CN2550738Y - Temperature compensator for optical fiber grating wave length - Google Patents
Temperature compensator for optical fiber grating wave length Download PDFInfo
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- CN2550738Y CN2550738Y CN 02262682 CN02262682U CN2550738Y CN 2550738 Y CN2550738 Y CN 2550738Y CN 02262682 CN02262682 CN 02262682 CN 02262682 U CN02262682 U CN 02262682U CN 2550738 Y CN2550738 Y CN 2550738Y
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- 239000013307 optical fiber Substances 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 13
- -1 that is Substances 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Mechanical Light Control Or Optical Switches (AREA)
Abstract
光纤光栅波长的温度补偿器是一种机械的方式进行温度补偿的装置能自动达到波长/温度补偿的目的。该装置由固定基座、弹簧片、螺杆、活动基座、导向装置、基板所组成，固定基座的下端固定在基板上的一端，基板的另一端固定有导向装置，活动基座位于导向装置上并可在基板上滑动，螺杆的一端穿过固定基座，螺杆的另一端与活动基座螺纹连接，弹簧片为圆弧形，其两头分别固定在固定基座和活动基座上。螺杆、固定基座、活动基座采用相同的材料制成，即热膨胀系数一致的材料。弹簧片采用低热膨胀系数的材料制成，且其热膨胀系小于螺杆的热膨胀系数。
The fiber grating wavelength temperature compensator is a device for mechanical temperature compensation, which can automatically achieve the purpose of wavelength/temperature compensation. The device is composed of a fixed base, a spring leaf, a screw, a movable base, a guide device, and a base plate. The lower end of the fixed base is fixed on one end of the base plate, and the other end of the base plate is fixed with a guide device. One end of the screw rod passes through the fixed base, the other end of the screw rod is threaded with the movable base, and the spring leaf is arc-shaped, and its two ends are respectively fixed on the fixed base and the movable base. The screw rod, the fixed base and the movable base are made of the same material, that is, materials with the same thermal expansion coefficient. The spring sheet is made of a material with a low thermal expansion coefficient, and its thermal expansion coefficient is smaller than that of the screw.
Description
一、技术领域1. Technical field
本实用新型是一种用机械结构进行温度补偿的装置，属于光纤光栅波长的自动补偿技术领域。The utility model relates to a device for temperature compensation with a mechanical structure, which belongs to the technical field of automatic compensation of optical fiber grating wavelength.
二、背景技术2. Background technology
光纤光栅的布喇格波长(λ)是决定于光纤光栅的周期(Λ)和平均折射率(n)。当温度变化时，Λ和n将发生变化，导致λ的漂移。The Bragg wavelength (λ) of the fiber grating is determined by the period (Λ) and the average refractive index (n) of the fiber grating. When the temperature changes, Λ and n will change, resulting in a drift of λ.
目前已有利用构成材料的热膨胀系数来调节光纤上的张力，导致光纤光栅波长的稳定。例如：(1)利用双金属结构；(2)利用菱形结构等来调节光纤上的张力。此类机构结构的缺点：张力调节范围小，封装后难以调整，体积大。At present, the thermal expansion coefficient of the constituent materials has been used to adjust the tension on the fiber, resulting in the stabilization of the wavelength of the fiber grating. For example: (1) using a bimetallic structure; (2) using a diamond structure to adjust the tension on the optical fiber. The disadvantages of this type of mechanism structure: the tension adjustment range is small, it is difficult to adjust after packaging, and the volume is large.
三、技术内容3. Technical content
1、发明目的：1. Purpose of the invention:
本实用新型的发明目的就是提供一种使光纤光栅的布喇格波长不随温度而变化，能自动达到波长/温度补偿目的的光纤光栅波长的温度补偿器。The purpose of the invention of the utility model is to provide a temperature compensator for the wavelength of the fiber grating, which can automatically achieve the purpose of wavelength/temperature compensation, so that the Bragg wavelength of the fiber grating does not change with temperature.
2、技术方案：2. Technical solution:
本实用新型的光纤光栅波长的温度补偿器，由光纤和温度补偿部分所组成。该装置由固定基座、弹簧片、螺杆、活动基座、导向装置、基板所组成，固定基座的下端固定在基板上的一端，基板的另一端固定有导向装置，活动基座位于导向装置上并可在基板上滑动，螺杆的一端穿过固定基座，螺杆的另一端与活动基座螺纹连接。弹簧片为圆弧形，其两头分别固定在固定基座和活动基座上。螺杆、固定基座、活动基座采用相同的材料制成，即热膨胀系数一致的材料。弹簧片采用低热膨胀系数的材料制成，且其热膨胀系数小于螺杆的热膨胀系数。The fiber grating wavelength temperature compensator of the utility model is composed of an optical fiber and a temperature compensation part. The device is composed of a fixed base, a spring piece, a screw, a movable base, a guide device, and a base plate. The lower end of the fixed base is fixed on one end of the base plate, and the other end of the base plate is fixed with a guide device. and can slide on the base plate, one end of the screw rod passes through the fixed base, and the other end of the screw rod is threadedly connected with the movable base. The spring leaf is arc-shaped, and its two ends are respectively fixed on the fixed base and the movable base. The screw rod, the fixed base and the movable base are made of the same material, that is, materials with the same thermal expansion coefficient. The spring sheet is made of a material with a low thermal expansion coefficient, and its thermal expansion coefficient is smaller than that of the screw rod.
