zone of annular reflection Middle face, the toroidal reflective surface and annular transparent surface are in be greater than 0 ° and the angle less than 90 °, are made It obtains multiple light beams and enters the toroidal reflective surface first reflection through exit facet to superpositing unit battle array from the annular transparent surface of the plane of incidence Column, which are overlapped, closes beam back reflection to the outgoing of the output optical zone of exit facet.

The output optical zone of the exit facet is plane or convex surface.

The toroidal reflective surface of the exit facet is tapered, so that the light beam from plane of incidence incidence reflexes to superpositing unit array On.

Micro- reflector element is conical reflecting surface unit.

The arrangement form of micro- reflector element is that peripheral annular arranged tangential or polygon peripheral annular arrange.

The superpositing unit array is that planar array is distributed or array of convexities is distributed or concave surface array distribution.

A kind of light beam beam merging apparatus, including multiple light beams close beam lens, and the multiple light beam closes the arrangement of beam lens are as follows: in light On the beam direction of propagation, the incident light source that the light beam of rear stage closes beam lens is that previous stage closes beam emergent light, and it is saturating that light beams at different levels close beam The number of mirror is successively arranged at Geometric Sequence.

A kind of Optical Maser System, multiple laser light sources and above-mentioned light beam including annular array close beam lens；It is described more A laser light source arrangement is matched with the annular transparent surface that light beam closes beam lens.

Exit direction of the laser beam that the laser light source is issued after toroidal reflective surface reflects is superpositing unit battle array The tangential direction of the adjacent micro- reflector element of column outmost turns, and there are the interlaced of micro- reflector element on laser emitting direction.

The wavelength of the multiple laser light source is different.

The utility model has the beneficial effects that

The utility model proposes light beam close beam lens and solve space combined beam light axis non-overlapping problem, it is available uniformly The combined beam light of high quality, furthermore to light source, power, wavelength, the requirement of polarization characteristic non-selectivity can be carried out closing beam processing, be answered Occasion is extensive.

Detailed description of the invention

Fig. 1 is that the light beam of the utility model closes the structural schematic diagram of beam lens.

Fig. 2 is one embodiment that light beam closes beam lens.

Fig. 3 is the structural schematic diagram of superpositing unit array.

Fig. 4 is the structural schematic diagram of light beam beam merging apparatus

Fig. 5 is the schematic diagram of the utility model Optical Maser System.

Drawing reference numeral explanation: 1- light beam conjunction beam lens, 2- annular transparent surface, 3- superpositing unit array, 4- toroidal reflective surface, The output optical zone 5-, 6- light beam, 7- laser light source, the micro- reflector element of 301-.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

Fig. 1 is that the light beam of the utility model closes the structural schematic diagram of beam lens.A kind of light beam conjunction beam lens, specially have Certain thickness optical lens；The plane of incidence of the optical lens is including annular transparent surface 2 and is located at aforementioned toroidal transparent surface The superpositing unit array 3 at middle part.Specifically, annular transparent surface is vertical with 6 incident direction of light beam, arrow is expressed as light beam in Fig. 1 The direction of propagation.

The exit facet of the optical lens include toroidal reflective surface 4 corresponding with aforementioned toroidal transparent surface 2 and be located at ring The output optical zone 5 at 4 middle part of shape reflecting surface, so that multiple light beams 6 enter the annular through exit facet instead from the annular transparent surface 2 of the plane of incidence It penetrates 4 first reflection of face to superpositing unit array 3 and is overlapped conjunction beam back reflection to the outgoing of the output optical zone of exit facet 5.

The toroidal reflective surface 4 and ring-incidence face 2 are at an angle, and specific angle is greater than 0 ° and less than 90 ° Angle, so that can be reflexed on superpositing unit array 3 from the light beam 6 of plane of incidence incidence.Specifically, the exit facet annular reflection Face 4 is taper.

The toroidal reflective surface and annular transmission plane are corresponding, both be interpreted as matching dimensionally, specially the two Width should be greater than beam diameter, guarantee that whole light beams pass through above-mentioned annular transmission plane and reflect in toroidal reflective surface.

Specifically, the output optical zone 5 of the exit facet is plane or convex surface, Fig. 2 is the implementation that output optical zone 5 is convex surface Example, multiple light beams are assembled after closing beam in convex surface output optical zone 5, and higher energy density is realized.

Fig. 3 is the structural schematic diagram of superpositing unit array, and the superpositing unit array is by multiple 301 groups of micro- reflector elements At；Specifically, micro- reflector element 301 is conical reflecting surface unit.

