CN201278029Y

CN201278029Y - Optical structure

Info

Publication number: CN201278029Y
Application number: CNU200820145919XU
Authority: CN
Inventors: 吴砺; 邱英; 杨建阳; 陈卫民; 马英俊; 凌吉武
Original assignee: Photop Technologies Inc
Current assignee: Photop Technologies Inc
Priority date: 2008-10-14
Filing date: 2008-10-14
Publication date: 2009-07-22
Anticipated expiration: 2018-10-14

Abstract

The utility model relates to an optical structure in the optical application field, in particular to an optical structure used for a microchip laser or a standard tool. The optical structure at least comprises a first optical sheet, a second optical sheet and a support column. The first optical sheet and the second optical sheet are respectively arranged at two sides of the support column to form a U-shaped structure. Other optical elements are also arranged behind the second optical sheet. Other optical elements are also arranged in the cavity of the U-shaped structure. Compared with the prior hollow standard, the optical structure has the advantages of easier large-scale mass production, easy wiping and convenient use.

Description

A kind of optical texture

Technical field

The utility model relates to the optical texture of field of optical applications, relates in particular to a kind of optical texture that is used for micro-slice laser or etalon.

Background technology

At optical field, the most important instrument that utilizes the multiple-beam interference principle to produce very thin sharp striped is a Fabry-Perot interferometer, it be two plating metal on surface films of flat board or multilayer dielectric reflectance coating make reflectance reach 90% with on realize multiple-beam interference.Fabry-Perot interferometer has two kinds of forms, a kind of be in the two boards one fixing, one can be moved, to change the distance h between two plates, but the workplace that will keep two plates in whole moving process is parallel still very difficult, and such instrument promptly is the F-P interferometer; Another kind is to add a parallel spacer ring between two boards, and this spacer ring is generally made by the indium steel, and very little expansion coefficient is arranged, and constant and strict parallel to guarantee the distance between two plates, this back one type instrument is the F-P etalon.Because etalon has high resolution capacity, therefore use more extensively, generally be commonly used to measure the wavelength difference that wavelength differs very little two spectrum lines, also can be used in and produce single longitudinal mode or the like in the laser cavity.Traditional hollow standard as shown in Figure 1 has the otpical leaf (101,103) of two support columns (1021,1022) and two production standard tools, and the support column material is a Zero-expansion material, does not promptly expand with heat and contract with cold substantially with temperature.For guaranteeing the high resolution capacity of etalon, the depth of parallelism and the thickness of two reflecting plates is controlled in necessary strictness in manufacturing process, and this has just increased the difficulty of technology.If the Center Gap of etalon is very little, wiping also is not easy so.

Micro-slice laser bonds together otpical leaf after by optical cement, gummed, in-depth optical cement and forms laserresonator.Need particular orientation to put or be difficult for the device of in-depth optical cement for some, as the Brewster sheet, wedged plate or the like, the bad debugging of microplate form with two support columns, and the requirement of the depth of parallelism of the otpical leaf of micro-slice laser is very high, the meeting inequality of the thickness of two support columns causes exporting the laser instability even does not have laser, and same this structure also is not easy to wiping.

The utility model content

For solving an above-mentioned difficult problem, the utility model provides a kind of novel optical texture, and this optical texture can be used for the making of micro-slice laser or etalon.Its easier batch process, and be easy to put into other optical elements, wiping also becomes and is easy to.

The utility model adopts following technical scheme:

Optical texture of the present utility model comprises first optical sheet, second optical sheet and a support column at least, and described first optical sheet and second optical sheet are arranged at described support column both sides respectively, constitutes the structure of " U " type.Further, the material of support column is a Zero-expansion material, can be pottery, optical material, crystal, semiconductor or metal material etc., and first optical sheet and second optical sheet and support column can bond together by gummed, optical cement, in-depth optical cement or welding.

Further, first optical sheet and second optical sheet are that otpical leaf constitutes etalon.

