Description
The Ascentta PM 3-Port Optical Circulator (TGG Type) is designed for polarization-maintaining fiber optic applications operating across a wide range of wavelengths including 532, 635, 650, 780, 850, 980, 1030, and 1060 nm. It utilizes high-quality TGG crystals and advanced optical path alignment to provide efficient signal routing with minimal insertion loss and high isolation between ports.
This circulator enables non-reciprocal transmission in the 1→2→3 path while blocking reverse directions, making it ideal for demanding laser-based systems, interferometry setups, and optical sensing solutions. With a minimum extinction ratio of 18–20 dB, return loss of ≥45 dB, and directivity of ≥40 dB, it ensures reliable performance under varied environmental conditions. The circulator supports optical power handling up to 250 mW, depending on the wavelength, and is available with customizable connector types and fiber lengths.
Built to meet stringent performance standards, the PM 3-Port Optical Circulator comes in a rugged cylindrical housing, ensuring long-term durability and precision alignment for polarization-sensitive applications.
Ascentta Polarization Maintaining Fiber Circulator (850nm)
Specifications
Type Of The Device: | Circulator |
---|---|
Operating Wavelength: | 850 nm |
Max Power: | 0.15 W |
Min Isolation: | 21 dB |
Insertion Loss (Fast Axis Block) (1→2, Or 2→3) Max.: | 1.8 dB |
Extinction Ratio Min.: | 20 dB |
Return Loss Min.: | 45 dB |
Directivity (1→3, Or 3→1) Min.: | 40 dB |
Fiber Length: | 3.0 m |
Operating Temperature: | 10 to +50 °C |
Storage Temperature: | 0 to +60 °C |
Package Dimensions (Cylinder): | Φ21×L60 mm |
Optical Power Handling (Max): | 50 mW |
Features
- Polarization Maintaining: Designed for PM fibers, with extinction ratios up to 20 dB
- Wide Wavelength Range: Available for 532, 635, 650, 780, 850, 980, 1030, and 1060 nm
- Low Insertion Loss: As low as 1.5 dB depending on the selected wavelength
- High Isolation: Typical isolation up to 27 dB ensures minimal signal leakage
- High Return Loss & Directivity: ≥45 dB return loss and ≥40 dB directivity for superior signal integrity
- Robust Design: Compact cylindrical packaging with customizable fiber type, length, and connectors
- Reliable Power Handling: Supports up to 250 mW optical power, ideal for moderate to high power applications
Applications
- Laser Systems: Ideal for optical routing in high-precision laser setups
- Interferometry: Maintains polarization for sensitive optical measurement systems
- Fiber Optic Sensing: Suitable for distributed or point sensing applications requiring low loss and high isolation
- Biomedical and Scientific Instrumentation: Supports wavelength-specific applications in life sciences and R&D
- Quantum and Nonlinear Optics: Facilitates directional signal control in polarization-dependent experiments
Frequently Asked Questions
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What is the typical and minimum isolation in dB?
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What is the minimum return loss in dB?
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