Tilted FBG

ARTICLE GTL-FBG-TL-860

Fiber Bragg Gratings have many applications in optical communication, laser technique and sensing systems. The FBGs are widely used like in-fiber mirrors or optical filters with narrow band optical spectrum. FBGs can be used like a sensitive element for strain and temperature measuring.

The Tilted FBG has an angle between wave vector of the grating and fiber axis. Therefore cladding modes resonances peaks become more intensive compared to ordinary gratings. TFBG cladding modes resonances wavelength are highly sensitive to the refractive index of the medium outside the fiber cladding. TFBGs are useful in sensing applications. Possible value of tilt angle is 1⁰ - 45⁰. The TFBG transmission spectrum of 10mm length with tilt angle of 3⁰ is presented in the graph.

 

 

 

 

 

 

 

 

 

 

 

 

 

FBG CHARACTERISTICS

ARTICLE GTL-FBG-TL-860

TOLERANCE/NOTE

Wavelength range, nm

600÷ 2300

± 0.1 ÷ ± 1 custom request

Types of fiber

Single-Mode, PM, Double clad, LMA

or custom

Wavelength to quick order, nm

633, 780, 852, 940, 976, 1030, 1060, 1064, 1063 ÷ 1078 (chirp), 1080, 1125, 1150, 1178, 1240, 1270, 1310, 1484,1510 ÷ 1580, 1650, 1874 ÷ 1878 (chirp), 1900, 1908, 1952, 2300

± 0.1 ÷ ± 1 custom request

Tilt angle, °

1 ÷ 45

custom request

Reflectivity, %

5 ÷ 99,9

2 ÷ 5 custom request

Bandwidth (WFHM), nm

0.1 ÷0.8

custom request

FBG Length, mm

1 ÷ 20

custom request

SLSR, dB

~ 8

custom request

FBG Pigtail Length, m

≥ 0.5

or custom

FBG Recoating

None, Acrylate, Polyimide, Aluminium, Copper

or custom

Tensile Strength, kpsi

› 100

 

Optical Connector

Bare fiber, FC/APC, LC/APC

or custom

 

 Tilted FBG (Article GTL-FBG-TL-860)

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