Perhaps, described first optical sheet is a gain medium, and described second optical sheet is the required optical element of laser cavity.Behind described second optical sheet other optical elements are set also.In the structure chamber of described " U " type other optical elements are set also.Described optical element is the device of the required optical material of laser instruments such as frequency-doubling crystal, wave plate, Brewster sheet, wedged plate, polarizing component.

The advantage of optical texture of the present utility model is:

1, can be made into strip integral body by optical cement, gummed, in-depth optical cement earlier, cut again;

2, owing to be U type structure, an opening is arranged, therefore compare and be easier to wiping with traditional hollow etalon;

3, in U type structure, be easy to put into the optical element that other are difficult for the in-depth optical cement or need specific position to put, as the Brewster sheet, frequency-doubling crystal, wedged plate or the like.

Description of drawings

Fig. 1 is the structural representation of traditional hollow etalon;

Fig. 2 is the structural representation of first embodiment of the present utility model;

Fig. 3 is the structural representation of second embodiment of the present utility model;

Fig. 4 is the structural representation of the 3rd embodiment of the present utility model;

Fig. 5 is the structural representation of the 4th embodiment of the present utility model.

Embodiment

The present invention is further described for existing accompanying drawings and embodiment.

As shown in Figure 2, optical texture of the present utility model comprises first optical sheet 101, second optical sheet 103 and a support column 102 at least, described first optical sheet 101 and second optical sheet 103 are arranged at described support column 102 both sides respectively, constitute the structure of " U " type.Further, the material of support column is a Zero-expansion material, can be pottery, optical material, crystal, semiconductor or metal material etc., first optical sheet 101 and second optical sheet 103 can bond together by gummed, optical cement, in-depth optical cement or welding with support column 102.

First embodiment:

Consult Fig. 2,101 is the otpical leaf of production standard tool, and 102 is the support column that Zero-expansion material or other materials are made, and 103 is the otpical leaf of production standard tool.In etalon, 103 liang of surfaces of otpical leaf 101 and otpical leaf are parallel to each other, equal surface coating, and light repeatedly reflects to form multiple-beam interference in two surfaces.

Second embodiment:

Be illustrated in figure 3 as micro-slice laser, 301 is gain medium, and 102 is the support column that Zero-expansion material or other materials are made, and 303,304 is the required other materials of laser cavity, as frequency-doubling crystal, wave plate or the like.

The 3rd embodiment:

As shown in Figure 4,401 is gain medium, 102 support columns of making for Zero-expansion material or other materials, and 403 is frequency-doubling crystal, 404 is other required material of laser cavity, as wave plate etc.

The 4th embodiment:

As shown in Figure 5,501 is gain medium, 102 support columns of making for Zero-expansion material or other materials, and 503 is the Brewster sheet, 504 is other required material of laser cavity, as wave plate etc.

The optical element that can insert separate optical element between two optical sheets of the present utility model and the support column or glue together with optical sheet; The optical element that inserts chamber between two optical sheets can separate with U type optical element of the present utility model, also can be bonded on the U type structure.

Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection domain of the present utility model.

Claims

1. optical texture, it is characterized in that: comprise first optical sheet, second optical sheet and a support column at least, described first optical sheet and second optical sheet are arranged at described support column both sides respectively, constitute the structure of " U " type.

2. optical texture as claimed in claim 1 is characterized in that: described first optical sheet and second optical sheet are the otpical leaf of etalon.

3. optical texture as claimed in claim 1 is characterized in that: described first optical sheet is a gain medium, and described second optical sheet is the required optical element of laser cavity.

4. optical texture as claimed in claim 1 is characterized in that: behind described second optical sheet other optical elements are set also.

5. optical texture as claimed in claim 1 is characterized in that: in the structure chamber of described " U " type other optical elements are set also.

6. as claim 3 or 4 or 5 described optical textures, it is characterized in that: described optical element is frequency-doubling crystal, wave plate, Brewster sheet, wedged plate, polarizing component.

7. optical texture as claimed in claim 1 is characterized in that: described support column is a Zero-expansion material.

8. optical texture as claimed in claim 7 is characterized in that: described Zero-expansion material is pottery, optical material, crystal, semiconductor or metal.