High Power Circulator

Neptec’s Polarization Insensitive, high power Optical Circulator is a non-reciprocal device that routes incoming signals from any port to the next. An optical circulator transmits the signal from port 1 to port 2, while simultaneously transmitting signal from port 2 to port 3. Neptec’s high power optical circulators are used in advanced fiber amplifier systems, laser pump diodes and optical fiber sensors.

Neptec offers a wide range of customization options including power handling, fiber type, polarization maintaining (PM), and packaging. If the standard circulator below do not fit your application, we would be glad to review your specifications and quote a custom high-power circulator for you.

Product Information

Key Features

• Low insertion loss
• Low Polarization Dependent Loss (PDL)
• High Isolation
• High Power Handling
• PM and Non-PM are available
• Customized Configurations For Any Application


• Fiber Laser system


Parameter Unit Typical
Operating Signal Wavelength nm 980, 1030, 1060 or Custom
Bandwidth nm ±5
Peak Isolation dB ≥30
Isolation In Band dB ≥25
Insertion Loss dB ≤1.5
Extinction Ratio dB ≥20 (SCF), ≥18 (DCF)
Return Loss dB ≥45
Fiber Type - Customizable
Max Power Handling W 10 (CW)
Operating Temperature °C (-5) to +500
Storage Temperature °C (-20) to +770