Smart Product Number: PM850G-80/170-5
850 nm PM Gyroscope & Sensor Fibers
Nufern’s 850 nm PANDA-style PM Gyroscope fibers have extremely high birefringence and exceptionally tight dimensional specifications, critical for manufacturing high precision, high-performance gyro-coils. High consistency and extreme end-to-end control of optical properties provide particular advantage in this application by reducing fiber generated signal artifacts. The intrinsically high level of radiation resistance allows operation for extended periods of time on low earth orbits, near and deep space, and applications where exposure to man-made radiation is expected. The Panda-style configuration is preferred over bow-tie or elliptical clad designs because of its advantages in process scalability and product uniformity. These fibers are offered in industry standard specifications and Nufern's high performance (HP) versions optimized for exceptional splicability and offering the tightest tolerance specifications available.
Optical Specifications
Operating Wavelength
810 – 870 nm
Core NA
0.160
Mode Field Diameter
4.5 ± 0.5 µm @ 850 nm
Cutoff
720 ± 60 nm
Core Attenuation
≤ 5.0 dB/km @ 820 nm
Beat Length
≤ 1.20 mm @ 633 nm
H-Parameter
≤ 3.00000 × 10 -5 m-1 @ 850 nm
Normalized Cross Talk
≤ - 25.0 dB at 100 m @ 850 nm
Geometrical & Mechanical Specifications
Cladding Diameter
80.0 ± 1.0 µm
Core Diameter
3.5 µm
Coating Diameter
170.0 ± 5.0 µm
Coating Concentricity
< 5.0 µm
Core/Clad Offset
≤ 0.50 μm
Coating Material
Acrylate
Operating Temperature Range
-60 to 105 °C
Storage Temperature
-65 to 105 °C
Prooftest Level
≥ 100 kpsi (0.7 GN/m²)
Comments
Coating Requirements: UV Cured, Dual Acrylate.
Features & Benefits
PANDA-style PM — Superior performance, intrinsically good radiation performance
Extremely high birefringence — Less gyroscope drift
Bend insensitive — Smaller diameter coils possible
Excellent crosstalk stability over temperature range — Minimize Shupe (insensitive to temperature drift) effects
HP version with best specifications available — Improved repeatability, coil winding accuracy and splicability
Typical Applications
Fiber optic gyroscopes (FOGs)
Fiber optic voltage and current sensors
Laser pigtailing
Small form factor couplers
Specialty sensors
商品属性 [波长] 810 - 870 nm [掺杂类型] Ge [芯径大小] 3.5 µm [首包层直径] 80 µm [数值孔径] 0.160 [光学包层] Single