Bow-Tie Polarization-Maintaining Fiber

Bow-Tie Polarization-Maintaining Fiber

The bow-tie polarization-maintaining fiber is a specially designed stress-induced polarization-maintaining fiber whose structural features provide excellent polarization-maintaining performance. The fiber offers optimized axial uniformity and batch-to-batch consistency, along with outstanding temperature stability and birefringence properties. It is widely used in fiber optic gyroscopes, fiber optic current transformers, and other polarization-sensitive components and devices.

Product features：Excellent birefringence performance；Good geometric uniformity；Excellent reliability；Excellent temperature performance

Part Number：MP-BTF13-80-U16

Application area：Fiber optic gyroscopes | Fiber optic current transformers | Polarization-maintaining couplers | Pigtails for high-speed modulators

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Main parameters
General Parameters
Optional Configurations
Downloads

Main parameters

Core parameters

Operating Wavelength Cladding Diameter

1310 nm / 1550 nm 80.0±1.0μm / 125.0±1.0μm

Dimension Drawing

General Parameters

Parameter	Unit	Product Specifications
Model	/	MP-BTF13-80-U16	MP-BTF13-125-U25	MP-BTF15-80-U16	MP-BTF15-125-U25
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	≤1.5	≤1.5	≤1.5	≤1.5
Beat Length	mm	≤2.5	≤2.5	≤3.0	≤3.0
Typical Crosstalk	dB	≤-25	≤-25	≤-25	≤-25
Cladding Diameter	μm	80.0±1.0	125.0±1.0	80.0±1.0	125.0±1.0
Core‑Cladding Concentricity	μm	≤1.0	≤1.0	≤1.0	≤1.0
Cladding Non-Circularity	%	≤2.0	≤2.0	≤2.0	≤2.0
Coating Type	/	Dual‑layer UV‑cured acrylate
Coating Diameter	μm	168.0±3.0	245.0±3.0	168.0±3.0	245.0±3.0
Operating Temperature	℃	-45～+85	-45～+85	-45～+85	-45～+85
Proof Test Level	kpsi	100	100	100	100

Customization

Customization is available upon request for parameters such as operating wavelength, mode field diameter, beat length, geometric dimensions, coating material, and proof test level.

Optional Configurations

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Product title: Bow-Tie Polarization-Maintaining Fiber

Product link: https://www.idealphotonics.com/product/detail/1854.html

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