CN202533604U - Hermetical optical fiber reference air space - Google Patents
Hermetical optical fiber reference air space Download PDFInfo
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- CN202533604U CN202533604U CN2011205059287U CN201120505928U CN202533604U CN 202533604 U CN202533604 U CN 202533604U CN 2011205059287 U CN2011205059287 U CN 2011205059287U CN 201120505928 U CN201120505928 U CN 201120505928U CN 202533604 U CN202533604 U CN 202533604U
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Abstract
The utility model provides a hermetical optical fiber reference air space. The hermetical optical fiber reference air space uses a hollow-core photonic crystal fiber, and after filling the hollow-core photonic crystal fiber with gas, two ends are sealed by common solid-core fibers using a fiber fusion welding method. For the solid-core fibers welded on two ends, an optical input end is an ordinary single mode fiber, and the other end is a receiving end using an ordinary multi-mode fiber. The air space is put into a firm metal pipe to be protected. The air space is advantaged by good tightness, simple structure, reliable and durable, easy production, etc.
Description
Technical field
The utility model relates to a kind of laser detection equipment, relates in particular to a kind of hermetic fiber reference gas chamber, can use laser wavelength calibration or gas sensing reference.
Background technology
At present, generally adopt the optical reference air chamber, in the optical gas sensing, also will adopt reference gas chamber to carry out the calibration of gas absorption spectrum at the wavelength calibration of laser instrument especially tunable laser.Particularly in the optical fiber gas sensing field, reference gas chamber has become one of standard core part of detection system, but the general chamber of adopting paired optical collimation lens to form of the reference gas chamber that adopts; Carry out the method for mechanical seal or glue envelope after then gas being filled; But this method has complex structure, and air chamber stability is bad, and shock resistance is poor; Shortcomings such as volume is bigger have restricted the development of optical fiber gas sensing technology.
Summary of the invention
Complicated in order to improve existing optics air chamber structure, stability is bad, and shock resistance is poor; The bigger deficiency that waits of volume, the utility model provides a kind of hermetic fiber reference gas chamber, and this reference gas chamber adopts hollow-core photonic crystal fiber; Can realize that with the gas long term seal method through the electric arc fused fiber splice realizes good sealing; Shock resistance is good, and volume is urinated in installation.
The scheme that the utility model adopts is: a kind of hermetic fiber reference gas chamber, it comprises the hollow-core photonic crystal fiber of one section intercepting, charge into gas after, utilize the method for real core fibre through fused fiber splice with the hollow-core photonic crystal fiber sealed at both ends.
Said hollow-core photonic crystal fiber adopts the HC-1550-02 type hollow wave guide photon optical fiber of NKT photon company.
The weld appearance of solid core fibres and hollow-core photonic crystal fiber is provided with heat-shrink tube.At the outside suit metal tube of hermetic fiber reference gas chamber, two ends heat-shrink tube and inner wall of metal tube is bonding, protect.
Said real core fibre, what be positioned at input light one end is single-mode fiber, the other end adopts multimode optical fiber as receiving end.
Said single-mode fiber is that communications industry is used single-mode fiber, and its core diameter is 9 microns, and cladding diameter is 125 microns.
Said multimode optical fiber is that communications industry is used multimode optical fiber, and its core diameter is 50 microns, and cladding diameter is 125 microns.
The welding pattern of ordinary optic fibre heat sealing machine is set to manual mode during welding, and the welding parameter is respectively: 1.5 milliamperes in fritting electric current, and 7 milliseconds of fritting times, 2 milliamperes of welding currents, weld time 0.6 second, 1 millisecond of fltting speed, welding advances 10 microns.
Said ordinary optic fibre heat sealing machine is the KL-280 type optical fiber splicer that Nanjing Jilong Optical Communication Co., Ltd. produces.
The hollow-core photonic crystal fiber microstructured optical fibers that is otherwise known as; Cause extensive concern in recent years; Complicated index distribution is arranged on its xsect; Usually the pore that contains different spread patterns, the yardstick of these pores and optical wavelength are roughly in same magnitude and run through the whole length of device, and light wave can be limited in the fiber cores district and propagate.Its inner special air hole structure make light and gas can be in optical fiber direct interaction, and the loss of photonic crystal fiber is lower, and effective absorption light path is increased greatly, has improved the sensitivity of system.Optics air chamber with respect to tradition employing collimation lens has lower loss.According to the gas of the variable concentrations that will measure, one section hollow-core photonic crystal fiber of intercepting, gas charged into optical fiber after, adopt the method for the fine welding of common electrical arc light, utilize common real core fibre with sealed at both ends.