Specifically, the arrangement form of micro- reflector element 301 is circular arrangement or polygonal arrangement.Shown circular arrangement Form is that micro- reflector element is arranged in the circle with Beam matching；Polygonal arrangement form is as shown in Figure 3 and Figure 5, and micro- reflection is single First 301 solid matters at polygon, preferably regular polygon, aforementioned solid matter it is to be understood that close-packed arrays between micro- reflector element 301, Micro- reflector element of outmost turns is arranged in the shape of polygon, and the inside of the polygon is uniformly filled out by micro- reflector element solid matter It is full, so that light beam is uniformly superimposed after being reflected by superpositing unit array closes beam.

The superpositing unit array 3 is that planar array is distributed or array of convexities is distributed or concave surface array distribution.

A kind of light beam beam merging apparatus can be used in the repeatedly application of the power expansion of conjunction beam.As shown in figure 4, the light beam closes Bundle device includes that multiple light beams close beam lens 1, and the multiple light beam, which closes beam lens, can be divided into multiple stage arrangement, specific arranging rule Are as follows: in direction of beam propagation, the incident light source that the light beam of rear stage closes beam lens is that previous stage closes beam emergent light, light beams at different levels The number for closing beam lens is successively arranged at Geometric Sequence.It is to be understood that from the light beam for generating final combined beam light closes beam lens, The number that light beam at different levels closes beam lens 1 is followed successively by 1, and 2,4 equal to increase according to Geometric Sequence, with adapt to be multiplied Light source.

A kind of Optical Maser System, multiple laser light sources 7 and the light beam including annular array close beam lens 1.Such as Fig. 5 Shown, the multiple arrangement of laser light source 7 is matched with the annular transparent surface that light beam closes beam lens 1, specifically, laser light source is sent out Exit direction of the laser beam out after toroidal reflective surface reflects is the adjacent micro- reflector element of superpositing unit array outmost turns Tangential direction, and there are the interlaced of micro- reflector element on laser emitting direction so that laser beam will not only be irradiated in it is micro- Gap that reflector element connects and lead to light leakage.

Specifically, the wavelength of the multiple laser light source is different.

Claims (10)

1. a kind of light beam closes beam lens, it is characterised in that: specially have certain thickness optical lens；

The plane of incidence of the optical lens includes annular transparent surface and the superpositing unit battle array in the middle part of aforementioned toroidal transparent surface Column, the superpositing unit array are made of multiple micro- reflector elements；

The exit facet of the optical lens include toroidal reflective surface corresponding with aforementioned toroidal transparent surface and be located at annular reflection The output optical zone of Middle face, the toroidal reflective surface and annular transparent surface are in be greater than 0 ° and the angle less than 90 °, so that multiple light beams Enter the toroidal reflective surface first reflection through exit facet to superpositing unit array from the annular transparent surface of the plane of incidence to be overlapped Beam back reflection to the output optical zone of exit facet is closed to be emitted.

2. light beam according to claim 1 closes beam lens, it is characterised in that: the output optical zone of the exit facet be plane or Convex surface.

3. light beam according to claim 1 closes beam lens, it is characterised in that: the toroidal reflective surface of the exit facet is in cone Shape, so that being reflexed on superpositing unit array from the light beam of plane of incidence incidence.

4. light beam according to claim 1 closes beam lens, it is characterised in that: micro- reflector element is conical reflecting surface Unit.

5. light beam according to claim 4 closes beam lens, it is characterised in that: the arrangement form of micro- reflector element is circle All annular arranged tangentials or the arrangement of polygon peripheral annular.

6. light beam according to claim 1 closes beam lens, it is characterised in that: the superpositing unit array is planar array point Cloth or array of convexities distribution or concave surface array distribution.

7. a kind of light beam beam merging apparatus, it is characterised in that: beam lens are closed including light beam described in one of multiple claim 1-6, The multiple light beam closes the arrangement of beam lens are as follows: in direction of beam propagation, the incident light source that the light beam of rear stage closes beam lens is Previous stage closes beam emergent light, and the number that light beams at different levels close beam lens is successively arranged at Geometric Sequence.

8. a kind of Optical Maser System, it is characterised in that: one of multiple laser light sources and claim 1-6 including annular array The light beam closes beam lens；The multiple laser light source arrangement is matched with the annular transparent surface that light beam closes beam lens.

9. Optical Maser System according to claim 8, it is characterised in that: the laser beam warp that the laser light source is issued Exit direction after toroidal reflective surface reflection is the tangential direction of the adjacent micro- reflector element of superpositing unit array outmost turns, and laser There are the interlaced of micro- reflector element in exit direction.

10. Optical Maser System according to claim 8, it is characterised in that: the wavelength of the multiple laser light source is different.