工作原理：working principle:
光纤光栅的布喇格波长(λ)是决定于光纤光栅的周期(Λ)和平均折射率(n)。当温度变化时，Λ和n将发生变化，导致λ的漂移。The Bragg wavelength (λ) of the fiber grating is determined by the period (Λ) and the average refractive index (n) of the fiber grating. When the temperature changes, Λ and n will change, resulting in a drift of λ.
在光纤光栅上预先加上一个张力，由于光纤光栅的拉长，引起光纤光栅Λ和n的变化，诱发λ的漂移。如果这个预加的张力随着温度增加而减小，这就可能由于预加张力减小引起波长的减小，来补偿由于温度升高引起的波长增加。本发明的组合机构就用此原理设计的。Pre-applying a tension on the fiber grating, due to the elongation of the fiber grating, causes the change of the fiber grating Λ and n, and induces the drift of λ. If this pre-tension decreases with increasing temperature, it is possible to compensate for the increase in wavelength due to temperature increase by reducing the wavelength due to the decrease in pre-tension. Combined mechanism of the present invention is designed with this principle.
工作过程：work process:
(1)光纤光栅用环氧树脂胶粘牢在固定基座(3)、活动基座(6)上；(1) The fiber grating is firmly glued to the fixed base (3) and the movable base (6) with epoxy resin;
(2)用螺杆(5)调节固定基座(3)、活动基座(6)的相对位置，使光纤处于合适的拉直状态；(2) Adjust the relative positions of the fixed base (3) and the movable base (6) with the screw (5), so that the optical fiber is in a suitable straightened state;
(3)弹簧片(4)的两端嵌入固定基座(3)、活动基座(6)的边槽内，使弹簧片的弯曲顶端顶住光纤，产生一个附加张力；(3) The two ends of the spring piece (4) are embedded in the side grooves of the fixed base (3) and the movable base (6), so that the curved top of the spring piece bears against the optical fiber to generate an additional tension;
(4)当温度增加时，螺杆产生热膨胀，引起活动基座相对位移(增加)，在光纤光栅上产生张力，引起波长增加；(4) When the temperature increases, the screw produces thermal expansion, which causes the relative displacement (increase) of the movable base, generates tension on the fiber grating, and causes the wavelength to increase;
(5)由于活动基座位移增加，同时使弹簧片的弹性释放，减小了附加张力，使波长减小。补偿了温度对波长的影响；(5) Due to the increased displacement of the movable base, the elasticity of the spring sheet is released at the same time, which reduces the additional tension and reduces the wavelength. The influence of temperature on wavelength is compensated;
(6)当温度减小时，上述过程相反。(6) When the temperature decreases, the above process is reversed.
3、技术效果：3. Technical effect:
本实用新型的的优点在于可调节光纤上预加张力；利用弹簧片可在光纤上产生附加张力，增加张力的调节范围；当温度变化时，可利用组合结构来保持光纤上的张力基本不变。因此能自动达到波长/温度补偿的目的。The advantage of the utility model is that the pre-tension on the optical fiber can be adjusted; additional tension can be generated on the optical fiber by using the spring sheet, and the adjustment range of the tension can be increased; when the temperature changes, the combined structure can be used to keep the tension on the optical fiber basically unchanged . Therefore, the purpose of wavelength/temperature compensation can be automatically achieved.
四、附图说明4. Description of drawings
图1是本实用新型的总体结构示意图。其中包括光纤光栅1、粘接剂2、固定基座3、弹簧片4、螺杆5、活动基座6、导向装置7、基板8。Fig. 1 is the overall structural representation of the utility model. It includes a fiber grating 1, an adhesive 2, a fixed base 3, a spring piece 4, a screw 5, a movable base 6, a guiding device 7, and a substrate 8.
五、具体实施方法5. Specific implementation methods
本实用新型的光纤光栅波长的温度补偿器，由光纤和温度补偿部分所组成，该装置由固定基座3、弹簧片4、螺杆5、活动基座6、导向装置7、基板8所组成，固定基座3的下端固定在基板8上，基板8的另一端固定有导向装置7，活动基座6位于导向装置7之间并可在基板8上定向滑动。螺杆5的一端穿过固定基座3，螺杆5的另一端与活动基座6螺纹连接。弹簧片4为圆弧形，其两头分别固定在固定基座3和活动基座6上。The fiber grating wavelength temperature compensator of the utility model is composed of an optical fiber and a temperature compensating part. The device is composed of a fixed base 3, a spring piece 4, a screw rod 5, a movable base 6, a guide device 7, and a substrate 8. The lower end of the fixed base 3 is fixed on the base plate 8 , the other end of the base plate 8 is fixed with a guide device 7 , and the movable base 6 is located between the guide devices 7 and can slide on the base plate 8 in an orientation. One end of the screw rod 5 passes through the fixed base 3 , and the other end of the screw rod 5 is threadedly connected with the movable base 6 . The leaf spring 4 is arc-shaped, and its two ends are respectively fixed on the fixed base 3 and the movable base 6 .