The employing of the utility model novel hollow-core photonic crystal fiber, the method that adopts the electric arc fused fiber splice has good airproof performance with hollow-core fiber and real core fibre welding, and is simple in structure, reliability and durability is convenient to making, advantages such as anti-mechanical shock.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the air chamber structure figure of the utility model; Fig. 2 is the end face structure figure of hollow-core photonic crystal fiber; Fig. 3 is the abosrption spectrogram through encapsulation back sealed air chamber; 1-general single mode fiber among the figure; The 2-hollow-core photonic crystal fiber; The common multimode optical fiber of 3-; The 4-heat-shrink tube; The bonding glue of 5-; The 6-metal tube.
Embodiment
Specify the utility model embodiment below in conjunction with Fig. 1.
In Fig. 1, gas is charged in the hollow-core photonic crystal fiber 2, use the ordinary optic fibre heat sealing machine with general single mode fiber 1 and hollow-core photonic crystal fiber 2 one end weldings then, weld is with heat-shrink tube 4 protections; With common multimode optical fiber 3 and hollow-core photonic crystal fiber 2 other end weldings, weld is with heat-shrink tube 4 protections with the ordinary optic fibre heat sealing machine.The optical fiber that welding is good is positioned in the metal tube 6, and the bonding glue 5 of heat-shrink tube 4 usefulness is fixed in inner wall of metal tube.Then with metal tube 6 two-port and optical fiber with bonding glue 5 sealing and fixing.Said hollow-core photonic crystal fiber adopts the HC-1550-02 type hollow wave guide photon optical fiber of NKT photon company.Said single-mode fiber is that communications industry is used general single mode fiber, and its core diameter is 9 microns, and cladding diameter is 125 microns.Said multimode optical fiber is that communications industry is used common multimode optical fiber, and its core diameter is 50 microns, and cladding diameter is 125 microns.The ordinary optic fibre heat sealing machine has been adopted in the welding of said solid core fibres (single-mode fiber and multimode optical fiber) and hollow-core photonic crystal fiber.The KL-280 type optical fiber splicer that present embodiment adopts Nanjing Jilong Optical Communication Co., Ltd. to produce; The welding pattern is set to manual mode during welding, and the welding parameter is respectively: 1.5 milliamperes in fritting electric current, 7 milliseconds of fritting times; 2 milliamperes of welding currents; Weld time 0.6 second, 1 millisecond of fltting speed, welding advances 10 microns.It is identical with general general single mode fiber welding parameter that other is provided with content.
Fig. 2 is the inner hollow core structural drawing of hollow-core photonic crystal fiber, can in optical fiber, fill gas just because of this hollow core structures.
Fig. 3 has filled the sealing reference gas chamber that volumetric concentration is 10% acetylene gas, the normalization abosrption spectrogram that scanning obtains through tunable laser.
Claims (9)
1. hermetic fiber reference gas chamber, it comprises the hollow-core photonic crystal fiber of one section intercepting, charge into gas after, utilize the method for real core fibre through fused fiber splice with the hollow-core photonic crystal fiber sealed at both ends.
2. hermetic fiber reference gas chamber according to claim 1 is characterized in that said hollow-core photonic crystal fiber is the HC-1550-02 type hollow wave guide photon optical fiber of NKT photon company.
3. hermetic fiber reference gas chamber according to claim 1 is characterized in that the weld appearance of solid core fibres and hollow-core photonic crystal fiber is provided with heat-shrink tube.
4. hermetic fiber reference gas chamber according to claim 1 is characterized in that at the outside suit metal tube of hermetic fiber reference gas chamber, and two ends heat-shrink tube and inner wall of metal tube is bonding.
5. hermetic fiber reference gas chamber according to claim 1 is characterized in that said real core fibre, and what be positioned at input light one end is single-mode fiber, and the other end adopts multimode optical fiber as receiving end.
6. hermetic fiber reference gas chamber according to claim 5 is characterized in that said single-mode fiber is that communications industry is used single-mode fiber, and its core diameter is 9 microns, and cladding diameter is 125 microns.
7. hermetic fiber reference gas chamber according to claim 5 is characterized in that said multimode optical fiber is that communications industry is used multimode optical fiber, and its core diameter is 50 microns, and cladding diameter is 125 microns.
