Ctogry introduction of fiber connecto

发表于 2015 年 08 月 20 日 由 jilongen

Fiber connector according to the different can be divided into common transmission medium of silicon-based single-mode and multimode optical fiber connectors, and other such as such as plastic optical fiber connector for transmission medium; According to the connection head structure can be divided into: FC, SC, ST, LC, D4, DIN, MU, MT, etc. Various forms.Among them, the ST connector is typically used for wiring devices, such as optical fiber distribution frame, fiber module, etc;The SC and MT connectors are normally used for network devices.According to the optical fiber end face shape with FC, PC (including SPC or UPC) and APC;According to the classification and single core and multicore of optical fiber some (such as MT – RJ).Widely used optical fiber connector, wide variety.In the process of practical application, we usually according to different to distinguish between the structure of the optical fiber connector.

 

 

Fiber Connector KL-51

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The cautions of optical power meter

发表于 2015 年 08 月 12 日 由 jilongen

Optical power meter is used to measure the absolute optical power, or by a fiber optical power relative to the depletion of the instrument.In the optical fiber system, optical power measurement is the most basic, much like the multimeter electronics;In the optical fiber measurement, optical power meter is a commonly used table heavy load.

Light power is the unit of DBM in optical transceiver or switch the instruction of the light emitting and receiving optical power, usually light emitting less than 0 DBM, the receiver can receive the minimum light power called sensitivity, can receive the maximum light power minus the sensitivity of the unit is the db (DBM – DBM = db), called dynamic range, luminous power minus the receiving sensitivity is to allow the fiber CuiHaoZhi. When testing the actual luminous power minus the actual received light power of value is the fiber attenuation (db).The receiver receives the light power optimal value is to be able to receive the maximum light power – (dynamic range / 2), but usually not so good. Because each optical transceiver and optical module of dynamic range is different, so the fiber concrete can allow attenuation much depends on the actual situation, generally allow the attenuation of about 15 to 30 db.

Some instructions can only two parameters, luminous power and transmission distance sometimes shows how much per km optical fiber attenuation to calculate the transmission distance, mostly is 0.5 db/km with minimum transmission distance divided by 0.5, which is able to receive the maximum light power, if the receiving optical power is higher than the value, optical transceiver may be burn out. With the maximum transmission distance is divided by 0.5, is sensitivity, if  received light power is lower than this value, the link may be blocked.

 

Optical Power meter KL-310

 

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Operation method of fiber cleaver

发表于 2015 年 08 月 06 日 由 jilongen

Fiber cleaver is the new development of a new type of fiber laser output laser beam of high energy density, and gathered in the workpiece surface, the workpieces is super fine focus light irradiation area moment melting and gasification, move the light to shine through numerical control mechanical system and automatic cutting.

1, Confirm that the sliding plate of the blade is in front of the front end, open the platen size;

2, with peel fiber pliers strip optical fiber coating layer, the reserved long naked degrees for 30 to 40 mm, dip in with alcohol cotton wool or cotton paper fiber, then wipe off the fiber.Use absorbent cotton or cotton paper to wipe a, don’t use the same cotton wool or cotton paper to wipe the second (note: please use the purity is more than 99% alcohol).

3, visual optical fiber coating layer on the edge on the cutter rod (12 ~ 20 cm) after the appropriate scale, left hand to press the fiber into the guide groove, require bare fiber straight on the left and right rubber MATS.

4, close the small plate, pressure plate, driving device with blade slider, make blade row cut fiber under the surface, and free sliding to the other side, to cut off the fiber;

5, the left hand to hold the cutter, the right hand to open the clamp and remove fiber debris, in fixed container.

6, knead a optical fiber at the same time, the right hand with his left hand to open small clamp, carefully remove the cut end face of optical fiber, note: clean the fiber cross section and don’t touch it.

