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fbg

Fiber Bragg grating(FBG)  - is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others. This is achieved by creating a periodic variation of the refractive index of the fiber core, which generates a wavelength specific dielectric mirror.

TECHNOLOGY

Femtosecond laser

 

writing through the coating, in a non-photosensitive fiber

high thermal stability

Excimer laser

 

writing throug a phase mask.

Large pusle energy and spatial coherence of the beam. Large quantities of FBGs

Ar-Ion laser

 

Writing of complex types of FBG for different application in a wide range of wavelengths.

 

FBG Ordering Form

 

Center Wavelength

Reflectivity

FWHM*

Coating Material

Connector

Quantity

700 – 2000 nm

2 – 99 %

0.1 – 3 нм

Acrylate

Polyimide

No coating

No connector
FC/PC
FC/APC
Other

Center Wavelength

Reflectivity

FWHM*

Coating Material

Connector

Quantity

*FWHM - Full width at half maximum



Special features:


FBG writing through the coating; Tilted FBG; FBG in non-photosensitive fiber (pure quartz core, etc.);
Chirped FBG; FBG spliceless chains; Custom profile;
Apodized FBG; π-shifted FBG; Special fibers (Panda, active, PCF, etc.)


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