Original
By certification 
Elliptical Core Polarization-maintaining Fiber (ECF)
1. Introduction
ECF manufactured by YOEC has the characteristics of excellent temperature stability & polarization-maintaining performance, which can be widely used in the field of fiber optic gyroscope, current transformer and other polarization-related devices.
CVD process is used to fabricate the core rod, which improves the elliptical core structure, optimizing the structure design of fiber core and improving the uniformity & polarization-maintaining performance of the fiber. The ECF belongs to the geometrical birefringence-typed polarization-maintaining fiber, which is less affected by the environmental temperature and has better temperature stability.
2. Fiber Geometry
3. Technical parameters
Characteristics |
Unit |
Specifications |
|||
Product Type |
ECF13-125-U25 |
ECF13-80-U16 |
ECF15-80-U13 |
ECF15-80-U16 |
|
|
Optical Properties |
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operating wavelength |
nm |
1310 |
1310 |
1550 |
1550 |
cutoff wavelength |
nm |
1100 ~ 1290 |
1100 ~ 1290 |
1290 ~ 1520 |
1290 ~ 1520 |
mode field diameter |
µm |
6.0 ± 1.0 |
6.0 ± 1.0 |
6.5 ± 1.0 |
6.5 ± 1.0 |
attenuation |
dB/km |
≤ 1.0 |
≤ 1.0 |
≤ 1.0 |
≤ 1.0 |
beat length |
mm |
3.0 ~ 80.0 |
≤ 3.0 |
≤ 4.0 |
≤ 4.0 |
typical crosstalk |
dB |
≤ -25 (100m) |
≤ -25 (1000m) |
≤ -25 (1000m) |
≤ -25 (1000m) |
|
Geometrical Properties |
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cladding diameter |
µm |
125.0 ± 1.0 |
80.0 ± 1.0 |
80.0 ± 1.0 |
80.0 ± 1.0 |
coating type |
/ |
double-layer UV curable acrylic resin |
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coating diameter |
µm |
245.0 ± 3.0 |
168.0 ± 3.0 |
135.0 ± 2.0 |
168.0 ± 3.0 |
cladding non-circularity |
% |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
core/cladding concentricity |
µm |
≤ 1.0 |
≤ 1.0 |
≤ 1.0 |
≤ 1.0 |
|
Environmental & Mechanical Properties |
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Operating temperature |
ºC |
-45 ~ +85 |
-45 ~ +85 |
-45 ~ +85 |
-45 ~ +85 |
proof tension |
kpsi |
100 |
100 |
100 |
100 |
4. Advantages
● Fiber optic gyroscope
● Fiber current transformer
● Fiber laser and amplifier
5. Application
● Low loss & high bending performance
● Good geometric uniformity
● High operational stability & reliability
● Temperature insensitive
Customization Information
● The cladding diameter & coating diameter of the fiber can be customized according to the customer requirement.
● The ratio of long to short axis in the fiber core can be customized according to the customer requirement with the maximum ratio of four.
● The beat length of the fiber can be customized according to the customer requirement.
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