DWDM Phase Shift Fiber Grating 1550nm Reflectivity 90% PM Fiber

Phase Shift Fiber Grating Central Wavelength 1550nm Reflectivity 90% PM Fiber

Phase Shift Fiber Grating DWDM 1550nm Fabry-Perot Lower Loss

Phase Shift Fiber Grating Description:

Phase Shift Fiber Grating means: through leading in Refractive Index moudulation sudden changes On the optical Fiber Bragg Grating certain place, it generate two FBGs with fixed phase shift sudden changes at this place.

The two FBGs similar choose Fabry-Perot and allow light with resonant wavelength to insert into fiber bragg grating resistance band and to open a narrow linearity refractive window during resistance band.

Application:

• At Laser industrial , Phase shift fiber grating is mainly for Lower noise single frequency Ultra-narrow Linewidth Fiber laser, or for Single Frequency Semiconductor Laser Diode with External feedback realizing ultra-narrow linewidth laser output.

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  Other area, Phase shift fiber grating mainly is used as demultiplexer in DWDM system,which can be highly influenced by the shift degree, Position and shift points quantity.

Feature:

Ultra-narrow linewidth , Multi channels, Flexible Combination ,Lower Insert Loss , Low Polarization Dependent Loss.

Technical specification:

Beijing Samyon Instruments Co., Ltd is specializing on designing, developing and selling concrete Pile Testing Instruments and Optical fiber bragg Grating(FBG. )

1.Concrete Pile Testing Instruments includes: High strain dynamic pile tester, Pile integrity tester, Static pile loading tester, Ultrasonic crosshole pile tester, Ultrasonic drillhole monitor, Nonmetal ultrasonic detector and NDT (Non Destructive Testing) equipments, construction instruments, and laboratory instruments, such as, Concrete resistivity tester, Concrete migration tester, Concrete penetration tester, Crack width/depth meter, Rebar location system, Test hammer, Strength tester, Concrete defect tester, Corrosion tester, Colorimeter, Hardness tester, Ultrasonic flaw detector, Concrete testing equipment, Soil testing equipment, Cement testing equipment, Asphalt testing equipment, and so on . The company takes the science and technology as the guide, with strict management and strong research and development team.

    High Strain Dynamic Pile Tester (Also named PDA by PDI company. )  ;  Low Dynamic Pile Tester (PIT or PET for short); Untrasoic Crosshole Pile Tester for 2, 3 ,4 channels.; Drillhole Monitor  (Also named Koden from Japan company. )

High Strain Dynamic Pile Tester projects at field. If clients need, we also can do the testing compare with PDA from PDI company. We already have done testing at different countries. We got very good feedback from our professional pile testing clients and relative company. 

Low Strain Dynamic Pile Tester at field with our software;  Static Load Pile testing at field with our software. 

Drill hole monitor testing at field with 100meter depth, with automatic stop function to save untrosonic sensor drop in wells making lost for inspection company.  We also can supply drillhole monitor with 150m depth.

2. Optical Fiber Bragg Grating for temperature and Strain gauge

As FBG strain gauge and temperature sensor are popular in construction monitor system, we also concentrate in this aspects for many years. DTS. DVS system. 

Our Lab for optical fiber bragg grating 

Oven Humidity and temperature testing. 

SAMYON will follow the operation principle to pay more attention to the needs of customers and provide the high quality, competitive products and convenient services to the market with outstanding research and development ability and the exquisite technology.
With more than 10years experiments, SAMYON commits us supply professional line instruments and service to our clients refers to Building, Bridge, Highway, Channel, Airport and so on. At present, we have many international customers from European countries, UK, USA, Thailand, India, Indonesia, South Africa, Pakistan, Singapore, Austrilia, Vietnam, Russia, Brazil, Chile, and so on.