CN100335928C - Optical fiber sensitive element metallized packaging structure and its method - Google Patents

Optical fiber sensitive element metallized packaging structure and its method Download PDF

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CN100335928C
CN100335928C CNB2004100613789A CN200410061378A CN100335928C CN 100335928 C CN100335928 C CN 100335928C CN B2004100613789 A CNB2004100613789 A CN B2004100613789A CN 200410061378 A CN200410061378 A CN 200410061378A CN 100335928 C CN100335928 C CN 100335928C
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optical fiber
metal
grating
fiber grating
sensitive element
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CN1648702A (en
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姜德生
李小甫
范典
梅加纯
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Wuhan Ligong Guangke Co Ltd
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Wuhan University of Technology WUT
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Abstract

本发明旨在提供一种无胶化的封装结构和封装方法,用金属镀膜和焊接的方法完成光纤敏感元件金属化封装结构。将载氢光纤的外包层拨去,在裸光纤的位置用准分子激光器写入特定波长的光栅;将光纤光栅进行表面清洁和活化处理后,先镀上镍金属再镀金金属;将光纤光栅穿入金属管并分别固定在操作台上,或直接将光纤光栅直接固定在金属片上;将光纤光栅上加预应力,之后加热焊接光纤光栅和金属管或金属片。本发明结构的传感器有良好的线性性和可重复性。

Figure 200410061378

The invention aims to provide a non-glue package structure and package method, and complete the metallized package structure of optical fiber sensitive components by means of metal coating and welding. The outer cladding of the hydrogen-carrying optical fiber is removed, and an excimer laser is used to write a grating of a specific wavelength at the position of the bare optical fiber; after the surface of the optical fiber grating is cleaned and activated, it is first plated with nickel and then gold; Insert the metal tubes and fix them on the operating table respectively, or directly fix the fiber grating on the metal sheet; add prestress to the fiber grating, and then heat and weld the fiber grating and the metal tube or metal sheet. The sensor with the structure of the invention has good linearity and repeatability.

Figure 200410061378

Description

光纤敏感元件金属化封装结构及其方法Metallized packaging structure and method for optical fiber sensitive components

技术领域technical field

本发明涉及一种光纤敏感元件,特别是光纤光栅的金属化封装结构及其封装方法。The invention relates to an optical fiber sensitive element, in particular to a metallized packaging structure of an optical fiber grating and a packaging method thereof.

背景技术Background technique

光纤光栅是一种光纤敏感元件,经常应用于光纤传感和光纤通信领域。由于该元件敏感脆弱,它的封装技术成为工程应用中的关键技术。现在常用的封装技术是:将制作好的光纤光栅经过二次涂覆机的封装加上外包层后,再用特制的树脂胶将其封装在金属管或金属片上。Fiber grating is a kind of optical fiber sensitive element, which is often used in the field of optical fiber sensing and optical fiber communication. Because the component is sensitive and fragile, its packaging technology has become a key technology in engineering applications. Now the commonly used packaging technology is: After the finished fiber grating is packaged by a secondary coating machine and the outer cladding is added, it is packaged on a metal tube or metal sheet with a special resin glue.

现有的封装技术存在以下缺陷:首先,树脂胶属于有机物,易老化分解,不利于恶劣环境的长期使用;其次,当光纤光栅应用于传感领域时,光纤的外包层和树脂胶体都会在测量中产生冗余,影响测量的线性性和可重复性。The existing packaging technology has the following defects: First, the resin glue is an organic substance, which is easy to age and decompose, which is not conducive to long-term use in harsh environments; Redundancy occurs in the measurement, which affects the linearity and repeatability of the measurement.

发明内容Contents of the invention

本发明旨在提供一种无胶化的封装结构和封装方法,用金属镀膜和焊接的方法完成光纤敏感元件金属化封装结构。本发明结构的传感器有良好的线性性和可重复性。The invention aims to provide a non-gelling packaging structure and packaging method, and completes the metallized packaging structure of optical fiber sensitive components by means of metal coating and welding. The sensor with the structure of the invention has good linearity and repeatability.

本发明是一种光纤敏感元件金属化封装结构,主要包括光纤敏感元件(1)、金属管(2),其特征在于光纤敏感元件表面有金属镀层(5),并有金属焊点(3)将光纤敏感元件(1)和金属管(2)焊接在一起。The invention relates to a metallized package structure of an optical fiber sensitive element, which mainly includes an optical fiber sensitive element (1) and a metal tube (2), and is characterized in that the surface of the optical fiber sensitive element has a metal coating (5) and metal solder joints (3) Weld the optical fiber sensing element (1) and the metal tube (2) together.

