PM Fiber with Panda-type Structure for Small Bend Radius (R7.5 & R5 mm) and Low Attenuation in Polarization-Sensitive Devices for sale

Categories	Fiber Optic Gyroscope
Operating Temperature:	-55~+85 ℃
Mode Field Diameter:	5.5±0.5 @850nm, 6.5±0.5, 9.0±0.5, 10.5±0.5 μm
Coating Diameter:	245.0±7.0, 165.0±5.0 μm
Attenuation:	≤4.0, ≤2.5, ≤0.5, ≤0.5 dB/km
Cladding Diameter:	125.0±1.0, 80.0±0.5 μm
Operating Wavelength:	780, 980, 1310, 1550 nm

Product Details
Company Profile

PM Fiber with Panda-type Structure for Small Bend Radius (R7.5 & R5 mm) and Low Attenuation in Polarization-Sensitive Devices

PM Fiber for Device

Product Introduction

PM (Polarization-Maintaining) fiber for device applications is a specialty fiber designed for polarization-sensitive devices. It adopts the Panda-type structure with regular and symmetric "dual circular" stress rods, where the core and the two stress rods are aligned in a straight line.

This fiber features excellent birefringence, polishability, low attenuation, and precise, stable geometric dimensional consistency. Bend-insensitive PM fibers feature strict cladding diameter geometric tolerances, compatible with R7.5 and R5 small bend radius applications.

They are widely suitable for various polarization-sensitive devices and PM arrays, laying the foundation for the development of cutting-edge communication fields such as AI computing infrastructure, data center interconnects (DCI), coherent optical communication backbone networks, and quantum communications.

Product Features

Excellent polarization-maintaining performance
Excellent polishability
Good consistency and uniformity
Strict geometric tolerances
Small bend radius (R7.5 & R5 mm)
Compliant with RoHS and REACH standards

Applications

Polarization-sensitive devices
PM device pigtails
Laser pigtails
Miniaturized polarization-sensitive devices
Bend-sensitive devices
PM arrays
CPO (Co-Packaged Optics)

Standard PM Fiber for Devices

Parameter	PM780-125/245G	PM980B-125/245G	PM1310C-125/245G	PM1550D-125/245G
Optical Specification
Operating Wavelength (nm)	780	980	1310	1550
Cutoff Wavelength (nm)	650~770	800~970	1100~1290	1290~1520
Mode Field Diameter (μm)	5.5±0.5 @850nm	6.5±0.5	9.0±0.5	10.5±0.5
Attenuation (dB/km)	≤4.0	≤2.5	≤0.5	≤0.5
Beat Length (mm)	≤3.0	≤3.0	≤3.0	≤3.0
Crosstalk @100m (dB)	≤-30	≤-30	≤-40	≤-40
Crosstalk @4m (dB)	≤-40	≤-40	≤-50	≤-50
Geometric & Material Specification
Cladding Diameter (μm)	125.0±1.0	125.0±1.0	125.0±1.0	125.0±1.0
Coating Diameter (μm)	245.0±7.0	245.0±7.0	245.0±7.0	245.0±7.0
Cladding Non-Circularity (%)	≤1.0	≤1.0	≤1.0	≤1.0
Core-Clad Concentricity (μm)	≤0.5	≤0.5	≤0.5	≤0.5
Coating Structure	Dual-layer UV-Acrylate
Environmental & Mechanical Specification
Operating Temperature (℃)	-55~+85	-55~+85	-55~+85	-55~+85
Proof Test (kpsi)	≥100	≥100	≥100	≥100

Bend-Insensitive PM Fiber for Devices

Parameter	PM1310-125/245G-BI	PM1550-125/245G-BI	PM1310-125/245G-BIR5	PM1550-125/245G-BIR5
Optical Specification
Operating Wavelength (nm)	1310	1550	1310	1550
Cutoff Wavelength (nm)	1100~1260	1290~1520	1100~1260	1290~1520
Mode Field Diameter (μm)	7.8±0.5	9.0±0.5	7.8±0.5	9.0±0.5
Attenuation (dB/km)	≤3.0	≤3.0	≤3.0	≤3.0
Beat Length (mm)	≤3.0	≤3.0	≤3.0	≤3.0
Bending Crosstalk (dB)	≤-30 @1310nm (dia.15mm, 10turns)	≤-30 @1550nm (dia.15mm, 10turns)	≤-30 @1310nm (dia.10mm, 10turns)	≤-30 @1550nm (dia.10mm, 10turns)
Macrobending Loss (dB)	≤0.1 @1310nm (dia.15mm, 10turns)	≤0.1 @1550nm (dia.15mm, 10turns)	≤0.1 @1310nm (dia.10mm, 10turns)	≤0.1 @1550nm (dia.10mm, 10turns)
Geometric & Material Specification
Cladding Diameter (μm)	125.0±1.0	125.0±1.0	125.0±1.0	125.0±1.0
Coating Diameter (μm)	245.0±7.0	245.0±7.0	245.0±7.0	245.0±7.0
Cladding Non-Circularity (%)	≤1.0	≤1.0	≤1.0	≤1.0
Core-Clad Concentricity (μm)	≤0.5	≤0.5	≤0.5	≤0.5
Coating Structure	Dual-layer UV-Acrylate
Environmental & Mechanical Specification
Operating Temperature (℃)	-55~+85	-55~+85	-55~+85	-55~+85
Proof Test (kpsi)	≥100	≥100	≥100	≥100

Version: 202605

Reduced-Diameter Bend-Insensitive PM Fiber for Devices

Parameter	PM1310-80/165G-BIR5	PM1550-80/165G-BIR5
Optical Specification
Operating Wavelength (nm)	1310	1550
Cutoff Wavelength (nm)	1100~1260	1290~1520
Mode Field Diameter (μm)	7.4±0.5	8.6±0.5
Attenuation (dB/km)	≤3.0	≤3.0
Beat Length (mm)	≤3.0	≤3.0
Bending Crosstalk (dB)	≤-30 @1310nm (dia.10mm, 10turns)	≤-30 @1550nm (dia.10mm, 10turns)
Macrobending Loss (dB)	≤0.5 @1310nm (dia.10mm, 10turns)	≤0.5 @1550nm (dia.10mm, 10turns)
Geometric & Material Specification
Cladding Diameter (μm)	80.0±0.5	80.0±0.5
Coating Diameter (μm)	165.0±5.0	165.0±5.0
Cladding Non-Circularity (%)	≤1.0	≤1.0
Core-Clad Concentricity (μm)	≤0.5	≤0.5
Coating Structure	Dual-layer UV-Acrylate
Environmental & Mechanical Specification
Operating Temperature (℃)	-55~+85	-55~+85
Proof Test (kpsi)	≥100	≥100

PM Fiber with Panda-type Structure for Small Bend Radius (R7.5 & R5 mm) and Low Attenuation in Polarization-Sensitive Devices

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