 

 

Fiber Cleaver with Collector KL-21C

 

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The use methods of fiber cleaver

发表于 2015 年 07 月 30 日 由 jilongen

The use of the most common method of fiber cleaver are basically the same:

1, stripping cable and the cable fixed to the pan fiber frame. Common optical cable are gysts, skeleton and central tube cable, different fiber optic cable to take different stripping methods, strip after good will cable fixed to a dish rack.

2, will strip away after the fiber through the heat shrinkable tube, respectively.Separate optical fiber for different tube, different color, through the heat shrinkable tube, respectively.

3, open the welding electrical source, choose the right means of welding.Common type optical fiber specifications are: SM dispersion of single-mode optical fiber displacement (ITU – T G. 652), the MM multimode fiber (ITU – T G. 651), the DS dispersion-shifted single-mode fiber (ITU – T G. 653), NZ non-zero dispersion-shifted fiber (ITU – T G. 655), BI bending resistant fiber (ITU – T G. 657), etc., according to the different fiber type to choose the right means of welding, and the latest optical fiber welding machine have the function of automatic identification of optical fiber, can automatically identify the various types of optical fiber.

4, preparation of optical fiber end face.Optical fiber end face of good or bad will directly affect the quality of welding, so must be preparation before welding qualified end face.With dedicated wire stripping tool strip coating layer, then use stained using alcohol to clean linen cloth or cotton on the bare fiber brush try several times, using precision fiber optic fiber cutting knife cutting, to 0.25 mm (coating) fiber, cutting length is 8 mm – 16 mm, to 0.9 mm (coating) fiber, cutting length can be only 16 mm.

5, place the optical fiber.Put fiber V groove welding machine, fiber board and fiber fixture on careful pressure, according to the fiber cutting length is set in the positions of the platen, and correctly into the wind cap.

6, in place of optical fiber.After press the continue button, the optical fiber phase moving, moving process, produce a short discharge clean surface of fiber, when the gap between the optical fiber end face right after welding machine stop moving, violent set initial gap, welding machine measurement, and display the cutting Angle.After completion of the initial gap setting, begin to execute the fiber core and cladding, and then reduce gap welding machine (the final clearance  setting), electric arc of high voltage discharge in the fiber optical fusion on the left to the right, the microprocessor and numerical calculate loss displayed on the screen.If the wastage of the estimate value higher than expected, can press set key to discharge, discharge welding machine will be calculated after the loss.

7, take out the optical fiber reinforced fiber and heater melting point.Open the wind cap, fiber optics from the welding machine, and then moved to the location of the contact melting, heat shrinkable tube in the heater heating, heating after take out the optical fiber from the heater.Operation, because of the high temperature, do not touch the heat shrinkable tube and ceramic part of the heater.

8, pan fiber and fixed.Will be good optical disc into the fiber holding plate, fixed fiber, shelter plate, connector box, terminal box, etc., the operation is complete.

 

Fiber Cleaver with Collector KL-21C

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The summary of OTDR

发表于 2015 年 07 月 22 日 由 jilongen

OTDR, full name: optical time domain reflectometer, is based on the analysis of the measured curve, It’s a machine according to understand the performance about uniformity, defect, fault, joint coupling etc. The performance of several instruments. It according to optical backscatter and Fresnel principle of reverse, when the use of light propagation in optical fiber attenuation of backscatter light to get information, can be used for measuring optical attenuation, splicing loss, fiber optic fault point positioning, and understand the status of loss distribution along the length of optical fiber, etc., is an essential part of fiber optic cable construction, maintenance and monitoring tools.

OTDR according to optical backscatter and principle of Fresnel reverse production, when the use of light propagation in optical fiber attenuation of backscatter light to get information, can be used for measuring optical attenuation, splicing loss, fiber optic fault point positioning, and understand the status of loss distribution along the length of optical fiber, etc., is an essential part of fiber optic cable construction, maintenance and monitoring tools.

