CN104483736A - Simple micro optical fiber attenuation method - Google Patents
Simple micro optical fiber attenuation method Download PDFInfo
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- CN104483736A CN104483736A CN201410652212.8A CN201410652212A CN104483736A CN 104483736 A CN104483736 A CN 104483736A CN 201410652212 A CN201410652212 A CN 201410652212A CN 104483736 A CN104483736 A CN 104483736A
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- optical fiber
- micro optical
- centimetres
- diameter
- beam signal
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
- G02B6/266—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting the optical element being an attenuator
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a simple micro optical fiber attenuation method. The method includes the following steps that: a cylinder with circular blocking plates is provided; a 2 cm V-shaped opening is formed in the circular blocking plates at the two ends of the cylinder respectively, and the diameter of the circular blocking plates is 6 cm, and the upper end at the width direction of each V-shaped opening is slightly larger than the diameter of a commonly-used micro optical fiber, and the lower end of the V-shaped opening is slightly smaller than the diameter of the commonly-used micro optical fiber, and the V-shaped openings are used for fixing the entering end and outgoing end of the micro optical fiber; the jumper of the micro optical fiber is wound for a certain number of loops according to a calculated light beam signal attenuation value of each loop, so that light beam signals can be attenuated to an appropriate DB level, and therefore, a simple micro optical fiber manual attenuator can be fabricated; the number of wound loops can be adjusted through the simple micro optical fiber manual attenuator, so that light beam signals can be attenuated by a certain numerical value, and therefore, equipment, instruments and devices can work normally, and can complete tasks in construction fast, simply and easily.
Description
Technical field
The invention relates to the manual attenuating device field of simple and easy micro optical fiber in a kind of optical fiber installation, debugging, service work.Be specifically related to a kind of simple and easy micro optical fiber damped system.
Background technology
In optical fiber installation, debugging, often relevant devices is connected with a bit of micro optical fiber wire jumper in service work, instrument and device, and often kind of equipment, instrument and device have the laser beam signal input intensity data xxxdB designed separately, actual fiber installation, debugging, often will in main cable interface access relevant devices in service work, instrument and device, just usually can because of the too high cisco unity malfunction of main cable interface laser beam signal input intensity, because optical cable must have the loss of suitable numerical value at work, so strong at certain section of optical cable input end laser beam signal, and it is normal at certain section of optical cable output terminal laser beam signal, this is higher than the laser beam damping capacity of this certain section optical cable total length and the normal signal sum of output terminal in origin or beginning laser beam signal intensity, the normal transmission of guarantee whole lightguide cable link laser beam signal.Fiber middle light signal operation wavelength has 850,1300,1550 three kinds, optical fiber attenuation maximal value is about 0.22dB ~ 0.25dB/km, and its formula is: a=10lgpi/po unit is that wherein Pi is input optical power values (W) PO to db/Km is Output optical power value (W).Sometimes can because of height the laser beam signal of these dB; relevant devices, instrument and device are because automatically protect and cisco unity malfunction; not portable with finished product optical fiber attenuation device first; and want the conversion of numerous converter inconvenient; sometimes building site many finished products optical fiber attenuation device distributes and does not come, and invent a kind of simple effective method solve the problem often run in this construction be very in the urgent need to.
Summary of the invention
Frequent because the too high relevant devices of main cable interface laser beam signal input intensity, instrument and a device cisco unity malfunction difficult problem for solving this, the object of this invention is to provide a kind of simple and easy micro optical fiber damped system.
For achieving the above object, the technical solution used in the present invention is: this one is micro optical fiber damped system easily, it is characterized in that operating in the steps below: with a diameter 1, 5 centimetres, there is the right cylinder of the round plate washer of diameter 6 centimetres at long 30 centimetres of two ends, the round plate washer of two ends diameter 6 centimetres is opened one 2 centimetres of V-type openings, V-type A/F upper end is slightly larger than conventional micro optical fiber diameter, lower end is slightly less than conventional micro optical fiber diameter, come in and go out in order to fixing micro optical fiber and hold, material is organic glass or engineering plastics, long 30 centimetres, diameter 1.5 centimetres of cylinders are carved with Luo spin line groove, in order to fixing around superincumbent micro optical fiber, control the coiling number of turns of micro optical fiber wire jumper on simple and easy micro optical fiber attenuator (length 30 centimetres, diameter 1.5 centimetres are carved with the organic glass cylinder of Luo spin line groove), the laser beam signal of suitable decay db number can be obtained, the laser beam signal attenuation xdb numerical value around 100 circles is measured with more accurate fiber-optic signal strength instrument, namely show that often circle db is about equivalent divided by 100, that is: a=xdb/100 db, circular plate washer numerical value being imprinted on the manual attenuator of simple and easy micro optical fiber is easy to calculate, makes it in construction, fast, simply, easily complete its task, beam signal is decayed to suitable db level by the number of turns that micro optical fiber wire jumper lays out some by good often circle beam signal pad value, micro optical fiber wire jumper one termination cable signal test port, another head joint equipment, instrument and device, decay beam signal being done certain numerical value by the Ben Jianyi micro optical fiber damped system adjustment coiling number of turns makes it equipment, instrument and device and can normally work.
The beneficial effect of technique scheme is adopted to be: optical fiber construction handbook and technical requirement often to drum in optical fiber and install and want straight, the flexibility beyond construction technical requirement can not be had, the meaning is for first being to damage optical fiber when the radius-of-curvature of fibre-optical bending is less than some value, second is that light signal can repeatedly reflect reflection loss and can sharply increase in less radius-of-curvature optical fiber, think deeply conversely according to this principle, cylinder micro optical fiber wire jumper being less than two centimetres at diameter has the damping capacity of the laser beam signal of certain db around tens circle to circles up to a hundred, and damage is not afraid of by micro optical fiber wire jumper, on this cylinder around tens circles not only very easily but also fast.When testing in actual field by this principle, the good results are evident, originally because the relevant devices of the too high cisco unity malfunction of main cable interface laser beam signal input intensity, instrument and device can normally connect employs.Technical barrier obtains good solution, simple and fast easy construction, as long as suitably control the coiling number of turns of micro optical fiber wire jumper on simple and easy micro optical fiber attenuator (long 30 cm diameter 1,5 centimetres is carved with the organic glass cylinder of Luo spin line groove), the laser beam signal of suitable decay db number can be obtained, the laser beam signal attenuation xdb numerical value around 100 circles is measured with more accurate fiber-optic signal strength instrument, namely show that often circle db is about equivalent divided by 100, that is: a=xdb/100 (db).Fiber middle light signal operation wavelength has 850,1300,1550 three kinds, the laser beam signal of these three kinds of operation wavelengths is all made survey record get off, the laser beam signal attenuation xdb numerical value of each circle of the manual attenuator of about simple and easy micro optical fiber calculated or every ten circles, circular plate washer numerical value being imprinted on the manual attenuator of simple and easy micro optical fiber is easy to calculate, makes it in construction, fast, simply, easily complete its task.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, specific embodiment of the invention is described in further detail.
Fig. 1 is simple and easy micro optical fiber attenuator connection diagram.
Embodiment
Ben Jianyi low-light estate agent damped system as shown in Figure 1, it is characterized in that operating in the steps below: with a diameter 1,5 centimetres, there is the right cylinder of the round plate washer of diameter 6 centimetres at long 30 centimetres of two ends, the round plate washer of two ends diameter 6 centimetres is opened one 2 centimetres of V-type openings, V-type A/F upper end is slightly larger than conventional micro optical fiber diameter, lower end is slightly less than conventional micro optical fiber diameter, come in and go out in order to fixing micro optical fiber and hold, material is organic glass or engineering plastics, length 30 centimetres, diameter 1.5 centimetres of cylinders are carved with Luo spin line groove, in order to fixing around superincumbent micro optical fiber; Control the coiling number of turns of micro optical fiber wire jumper on simple and easy micro optical fiber attenuator (length 30 centimetres, diameter 1.5 centimetres are carved with the organic glass cylinder of Luo spin line groove), the laser beam signal of suitable decay db number can be obtained, the laser beam signal attenuation xdb numerical value around 100 circles is measured with more accurate fiber-optic signal strength instrument, namely show that often circle db is about equivalent divided by 100, that is: a=xdb/100 db; Circular plate washer numerical value being imprinted on the manual attenuator of simple and easy micro optical fiber 1 is easy to calculate, makes it in construction, fast, simply, easily complete its task; Beam signal is decayed to suitable db level by the number of turns that micro optical fiber wire jumper lays out some by good often circle beam signal pad value, micro optical fiber wire jumper one termination cable signal test port 2, another head joint equipment, instrument and device 3, decay beam signal being done certain numerical value by the Ben Jianyi micro optical fiber damped system adjustment coiling number of turns makes it equipment, instrument and device and can normally work, and makes it in construction, fast, simply, easily complete its task.
Claims (1)
1. an easy micro optical fiber damped system, it is characterized in that operating in the steps below: with a diameter 1,5 centimetres, there is the right cylinder of the round plate washer of diameter 6 centimetres at long 30 centimetres of two ends, the round plate washer of two ends diameter 6 centimetres is opened one 2 centimetres of V-type openings, V-type A/F upper end is slightly larger than conventional micro optical fiber diameter, lower end is slightly less than conventional micro optical fiber diameter, come in and go out in order to fixing micro optical fiber and hold, material is organic glass or engineering plastics, length 30 centimetres, diameter 1.5 centimetres of cylinders are carved with Luo spin line groove, in order to fixing around superincumbent micro optical fiber; Control the coiling number of turns of micro optical fiber wire jumper on simple and easy micro optical fiber attenuator (length 30 centimetres, diameter 1.5 centimetres are carved with the organic glass cylinder of Luo spin line groove), the laser beam signal of suitable decay db number can be obtained, the laser beam signal attenuation xdb numerical value around 100 circles is measured with more accurate fiber-optic signal strength instrument, namely show that often circle db is about equivalent divided by 100, that is: a=xdb/100 db; Circular plate washer numerical value being imprinted on the manual attenuator of simple and easy micro optical fiber is easy to calculate, makes it in construction, fast, simply, easily complete its task; Beam signal is decayed to suitable db level by the number of turns that micro optical fiber wire jumper lays out some by good often circle beam signal pad value, micro optical fiber wire jumper one termination cable signal test port, another head joint equipment, instrument and device, decay beam signal being done certain numerical value by the Ben Jianyi micro optical fiber damped system adjustment coiling number of turns makes it equipment, instrument and device and can normally work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410652212.8A CN104483736A (en) | 2014-11-18 | 2014-11-18 | Simple micro optical fiber attenuation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410652212.8A CN104483736A (en) | 2014-11-18 | 2014-11-18 | Simple micro optical fiber attenuation method |
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| CN104483736A true CN104483736A (en) | 2015-04-01 |
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| CN201410652212.8A Pending CN104483736A (en) | 2014-11-18 | 2014-11-18 | Simple micro optical fiber attenuation method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2204679A (en) * | 1987-04-30 | 1988-11-16 | Univ Manchester | Fibre optic sensor |
| CN1416008A (en) * | 2002-12-06 | 2003-05-07 | 武汉理工大学 | Optical fiber type variable optical attenuator |
| CN102207584A (en) * | 2010-03-29 | 2011-10-05 | 西安金和光学科技有限公司 | All-fiber precision variable optical attenuator |
| CN101881633B (en) * | 2010-04-06 | 2012-11-28 | 西安金和光学科技有限公司 | Spring type high-precision optical fiber sensor based on optical fiber bending loss |
-
2014
- 2014-11-18 CN CN201410652212.8A patent/CN104483736A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2204679A (en) * | 1987-04-30 | 1988-11-16 | Univ Manchester | Fibre optic sensor |
| CN1416008A (en) * | 2002-12-06 | 2003-05-07 | 武汉理工大学 | Optical fiber type variable optical attenuator |
| CN102207584A (en) * | 2010-03-29 | 2011-10-05 | 西安金和光学科技有限公司 | All-fiber precision variable optical attenuator |
| CN101881633B (en) * | 2010-04-06 | 2012-11-28 | 西安金和光学科技有限公司 | Spring type high-precision optical fiber sensor based on optical fiber bending loss |
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Application publication date: 20150401 |