8. hermetic fiber reference gas chamber according to claim 1; The welding pattern of optical fiber splicer is set to manual mode when it is characterized in that welding, and the welding parameter is respectively: 1.5 milliamperes in fritting electric current, 7 milliseconds of fritting times; 2 milliamperes of welding currents; Weld time 0.6 second, 1 millisecond of fltting speed, welding advances 10 microns.
9. hermetic fiber reference gas chamber according to claim 8 is characterized in that said optical fiber splicer is the KL-280 type optical fiber splicer that Nanjing Jilong Optical Communication Co., Ltd. produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205059287U CN202533604U (en) | 2011-12-08 | 2011-12-08 | Hermetical optical fiber reference air space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205059287U CN202533604U (en) | 2011-12-08 | 2011-12-08 | Hermetical optical fiber reference air space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202533604U true CN202533604U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205059287U Expired - Lifetime CN202533604U (en) | 2011-12-08 | 2011-12-08 | Hermetical optical fiber reference air space |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9456496B2 (en) | 2015-02-12 | 2016-09-27 | International Business Machines Corporation | Substrate containing low-Dk-core glass fibers having low dielectric constant (Dk) cores for use in printed circuit boards (PCBs), and method of making same |
| WO2017165381A1 (en) * | 2016-03-21 | 2017-09-28 | Kansas State University Research Foundation | Fluid-filled hollow optical fiber cell |
| CN109781659A (en) * | 2018-12-18 | 2019-05-21 | 武汉市翎风光电科技有限公司 | Reference gas chamber, photodetector with reference gas chamber and preparation method thereof and equipment |
| CN114079219A (en) * | 2020-08-12 | 2022-02-22 | 中国科学院大连化学物理研究所 | Hollow photonic crystal fiber with metal coating and high-pressure air chamber sealing structure |
| US11765825B2 (en) | 2016-01-15 | 2023-09-19 | International Business Machines Corporation | Composite materials including filled hollow glass filaments |
-
2011
- 2011-12-08 CN CN2011205059287U patent/CN202533604U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9456496B2 (en) | 2015-02-12 | 2016-09-27 | International Business Machines Corporation | Substrate containing low-Dk-core glass fibers having low dielectric constant (Dk) cores for use in printed circuit boards (PCBs), and method of making same |
| US9986637B2 (en) | 2015-02-12 | 2018-05-29 | International Business Machines Corporation | Substrate containing low-Dk-core glass fibers having low dielectric constant (Dk) cores for use in printed circuit boards (PCBs), and method of making same |
| US11765825B2 (en) | 2016-01-15 | 2023-09-19 | International Business Machines Corporation | Composite materials including filled hollow glass filaments |
| WO2017165381A1 (en) * | 2016-03-21 | 2017-09-28 | Kansas State University Research Foundation | Fluid-filled hollow optical fiber cell |
| US10534134B2 (en) | 2016-03-21 | 2020-01-14 | Kansas State University Research Foundation | Fluid-filled hollow optical fiber cell |
| CN109781659A (en) * | 2018-12-18 | 2019-05-21 | 武汉市翎风光电科技有限公司 | Reference gas chamber, photodetector with reference gas chamber and preparation method thereof and equipment |
| CN109781659B (en) * | 2018-12-18 | 2020-12-11 | 武汉市翎风光电科技有限公司 | Preparation method of photoelectric detector with reference air chamber |
| CN114079219A (en) * | 2020-08-12 | 2022-02-22 | 中国科学院大连化学物理研究所 | Hollow photonic crystal fiber with metal coating and high-pressure air chamber sealing structure |
| CN114079219B (en) * | 2020-08-12 | 2024-04-26 | 中国科学院大连化学物理研究所 | Hollow photonic crystal fiber with metal coating and high-pressure air chamber sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG MICRO-SENSING PHOTOELECTRONIC CO., LTD. Free format text: FORMER OWNER: LASER INST., SHANDONG SCIENCE ACADEMY Effective date: 20150312 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 272017 JINING, SHANDONG PROVINCE TO: 250101 JINAN, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150312 Address after: Stone Town Licheng District 250101 Shandong city of Ji'nan province by ten Road No. 28789 Shandong Province Academy of Sciences Dong Building Room 301 Patentee after: Shandong Micro-sensor Photonics Limited Address before: 272017, No. 123, Hongxing East Road, Shizhong District, Shandong, Jining Patentee before: Laser Inst., Shandong Science Academy |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |