Part #:
PM1550G-80

1550 nm Polarization Maintaining Gyroscope & Sensor Fiber

Nufern’s 80 μm 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 this family to operate for extended periods of time on low earth orbits, near and deep space, and in applications where risk of exposure to man-made radiation is great. The Panda-style configuration is preferred over bow-tie or elliptical clad designs because of its advantages in process scalability (for its cost impact) and product uniformity. These fibers are available for operation at 850, 1300 and 1550 nm wavelengths.
Applications
  • Fiber optic gyroscopes (FOGs)
  • Fiber optic voltage and current sensors
  • Laser pigtailing
  • Small form factor couplers
  • Specialty sensors
Features & Benefits
  • PANDA-style PM — Superior performance, intrinsically good radiation performance
  • Extremely high birefringence — Less gyroscope drift
  • Exceptionally tight dimensional control — Uniform, deterministic gyroscope coil performance
  • Bend insensitive — Smaller diameter coils possible
  • Excellent crosstalk stability over temperature range — Minimize Shupe (insensitive to temperature drift) effects

Optical Specifications

Operating Wavelength1520–1620 nm
Mode Field Diameter6.3 ± 0.5 µm @ 1550 nm
Second Mode Cut-Off1460 ± 60 nm
Attenuation≤ 2 dB/km @ 1550 nm
Beat Length1.2 mm @ 633 nm
Normalized Cross Talk≤ -25 dB at 100 m (nominal)
H-Parameter (nominal)≤ 3 x 10-5 m-1

Geometrical & Mechanical Specifications

Clad Diameter80.0 ± 1.0 µm
Coating Diameter170 ± 5 µm
Core-Clad Concentricity< 0.5 µm
Coating/Clad Offset≤ 5 µm
Coating MaterialUV Cured, Dual Acrylate
Operating Temperature-60 to +105 °C
Storage Temperature-65 to +105 °C
Proof Test Level≥ 100 kpsi (0.7 GN/m²)

RoHS Compliant