1310/1550nm SM Single-Stage Optical Isolator

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The OISM Series 1310/1550 single stage optical isolator is a passive device that guides light at 1310/1550 nm in the normal direction while minimizing back reflection and back scattering in the reverse direction for any state of polarization. Employing Agiltron’s proven advanced micro optics design, it features low insertion loss, extremely high isolation, compact structure, and high stability. These Telcordia-qualified components have excellent characteristics, making them an ideal choice for application in fiber amplifier systems, pump laser diodes and optical fiber sensors.


  • Low Insertion Loss
  • High Isolation
  • Low PDL
  • High Reliability
  • Low Cost


  • Optical Fiber Amplifier
  • Pump Laser Source
  • Fiber Optic Sensor
  • Instrumentation


OISM Single StageSpecificationUnit
Operation Wavelength (lo)13101310 ± 15nm
C Band1550 ± 15
L Band1585 ± 15
Typical Insertion Loss (lc, 23oC, no connector)≤ 0.3dB
Maximum Insertion Loss (Over lo, 23oC, no connector)≤ 0.5dB
Minimum Isolation (Over lo, 23oC)≥ 30dB
Typical Peak Isolation (lc, 23oC)≥ 41dB
Polarization Dependant Loss≤ 0.1dB
Polarization Mode Dispersion *≤ 0.2ps
Return Loss (Minimum, Input/Output)≥ 60dB
Operating Temperature-5 ~ +70oC
Storage Temperature-40 ~ +85oC
Optical Power Handling≤ 400mW
Package DimensionsÆ5.5 x L34 or

Æ3.0 x L30

  * Special order for PMD ≤ 0.05ps with compensator


P/N: N/A