1310/1550nm SM Three-Stage Optical Isolator

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The OISM Series 1310/1550 three 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  Dual StageSpecificationUnit
Operation Wavelength (lo)13101310 ± 15nm
C Band1550 ± 15
L Band1585 ± 15
Typical Insertion Loss (lc, 23oC, no connector)≤ 0.6dB
Maximum Insertion Loss (Over lo, 23oC, no connector)≤ 0.8dB
Minimum Isolation (Over lo, 23oC)≥ 55dB
Typical Peak Isolation (lc, 23oC)≥ 70dB
Polarization Dependant Loss≤ 0.15dB
Polarization Mode Dispersion≤ 0.05ps
Return Loss (Minimum, Input/Output)≥ 55dB
Operating Temperature-5 ~ +70oC
Storage Temperature-40 ~ +85oC
Optical Power Handling≤ 400mW
Package DimensionsÆ5.5 x L40mm


P/N: N/A