High Extinction Ratio Optical Isolator (PM Isolator)
High Extinction Ratio Optical Isolator (1310/1480/1550 nm)
FEATURES OF HIGH EXTINCTION RATIO OPTICAL ISOLATOR
- High Extinction Ratio
- Low Insertion Loss
- High Isolation and Return Loss
- High Reliability and Stability
APPLICATIONS OF HIGH EXTINCTION RATIO OPTICAL ISOLATOR
- Optical Communication Systems
- Fiber Laser
- PM Fiber Optic Instrument
- Optical Fiber Sensor
Specifications of High Extinction Ratio Optical Isolator (PM Isolators)
Center Wavelength (nm) 1310, 1480, 1550
Operating Wavelength Range (nm) ±20
Stage Single-stage Dual-stage
Peak Isolation @ 23 ℃ (dB) 42 58
Isolation @ 23 ℃ (dB) ≥28 ≥48
Typ. Insertion Loss @ 23°C (dB) 0.4 0.5
Insertion Loss @ -5 ~ +70 °C (dB) ≤0.55 ≤0.65
Extinction Ratio @ 23 ℃ (only for both axis working) (dB) ≥20 (default), ≥28 ≥20 (default), ≥28
Extinction Ratio @ 23 ℃ (only for fast axis blocked) (dB) ≥25 (default), ≥30 ≥25 (default), ≥30
Return Loss (dB) ≥50
Power Handling (mW) ≤300
Fiber Type PM panda fiber
Package Dimensions (mm) Φ5.5×35
Operating Temperature (°C) -5 to +70
Storage Temperature (°C) -40 to +85
- The high extinction ratio optical isolator (PM Isolator) is customizable, and the above specifications are subject to change without notice.
- For device with connectors, IL is 0.3dB higher, RL is 5.0dB lower, ER is 2.0dB lower.
- Operating on both slow axis and fast axis as standard, slow axis working and fast axis blocked available on request.
- Unless otherwise specified, the slow axis of the fiber is aligned with the key of the PM fiber connector.
- Bare fiber should not support the weight of the connector. So that if you need any connectors, it’s better to choose the 900μm loose tube jacket instead of the 250μm bare fiber.
- For CW high-power optical interconnection, we recommend fusion splice without connectors.
- For product customization or special requirements, please contact Lfiber’s sales department for availability.
Ordering Information for High Extinction Ratio Optical Isolator (PM Isolators)
Center Wavelength Stage Axis Alignment Fiber Type Pigtail Type Fiber Length Connector
1310nm Single-stage Both axis working PM1310 250μm bare fiber 0.5 Meter None
1480nm Dual-stage Slow axis working and fast axis blocked PM1550 900μm loose tube 0.8 Meter FC/UPC
1550nm Others 1.0 Meter FC/APC
1.5 Meter SC/UPC