本发明是一种光纤敏感元件金属化封装结构,其实现方法是:将载氢光纤的外包层(6)拨去,在裸光纤(4)的位置用准分子激光器写入特定波长的光栅(1);将光纤光栅进行表面清洁和活化处理后,先镀上镍金属再镀金金属;将光纤光栅穿入金属管并分别固定在操作台上;将光纤光栅上加预应力,之后加热焊接光纤光栅(1)和金属管(2),形成金属焊点(3)。The present invention is a metallized packaging structure for optical fiber sensitive components, and its realization method is: remove the outer cladding (6) of the hydrogen-carrying optical fiber, and write a grating of a specific wavelength ( 1); After cleaning and activating the surface of the fiber grating, it is first plated with nickel metal and then gold-plated metal; the fiber grating is penetrated into the metal tube and fixed on the operating table; the fiber grating is prestressed, and then the fiber is heated and welded The grating (1) and the metal pipe (2) form a metal solder joint (3).

如前所述的一种光纤敏感元件金属化封装结构,其特征在于光纤敏感元件(1)是光纤光栅,金属镀层(5)有两层,内层为镍,外层为金,金属焊点(3)位于光纤敏感元件部位的两侧。A metallized package structure of an optical fiber sensitive element as described above is characterized in that the optical fiber sensitive element (1) is a fiber grating, and the metal coating (5) has two layers, the inner layer is nickel, the outer layer is gold, and the metal solder joint (3) Located on both sides of the optical fiber sensitive element.

本发明采用全金属化的封装技术,避免使用树脂胶产生的老化和冗余的问题,使光纤敏感元件作为传感器具有良好的线性特性和可重复性。The invention adopts full-metal packaging technology, avoids the problems of aging and redundancy caused by the use of resin glue, and makes the optical fiber sensitive element as a sensor have good linear characteristics and repeatability.

附图说明Description of drawings

图1.光纤敏感元件金属化封装结构图Figure 1. Metallized packaging structure diagram of optical fiber sensitive components

图2.光纤敏感元件金属化封装方法流程图Figure 2. Flow chart of the metallization packaging method for optical fiber sensitive components

具体实施方式Detailed ways

如图1.所示,本发明是一种光纤敏感元件金属化封装结构,主要包括光纤敏感元件(1)、金属管(2),其特征在于光纤敏感元件表面有金属镀层(5),并有金属焊点(3)将光纤敏感元件(1)和金属管(2)焊接在一起。一种光纤敏感元件金属化封装方法;其实施步骤如图2所示为:将载氢光纤的外包层(6)拨去,在裸光纤(4)的位置用准分子激光器写入特定波长的光栅(1);将光纤光栅进行表面清洁和活化处理后,先镀上镍金属在镀金金属;将光纤光栅穿入金属管并分别固定在操作台上;将光纤光栅上加预应力,之后加热焊接光纤光栅(1)和金属管(2),形成金属焊点(3)。As shown in Figure 1., the present invention is a metallized packaging structure for optical fiber sensitive elements, mainly comprising optical fiber sensitive elements (1), metal tubes (2), characterized in that the surface of the optical fiber sensitive elements has a metal coating (5), and There are metal welding spots (3) to weld the optical fiber sensitive element (1) and the metal pipe (2). A metallization packaging method for optical fiber sensitive components; its implementation steps are as shown in Figure 2: the outer cladding (6) of the hydrogen-carrying optical fiber is removed, and an excimer laser is used to write a specific wavelength at the position of the bare optical fiber (4). Grating (1); after cleaning and activating the surface of the fiber grating, first plate nickel metal on the gold-plated metal; penetrate the fiber grating into the metal tube and fix it on the operating table; add prestress to the fiber grating, and then heat The optical fiber grating (1) and the metal pipe (2) are welded to form metal solder joints (3).

除油:用酒精棉球擦拭光纤表面数次,然后用低于100gL-1 NaOH溶液浸泡10min,取出用去离子水彻底冲洗。Degreasing: Wipe the surface of the fiber several times with an alcohol cotton ball, then soak it in less than 100gL -1 NaOH solution for 10 minutes, take it out and rinse it thoroughly with deionized water.

粗化:用含有F-或H2SiF6的强酸性溶液对光纤表面进行弱腐蚀,以达到一定程度的粗化。粗化液选用HF∶H2SiF6∶H2O=1∶1∶2(体积比),粗化时间取10min为好,取出去离子水冲洗。Roughening: Use a strong acidic solution containing F - or H 2 SiF 6 to slightly corrode the surface of the optical fiber to achieve a certain degree of roughening. The roughening solution is HF:H 2 SiF 6 :H 2 O=1:1:2 (volume ratio), the roughening time is preferably 10 minutes, and the deionized water is taken out for washing.

热处理:粗化后光纤表面的水膜严重阻碍活性催化粒子吸附于光纤表面上,因此,光纤在敏化前应先进行热处理,热处理制度为:120℃下保温10min。Heat treatment: The water film on the surface of the optical fiber after roughening seriously hinders the adsorption of active catalytic particles on the surface of the optical fiber. Therefore, the optical fiber should be heat treated before sensitization. The heat treatment system is: 120°C for 10 minutes.

