CN102096187B - Broadband achromatic Solier-Babinet compensator - Google Patents
Broadband achromatic Solier-Babinet compensator Download PDFInfo
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- CN102096187B CN102096187B CN201010601219.9A CN201010601219A CN102096187B CN 102096187 B CN102096187 B CN 102096187B CN 201010601219 A CN201010601219 A CN 201010601219A CN 102096187 B CN102096187 B CN 102096187B
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Abstract
The invention relates to a compensator as an optical device, in particular to a broadband achromatic Solier-Babinet compensator which is made from different kinds of double-refraction crystals, wherein the refraction indexes of the two materials meet achromatic phase matching, a wavelength can be adjusted in the range of 300-2500nm, a delaying amount can be adjusted in the range of 0-360 DEG, a bandwidth exceeds 200nm, and the delaying precision is up to lambda/500.
Description
[technical field]
Patent of the present invention relates to a kind of compensator in optical element, especially a kind of broadband achromatic Solier-Babinet compensator.
[technical background]
Can make two field vectors that vibrate in mutually perpendicular direction produce certain optical path difference or the device of phase differential, be called compensator, it is controllable phase differential that compensator can continuously change the orthogonal two bunch polarized lights generations of direction of vibration.Traditional compensator has Babinet compensator and Suo Lier-Babinet phase compensator: Babinet compensator is split and formed by the quartz crystal of two homogeneities, these two optical axises of splitting are mutually vertical, its shortcoming is to use superfine incident beam, because the different piece of wide light beam can produce different phase differential; And Suo Lier-Babinet phase compensator can make up this deficiency, it is made up of two parallel quartz wedges and a quartzy surface plate, the optical axis that the optical axis of quartz plate is split with two is vertical, on split and can make it parallel by fine adjustment screw, obtain the phase value of certain wavelength by two gross thickness of splitting thereby change light.
Compensator can produce needed wave plate on any wavelength; Can compensate and offset the natural birefringence of an element; Also can in an optical device, introduce a fixing delay biasing; After calibration calibration, can also be used to measure the phase delay of wave plate to be asked.Therefore in a lot of optical instruments, value has a wide range of applications.
But in laser system, optical communication device and optical tests measurement instrument, the polarized systems of the consumption such as digital camera industry needs to use multiple wavelength simultaneously in polarization light path.Babinet compensator and Suo Lier-Babinet phase compensator can only once be used a wavelength, and this not only makes polarization light path become complicated, and the present invention combines above application demand, has invented broadband achromatism Suo Lier-Babinet phase compensator.
[summary of the invention]
The present invention is on the basis of Suo Lier-Babinet compensator, adopt different crystalline materials, increase broad band wavelength colour killing adjustable, be referred to as broadband achromatism Suo Lier-Babinet phase compensator, its effect is similar to the adjustable zero-th order waveplates of phase-delay quantity in a broadband, and adjustable extent is at 300-2500nm, and it is even wider that wavelength bandwidth exceedes 200nm, retardation 0-360 °, postpones precision up to λ/500.
Technical scheme of the present invention is as follows: a kind of broadband achromatic Solier-Babinet compensator, formed by the birefringece crystal material of four angles of wedge, and it is characterized in that: the optical axis of crystalline material of the same race is parallel; The optical axis of crystalline material of the same race is not orthogonal.Described crystalline material can be quartz crystal, magnesium fluoride crystal, calcite crystal.The described crystal angle of wedge can move left and right.Wavelength regulation scope is at 300-2500nm.Retardation range of adjustment is at 0-360 °.The retardation of compensator can be at the wave band achromatism exceeding more than 200nm.Described crystalline material can optical cement, gummed or air-gap connect.
[brief description of the drawings]
Fig. 1 is that the present invention sends out broadband achromatism Suo Lier-Babinet phase compensator
Fig. 2 is the 90 degree retardations of 1000nm-1650nm, postpones precision and can reach λ/300,
[embodiment]
Embodiment mono-: Fig. 1 is that the present invention sends out broadband achromatism Suo Lier-Babinet phase compensator, is 2. 1. quartz crystal, is 4. 3. magnesium fluoride crystal, 2. and 3. makes respectively the little angle of wedge, and twin polishing connects by optical cement or air-gap, becomes an entirety.1. identical with the angle of wedge 2., optical axis is parallel; 3. identical with the angle of wedge 4., optical axis is parallel; 1. optical axis is 2. with 3. optical axis is 4. vertical, the equal polishing in surface that light path is passed through.If the two-fold rate of magnesium fluoride and quartz crystal is respectively: ne, no, Ne, No, concrete numerical value is obtained according to dispersion of refractive index equation, total retardation is: 2. thickness is 3. fixed, regulate the angle of wedge 1. and 4. to change d1 and d2, thereby it is adjustable to realize broadband colour killing, adjustable extent is at 300-2500nm, it is even wider that wavelength bandwidth exceedes 200nm, retardation 0-360 °, delay precision preferably can exceed λ/500 and calculate thickness d 1 and d2 according to software, d1 and d2 are by two accurate digimatic micrometer controls, as Fig. 2 90 degree retardations that are 1000nm-1650nm, postpone precision and can reach λ/300.
