Description
The CSRayzer Polarization Maintaining Filter Wavelength Division Multiplexer (PMFWDM-1550/980 Series) is a compact and high-performance optical component designed to separate or combine wavelengths with precision in polarization-maintaining (PM) fiber systems.
Utilizing advanced thin-film filter technology, it operates on the principle of wavelength-selective filtering, transmitting one wavelength while reflecting another. It supports a 1550 nm pass and 980 nm reflect configuration and is ideal for use in erbium-doped fiber amplifiers (EDFAs), fiber laser systems, and other PM applications.
The component features low insertion loss, excellent isolation, high extinction ratio (≥20 dB), and low polarization-dependent loss (≤0.1 dB). The slow axis is aligned for transmission, while the fast axis is blocked, ensuring precise polarization control.
The device is capable of handling up to 500 mW of average optical power, with a robust design housed in a Ø5.5 × 35 mm steel tube for enhanced mechanical stability. Whether for continuous wave or pulse applications, the PMFWDM provides long-term reliability and performance across a broad operating temperature range of 0°C to +75°C.
Polarization Maintaining 1550/980nm WDM - PMFWDM-1550/980-5.5*35-PM1550/Hi1060-1-0-N-F
Specifications
| Operating Wavelength: | 1550 nm |
|---|---|
| Operating Bandwidth: | 1550 nm |
| Isolation (min): | 30 dB |
| Max Power Handling: | 0.5 W |
| Polarization Maintaining: | Yes |
| Structure: | 1*2 |
| Fiber Type: | PM1550/Hi1060 |
| Extinction Ratio: | 20 dB |
| Reflection Wavelength: | 980 ± 20 nm |
| Insertion Loss (Passband): | ≤0.8 dB |
| Insertion Loss (Reflection): | ≤0.8 dB |
| Polarization Dependent Loss: | ≤0.1 dB |
| Return Loss: | ≥50 dB |
| Average Optical Power: | ≤500 mW |
| Extinction Ratio: | ≥20 dB |
| Fiber Length: | 1.0 ± 0.2 m |
| Working Axis: | Slow Axis, Fast Axis Blocked |
| Package Size: | Ø5.5 × 35 mm |
| Operating Temperature: | 0 to +75 °C |
| Storage Temperature: | -40 to +85 °C |
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Features
- Polarization Maintaining Design: Ensures stable performance with slow axis transmission and fast axis blocked
- High Isolation: ≥30 dB in the passband, ensuring clean signal separation
- Low Insertion Loss: ≤0.8 dB for both pass and reflect wavelengths
- High Extinction Ratio: Maintains polarization purity with ≥20 dB
- High Return Loss: Minimizes back reflection with ≥50 dB return loss
- Compact & Durable: Stainless steel package (Ø5.5 × 35 mm) for robust deployment
- High Power Handling: Supports up to 500 mW average optical power
Applications
- EDFA Pump Laser Combiners: Efficiently manage signal and pump light
- Fiber Laser Systems: Combine or separate laser wavelengths with PM integrity
- Quantum Communication: Supports polarization-sensitive applications
- Sensor Networks: Reliable wavelength separation in harsh environments
- Laboratory Research: Ideal for polarization-sensitive photonics experiments
Frequently Asked Questions
What is the main function of the PMFWDM-1550/980 Filter WDM?
Why is polarization maintaining (PM) important in this device?
What is the maximum optical power the device can handle?
Can this device operate under harsh environmental conditions?
What fiber types are available with this WDM?
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