敏化:将热处理后的光纤浸入敏化液中,敏化的目的是使光纤表面吸附一层容易氧化的物质(如SnCl2),利用它可将电极电位高的金属离子(如Pd2+)还原成金属原子。将5g SnCl2溶于5ml浓盐酸中,再稀释至规定体积,以避免SnCl2在水溶液中形成胶体沉淀。Sensitization: Immerse the heat-treated optical fiber in the sensitizing solution. The purpose of sensitization is to make the surface of the optical fiber absorb a layer of easily oxidized substances (such as SnCl 2 ), and use it to remove metal ions with high electrode potential (such as Pd 2+ ) are reduced to metal atoms. Dissolve 5g of SnCl2 in 5ml of concentrated hydrochloric acid, and then dilute to the specified volume to avoid colloidal precipitation of SnCl2 in the aqueous solution.

活化:将经过敏化处理过的光纤浸泡在PdCl2溶液中一定时间,使光纤表面吸附的二价Sn2+与活化液PdCl2中的二价Pd2+反应,形成化学镀镍所需的具有催化活性的贵金属晶核Pd,反应式如下:Activation: immerse the sensitized optical fiber in PdCl 2 solution for a certain period of time, so that the divalent Sn 2+ adsorbed on the surface of the optical fiber reacts with the divalent Pd 2+ in the activation solution PdCl 2 to form the electroless nickel The noble metal crystal nucleus Pd with catalytic activity has the following reaction formula:

Sn2++Pd2+=Sn4++PdSn 2+ +Pd 2+ =Sn 4+ +Pd

反应生成的活性Pd原子吸附在石英光纤表面上,便成为化学镀镍反应的催化中心,从而使化学镀镍顺利进行。The active Pd atoms generated by the reaction are adsorbed on the surface of the quartz optical fiber, and become the catalytic center of the electroless nickel plating reaction, so that the electroless nickel plating proceeds smoothly.

热处理:为了提高活性Pd原子与光纤表面的接合力,经活化处理后的光纤应在120℃下热处理10min。Heat treatment: In order to improve the bonding force between active Pd atoms and the surface of the optical fiber, the optical fiber after activation treatment should be heat treated at 120°C for 10 minutes.

先镀上镍金属在镀金金属;分别配制硫酸镍、次亚磷酸钠、乳酸、碳酸钠、氯化铵和糖精的混合溶液,并加热到一定温度,浸入经处理后的石英光纤,若干时间后取出。First plate nickel metal and then gold-plate metal; prepare mixed solutions of nickel sulfate, sodium hypophosphite, lactic acid, sodium carbonate, ammonium chloride and saccharin, and heat to a certain temperature, immerse the treated quartz optical fiber, after a certain period of time take out.

将光纤光栅穿入金属管并分别固定在操作台上,;在光纤光栅上加预应力,之后加热焊接光纤光栅(1)和金属管(2),形成金属焊点(3)。The optical fiber grating is penetrated into the metal pipe and fixed on the operating table respectively; prestress is added to the optical fiber grating, and then the optical fiber grating (1) and the metal pipe (2) are heated and welded to form metal solder joints (3).

Claims (1)

1、一种光纤敏感元件金属化封装方法,其实现方法是:将载氢光纤的外包层(6)拨去,在裸光纤(4)的位置用准分子激光器写入特定波长的光栅(1);将光纤光栅进行表面清洁和活化处理后,先镀上镍金属再镀金金属;将光纤光栅穿入金属管并分别固定在操作台上;将光纤光栅上加预应力,之后加热焊接光纤光栅(1)和金属管(2),形成金属焊点(3)。1. A method for metallizing and encapsulating optical fiber sensitive components. The method is to remove the outer cladding (6) of the hydrogen-carrying optical fiber, and use an excimer laser to write a specific wavelength grating (1) at the position of the bare optical fiber (4). ); After cleaning and activating the surface of the fiber grating, it is first plated with nickel metal and then gold-plated metal; the fiber grating is penetrated into the metal tube and fixed on the operating table; the fiber grating is prestressed, and then the fiber grating is heated and welded (1) and the metal tube (2) to form a metal solder joint (3).
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* Cited by examiner, † Cited by third party
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CN102788603B (en) 2012-07-27 2016-02-24 华东理工大学 The high-temperature resistant optical fiber grating sensor of metal package and manufacture method thereof
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW418332B (en) * 1999-06-14 2001-01-11 Ind Tech Res Inst Optical fiber grating package
US6181851B1 (en) * 1997-05-29 2001-01-30 E-Tek Dynamics, Inc. Temperature-compensated optical fiber package
CN1316660A (en) * 2001-03-19 2001-10-10 上海鹰泰机电有限公司 Vacuum package technology of optical-fibre raster filter and its device
CN2550719Y (en) * 2002-05-30 2003-05-14 欧进萍 Optical fiber and grating sheet type package strainometer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6181851B1 (en) * 1997-05-29 2001-01-30 E-Tek Dynamics, Inc. Temperature-compensated optical fiber package
TW418332B (en) * 1999-06-14 2001-01-11 Ind Tech Res Inst Optical fiber grating package
CN1316660A (en) * 2001-03-19 2001-10-10 上海鹰泰机电有限公司 Vacuum package technology of optical-fibre raster filter and its device
CN2550719Y (en) * 2002-05-30 2003-05-14 欧进萍 Optical fiber and grating sheet type package strainometer

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