1. Product Overview
This 1550nm dual-stage polarization-maintaining isolator uses Corning PM1550 polarization-maintaining fiber, operates at a wavelength of 1550±15nm, and supports 0.5W optical power.
2. Product Features

- Dual-stage polarization-maintaining isolator structure
- Operating wavelength range: 1550±15nm
- Insertion loss IL≤0.9dB
- Isolation ISO≥45dB
- Polarization extinction ratio ER≥21dB
- Return loss RL≥55dB
- Optical power handling capacity: 0.5W
- Uses Corning PM1550 polarization-maintaining fiber
- Slow-axis operation, fast-axis blocking
- Arrow on the steel tube surface for indicating the direction of optical signal transmission
- Encapsulated in Ø5.5*38mm steel tube
- Equipped with 0.9mm blue fiber optic sleeve
- Total length including connector: 100±10cm
- Equipped with FC/APC fan-port connector
- Operating temperature range: -5~+70℃
- Equipped with a number tube for easy product identification and management
- Includes a neutral English test report
- Packaged in a blister pack
3. Applications:
- 1550nm polarization-maintaining fiber laser
- Polarization-sensitive optical communication systems
- Fiber optic amplifiers and laser optical paths
- Coherent optics and interferometry systems
- Fiber optic sensing and precision testing equipment
- Reverse optical feedback suppression
- Polarization-maintaining passive device testing
- Optical instruments and system integration