4x4 PM Fiber Optic Coupler 1310nm 1550nm 25:25:25:25 Splitting Ratio ABS Box Package
4x4 PM Fiber Optic Coupler, 1550nm, 25:25:25:25 Splitting Ratio, ABS Box Package
The 4*4 PM Fiber Coupler is a multi-port polarization-maintaining optical splitter based on a filter structure. It can distribute one or more input beams in the 1550 nm band equally in proportion to four output beams in a 25:25:25:25 ratio, suitable for polarization-maintaining systems requiring multi-channel power distribution and monitoring.
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4*4 proportional power distribution for simpler multi-channel systems
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Low Insertion Loss and Low Redundant Loss for Easier Link Budgeting
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Good Extinction Ratio for Both Slow and Fast Axis Applications
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High Return Loss and High Directivity, Suppressing Reflection and Crosstalk
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Reliable Power and Environmental Adaptability
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Standardized Platform for Convenient Selection and Integration
| Parameters | Unit | 4x4 |
|---|---|---|
| Splitting Ratio | nm | 25:25:25:25 |
| Operating Wavelength | nm | 1550 |
| Operating Bandwidth | nm | ±15 |
| Insertion loss | dB | ≤7.5 |
| Max. Excess Loss | dB | ≤1.2 |
| Extinction Ratio | dB | ≥20 |
| Return Loss | dB | ≥50 |
- EDFA / Fiber Optic Amplifier
- Fiber Optic Instrument
- Coherent Communication
- Power Monitoring
- Fiber Optic Sensor
FAQ
Q1: What are the splitting ratio and operating wavelength of this 4×4 PM Coupler?
A: The standard splitting ratio of this product is 25:25:25:25, the operating wavelength is 1550nm, and the operating bandwidth is ±15nm. It is suitable for uniform power distribution applications in C-band polarization-maintaining fiber systems.
Q2: What are the main performance advantages of this product?
A: This product uses Corning Panda Fiber, featuring low insertion loss, high extinction ratio, high return loss, and high directivity. Its insertion loss is ≤7.5dB, maximum additional loss is ≤1.2dB, extinction ratio is ≥20dB, return loss is ≥50dB, and directivity is ≥50dB, which can improve polarization stability and transmission reliability in multi-port systems.
Q3: Does this 4×4 Filter PM Coupler support customization?
A: Customization is supported. Customers can choose the fiber length, connector type, fiber sheath, and packaging form according to their needs. The standard fiber length is 1.0±0.1m, and the connector can be FC/APC, FC/UPC or other customized types; the connector key is aligned with the slow axis by default, which facilitates the integration of the polarization-maintaining system.
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