Claims (6)
1. a broadband achromatic Solier-Babinet compensator; comprise each two of two kinds of birefringece crystal materials of the angle of wedge; by wherein two not the non-angle of wedge face of birefringece crystal of the same race be bonded together; again all the other two blocks of birefringece crystals are placed on to angle of wedge face one side of corresponding birefringece crystal of the same race; wherein the angle of wedge of birefringece crystal of the same race staggered relatively is identical and angle of wedge face is relative, it is characterized in that: the optical axis of crystalline material of the same race is parallel; The optical axis of crystalline material of the same race is not orthogonal.
2. a kind of broadband achromatic Solier-Babinet compensator according to claim 1, is characterized in that: described crystalline material can be quartz crystal, magnesium fluoride crystal, calcite crystal.
3. broadband achromatic Solier-Babinet compensator according to claim 1, is characterized in that: wavelength regulation scope is at 300-2500nm.
4. broadband achromatic Solier-Babinet compensator according to claim 1, is characterized in that: retardation range of adjustment is at 0-360o.
5. broadband achromatic Solier-Babinet compensator according to claim 1, is characterized in that: the retardation of compensator can be at the wave band achromatism exceeding more than 200nm.
6. broadband achromatic Solier-Babinet compensator according to claim 1, is characterized in that: described birefringece crystal material of the same race staggered relatively can optical cement, medium gummed or air-gap connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010601219.9A CN102096187B (en) | 2010-12-23 | 2010-12-23 | Broadband achromatic Solier-Babinet compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010601219.9A CN102096187B (en) | 2010-12-23 | 2010-12-23 | Broadband achromatic Solier-Babinet compensator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102096187A CN102096187A (en) | 2011-06-15 |
| CN102096187B true CN102096187B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010601219.9A Active CN102096187B (en) | 2010-12-23 | 2010-12-23 | Broadband achromatic Solier-Babinet compensator |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103676183B (en) * | 2013-12-18 | 2016-01-27 | 深圳大学 | Variable-broadband birefringence phase compensator |
| CN110596042B (en) * | 2019-10-17 | 2025-02-11 | 桂林百锐光电技术有限公司 | A test device and test method for optical uniformity of biaxial crystal principal axis direction |
| CN112099126B (en) * | 2020-10-13 | 2022-06-24 | 福建福晶科技股份有限公司 | 600-once-used 2700nm waveband achromatic half-wave plate |
| CN112255779B (en) * | 2020-11-27 | 2022-05-24 | 中国科学院微电子研究所 | Large diameter compact Soleil-Barbinet compensator device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394026A (en) * | 2001-07-02 | 2003-01-29 | 福建华科光电有限公司 | Interleave temp compensating method |
| CN2550777Y (en) * | 2002-07-09 | 2003-05-14 | 北京鑫海莱光电科技有限公司 | Multi-path light isolator |
| CN1530694A (en) * | 2002-10-15 | 2004-09-22 | 奥普林克通信公司 | Reflective Variable Attenuator and Shunt Monitor |
| CN1928632A (en) * | 2005-09-09 | 2007-03-14 | Jds尤尼弗思公司 | Optimally clocked trim retarders |
-
2010
- 2010-12-23 CN CN201010601219.9A patent/CN102096187B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1394026A (en) * | 2001-07-02 | 2003-01-29 | 福建华科光电有限公司 | Interleave temp compensating method |
| CN2550777Y (en) * | 2002-07-09 | 2003-05-14 | 北京鑫海莱光电科技有限公司 | Multi-path light isolator |
| CN1530694A (en) * | 2002-10-15 | 2004-09-22 | 奥普林克通信公司 | Reflective Variable Attenuator and Shunt Monitor |
| CN1928632A (en) * | 2005-09-09 | 2007-03-14 | Jds尤尼弗思公司 | Optimally clocked trim retarders |
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| CN102096187A (en) | 2011-06-15 |
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