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The Polarization Maintaining Isolator WDM is a hybrid device that has functions of WDM and isolator in a single compact package. The PMIWDM is characterized with low insertion loss, high extinction ratio, high isolation, high return loss and excellent environmental stability and reliability. It is ideal choice for fiber amplifier application to combine signal and pump wavelength with stable signal isolation.
Key Features:
* Low insertion loss
* High extinction ratio
* High isolation
* Excellent stability and reliability
Applications:
* Fiber lasers
* Fiber amplifiers
Specifications:
Type Parameter | Unit | Polarization Maintaining Isolator WDM | |||
Single Stage | Dual stage | Single Stage | Dual stage | ||
Operating wavelength | nm | T1064±5/R980±15 | T1530~1580/R980±15 | ||
IL over pass band @23℃ | dB | ≤2.3 | ≤3.5 | ≤0.8 | ≤1.0 |
IL over reflection band | dB | ≤0.6 | |||
Extinction ratio (Only for Signal Port) | dB | ≥20(Type B) ≥23(Type F) | |||
Isolation for signal @23℃ | dB | ≥30 | ≥45 | ≥30 | ≥46 |
Return loss | dB | ≥50 | |||
Fiber type | / | PM fiber for common & pass port; PM fiber or SM fiber for reflect port | |||
Handling power | mW | ≤300 | ≤500 | ||
Operating temperature | ℃ | -5~+50 | -5~+70 | ||
Storage temperature | ℃ | -40~+85 | |||
Dimensions | mm | Ф5.5× L35 or Ф3.0× L30 |
Type B: Both axis working, Type F: for Fast axis blocked.
IL is 0.3dB (1310~1550nm) or 0.5dB (1064nm) higher, RL is 5dB lower and ER is 2dB lower for each connector added. The default connector key is aligned to slow axis.