 

Handheld OTDR KL-6210

 

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The Maintenance Of Fusion Splicer

发表于 2015 年 07 月 16 日 由 jilongen

The vulnerability consumables of fusion splicer is the discharge electrode. The basic discharge 4000 times around the need to replace the new electrode.

Change electrode method:

First, take down the protective cover of the electrode chamber, loosen the screw on the electrode, take out the upper electrodes.Then loosen the screw of the under electrode, take out the under electrodes. The installation of a new electrode order is opposite with remove the action, require two electrode tip clearance is: 2.6 + / – 0.2 mm, and symmetry with optical fiber. Normally the electrode do not needto adjusted. In the process of change should not touch the electrode tips, in case of damage, and should avoid the electrode fall in the machine internal.

After replacement of electrode shall be arc position calibration or oneself do processing, polishing again, but changes the length of the corresponding welding parameters are also need to make changes.

 

Fusion Splicer KL-350E

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Fiber connector

发表于 2015 年 06 月 26 日 由 jilongen

Fiber connector, it is removable (activities) connection device between optical fiber and optical fiber connection device,  it is the two end of the optical fiber precision docking, to make the optical fiber output of light energy to maximize the coupling to the receiving optical fiber, and optical link due to the intervention and to minimize the effects on the system, it is the basic requirement of optical fiber connector.To a certain extent,  the optical fiber connector affects the reliability and performance of the optical transmission system.
Used for repeatable plug connection between optical fiber devices, also known as optical fiber active connector. The main performance parameters (and typical values) : insertion loss (< 0.5 dB), plug repeatability and interchangeability between the connector (change in 500 times), etc. When used for large capacity high-speed transmission system, also requires small reflection.

Fiber Connector KL-51

(source:http://www.jilongfiber.com/news/fiber-connector.html)

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The synopsis of Fusion splicer

发表于 2015 年 06 月 17 日 由 jilongen

Fusion splicer mainly include optical fiber welding machines and high frequency welding machine, ultrasonic welding machine, rotary welding machine, etc. Widely used in all walks of life, gifts, toys, supplies, optical fiber cable line construction, line maintenance, emergency repair,  production test of fiber optic devices and scientific research institutes of research teaching. Mainly by the discharge of the arc will be two optical fiber fusion, at the same time by using the principle of the collimating gently forward, in order to realize the coupling of optical fiber mode field. Note: the optical fiber is every fiber in the fiber optic cable.

Fusion Splicer KL-350E

(source:http://www.jilongfiber.com/news/the-synopsis-of-fusion-splicer.html)

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Optical power meter

发表于 2015 年 06 月 10 日 由 jilongen

Optical power meter is used to measure the absolute optical power, or by a fiber optical power relative to the depletion of the instrument.In the optical fiber system, optical power measurement is the most basic, much like the multimeter electronics;In the optical fiber measurement, optical power meter is a commonly used table heavy load.By measuring the transmitting terminal machine or the absolute power of the optical network, an optical power meter can evaluate the performance of the light end equipment.Combinations of light power meter and stability of light source, is able to measure the connection loss, continuity test, and help to evaluate quality of fiber optic link transmission

Optical Power meter KL-310

(source:http://www.jilongfiber.com/news/optical-power-meter.html)

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Laser source

发表于 2015 年 06 月 03 日 由 jilongen

Laser source, the use of excited state particles under the action of stimulated radiation light electric light source.Is a kind of coherent light source.Since 1960, the United States of T.H. maiman made since ruby laser, has amounted to hundreds of varieties of all kinds of laser light source, output wavelength range from short-wave ultraviolet to far-infrared.Laser light source according to its working substance (also known as activated substances) divided into solid laser source (crystal and neodymium glass), gas laser source (including atoms, ions, molecules, excimer), liquid laser source (including organic dyes, inorganic liquid, chelate) and semiconductor laser source four types.

Visual Fault Locator DS350

 

(source:http://www.jilongfiber.com/news/laser-source.html)

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