In-Line Fiber Optic Polarizers


  • High extinction ratio
  • Near zero back reflection
  • Low insertion loss
  • Low cost
  • Large operating bandwidth
  • Small size
  • All-fiber configuration
  • Rugged packaging


Evanescent Field Technology
FiberLogix in-line, all-fiber polarizers are manufactured using a proprietory unique evanescent
field substrate fabrication technology. This enables the polarizer to be fabricated directly onto
the fiber and does not interrupt the optical path. FiberLogix polarizers are available in a series
of performance grades and typical specifications are shown overleaf - choosing the right match
of polarizer to your application allows you to balance component cost and performance.
These devices can be tailored to meet a very wide range of operating environments and
applications - please contact our technical design team to discuss your specific requirements.

No internal interfaces to reflect light
Unlike alternative technologies, there are no free space optics and no internal interfaces to
reflect light. This means back reflections are very low, at least <-70dB, and the polarizers can be used for higher power applications, right next to the source. No interruptions to the optical path The optical path remains within the fiber at all times so Insertion Loss is kept to a minimum. The fiber is the transmission medium throughout and this allows excellent bandwidth and optical power performance.


  • Return loss
  • >70dB
  • Broadband
  • 1280 - 1625nm
  • Extinction Ratio (SM/SM)
  • >50dB
  • Extinction Ratio (SM/PM)
  • >40dB
  • Extinction Ratio (PM/PM)
  • >35dB
  • Insertion loss (typical) (SM/SM)
  • <0.5dB
  • Insertion loss (typical) (SM/PM)
  • <1dB
  • Insertion loss (typical) (PM/PM)
  • <1.5dB
  • Packaging Size (SM/SM)
  • 50 x 2mm
  • Packaging Size (SM/PM)
  • 75 x 3mm
  • Packaging Size (PM/PM)
  • 100 x 3mm
  • Operating Temperature
  • -5°C to 70°C
  • Transportation & Storage
  • -40°C to 85°C
  • Pigtail Options
  • 1m fiber standard, 900µm tube optional
  • Connectors
  • Optional
  • Fiber Type (SM/SM)
  • SMF 28
  • Fiber Type (SM/PM)
  • SMF 28/Panda
  • Fiber Type (PM/PM)
  • Panda
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  • PMD measurement systems
  • PDL measurement systems
  • Optical transmission systems
  • Optical fiber sensors
  • High-coherence transmission
  • Fiber Optic Gyroscope - FOG
  • Instrumentation
  • Navigation Equipment
  • Military applications
  • Aerospace applications