1650nm Dual Stage 3 Port Optical Circulator P Grade SMF 28e Low Loss High Isolation FC APC Steel Tube

The 1650±5nm two-stage three-port optical circulator is a high-performance passive optical device designed for fiber optic line monitoring, OTDR testing, PON network maintenance, and optical measurement systems. The product employs a two-stage optical structure, enabling directional transmission of optical signals between different ports while effectively suppressing backlight, port crosstalk, and signals from non-target directions.

• 1650±5nm Operating Wavelength
  Designed for the 1650nm fiber optic monitoring and testing band, suitable for online line diagnostics and dedicated optical measurement systems.
• Two-Stage Optical Structure
  Compared to conventional single-stage structures, the two-stage design provides more stable isolation performance and stronger crosstalk suppression capabilities.
• Low Insertion Loss
  Insertion loss IL≤1.5dB helps reduce the device's impact on the system's optical power budget.
• High Return Loss
  Return loss RL ≥ 50dB reduces the impact of end-face reflections on the stability of lasers, detectors, and test systems.
• Stable Isolation Performance
  Isolation ISO ≥ 33dB effectively suppresses back-transmitted optical signals.
• High Crosstalk Suppression
  Crosstalk ≥ 50dB reduces interference from non-target signals between different ports.
• SMF-28e Single-Mode Fiber
  Utilizes industry-standard single-mode fiber for easy integration with existing optical communication and test systems.
• Full FC/APC Connector Configuration
  All three ports use FC/APC connectors, suitable for optical systems with high reflection performance requirements.
• Color-coded Port Identification
  P1 red, P2 blue, P3 white for easy production assembly, testing, and field maintenance.
• Reliable Steel Tube Encapsulation
  Compact φ5.5*50mm steel tube encapsulation provides stable mechanical protection for the internal optical structure.
• Includes PMD Testing
  Neutral English test reports may include PMD and key optical performance test data, facilitating customer quality verification and project archiving.

• 1650nm OTDR Fiber Optic Test System
• FTTH and PON Online Monitoring System
• Fiber Optic Line Fault Detection
• Fiber Optic Network Maintenance Equipment
• Optical Test and Measurement Instruments
• Bidirectional Fiber Optic Communication System
• Fiber Optic Sensing System
• Laser and Optical Amplifier Protection
• Customized Passive Optical Modules
• Laboratory Optical Path and R&D Test Platform