“Figure 1” Type PMF

Description

'Figure1' type polarization maintaining fibers have outstanding indigenous innovation structure. It has very small stress domain structure by drawing dual advantages of tie type and elliptical jacket type polarization maintaining fiber. The stress area is only 1/3 ～ 1/4 of PANDA type，but the PM effect is same or even better. The temperature performance, bending resistance performance and intensity properties are greatly improved.
This type of fiber have been already applied to navigation, location and attitude control system of various platforms like sea and air successfully.

Features

Low attenuation characteristics;

Great consistency;

Good polarization maintaining capability;

Bending stability;

Excellent birefringence effect;

UV-cured dual coating structure;

High environmental stability and reliability;

Small stress area;

Specification

Product Type	125/245		80/165(135*)		60/100
Optical Properties
Operating Wavelength (nm)	1310	1550	1310	1550	1310	1550
Cutoff Wavelength (nm)	≤1290	≤1510	≤1290	≤1510	≤1290	≤1510
Mode Field Diameter (μm)	6.0±0.5	6.5±0.5	6.0±0.5	6.5±0.5	6.0±0.5	6.5±0.5
Beat-length (mm)	≤3.0	≤3.5	≤3.0	≤3.5	≤3.0	≤3.5
Attenuation (dB/km)	≤1.0		≤1.0		≤1.0
Polarization Crosstalk (dB) /1000m	≤-23		≤-23		≤-20
Geometry Properties
Cladding Diameter (μm)	125.0±1.0		80.0±1.0		60.0±1.0
Coating Diameter (μm)	245.0±5.0		165.0±3.0 / 135.0±3.0 *		100.0±3.0
Core/Clad Offset (μm)	≤1.0		≤1.0		≤1.0
Clad Non-Circularity (%)	≤1		≤1		≤1
Mechanical Properties
Operating Temperature Range (℃ )	-45~+85		-45~+85		-45~+85
Proof Test Level (kpsi)	100		100		100

* Coating diameter is optional.

“Figure 1” Type PMF

Description

Features

Applications

Specification

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