具体要求如下Specific requirements are as follows
1、螺杆一双基座采用相同材料。例如铝、钢等，在0～100℃温度范围内，热膨胀系数为α1＝10-5/度数量级。1. The screw and a pair of bases are made of the same material. For example, aluminum, steel, etc., in the temperature range of 0 to 100°C, the coefficient of thermal expansion is on the order of α 1 =10 -5 /degree.
2、弹簧片材料的热膨胀系数α2＜α1，可采用殷钢片，比上述材料小一个数量级。2. The coefficient of thermal expansion of the spring material is α 2 < α 1 , Invar can be used, which is an order of magnitude smaller than the above materials.
3、保证活动基座6移动灵活，尽量减少与基板8的磨擦力。3. Ensure that the movable base 6 can move flexibly, and minimize friction with the base plate 8 .
4、为了保证活动基座6的轴向移动，活动基座6的两旁加导向装置7。4. In order to ensure the axial movement of the movable base 6, guide devices 7 are added on both sides of the movable base 6.
5、弹簧片4夹持在固定基座3、活动基座6之间，必须具有弹性。5. The spring leaf 4 is clamped between the fixed base 3 and the movable base 6 and must be elastic.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 02262682 CN2550738Y (en) | 2002-06-25 | 2002-06-25 | Temperature compensator for optical fiber grating wave length |
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| CN 02262682 CN2550738Y (en) | 2002-06-25 | 2002-06-25 | Temperature compensator for optical fiber grating wave length |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950053A (en) * | 2010-09-10 | 2011-01-19 | 中航光电科技股份有限公司 | Optical fiber connector |
| CN101855528B (en) * | 2007-11-09 | 2012-11-21 | 萨索特兰公司 | Surface temperature sensing system |
| WO2013091401A1 (en) * | 2011-12-20 | 2013-06-27 | 武汉光迅科技股份有限公司 | Method for compensating for wavelength shift in wavelength selective switch, and device therefor |
| CN103615449A (en) * | 2013-11-25 | 2014-03-05 | 中国科学院长春光学精密机械与物理研究所 | Compressing device in solidification process of glue for main grating glass ruler and ruler shell of grating ruler |
| CN104295578A (en) * | 2014-10-24 | 2015-01-21 | 中国科学院上海光学精密机械研究所 | Grating ruler mounting tool capable being elongated |
| CN106094116A (en) * | 2015-04-30 | 2016-11-09 | 晋禾企业股份有限公司 | Temperature compensated fiber Bragg grating filter device |
| CN107086698B (en) * | 2017-06-21 | 2023-12-15 | 中原内配（上海）电子科技有限公司 | Electric control actuator and motor fixing structure for vehicle |
-
2002
- 2002-06-25 CN CN 02262682 patent/CN2550738Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101855528B (en) * | 2007-11-09 | 2012-11-21 | 萨索特兰公司 | Surface temperature sensing system |
| CN101950053A (en) * | 2010-09-10 | 2011-01-19 | 中航光电科技股份有限公司 | Optical fiber connector |
| CN101950053B (en) * | 2010-09-10 | 2012-10-03 | 中航光电科技股份有限公司 | Optical fiber connector |
| WO2013091401A1 (en) * | 2011-12-20 | 2013-06-27 | 武汉光迅科技股份有限公司 | Method for compensating for wavelength shift in wavelength selective switch, and device therefor |
| US9766421B2 (en) | 2011-12-20 | 2017-09-19 | Accelink Technologies Co., Ltd. | Method for compensating for wavelength shift in wavelength selective switch, and device therefor |
| CN103615449A (en) * | 2013-11-25 | 2014-03-05 | 中国科学院长春光学精密机械与物理研究所 | Compressing device in solidification process of glue for main grating glass ruler and ruler shell of grating ruler |
| CN103615449B (en) * | 2013-11-25 | 2015-06-10 | 中国科学院长春光学精密机械与物理研究所 | Compressing device in solidification process of glue for main grating glass ruler and ruler shell of grating ruler |
| CN104295578A (en) * | 2014-10-24 | 2015-01-21 | 中国科学院上海光学精密机械研究所 | Grating ruler mounting tool capable being elongated |
| CN104295578B (en) * | 2014-10-24 | 2016-06-08 | 中国科学院上海光学精密机械研究所 | Long grating chi setting tool can be connect |
| CN106094116A (en) * | 2015-04-30 | 2016-11-09 | 晋禾企业股份有限公司 | Temperature compensated fiber Bragg grating filter device |
| CN106094116B (en) * | 2015-04-30 | 2019-11-08 | 晋禾企业股份有限公司 | Temperature compensated fiber Bragg grating filter device |
| CN107086698B (en) * | 2017-06-21 | 2023-12-15 | 中原内配（上海）电子科技有限公司 | Electric control actuator and motor fixing structure for vehicle |
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