(2+1)×1 Polarization Maintaining Pump Combiner
| Quantity: | |
|---|---|
| PDF Export | |
Product Description
| Parameter | Spec | Unit | |||
| Port Configuration | (1+1)×1or (2+1)×1 | / | |||
| Pump Wavelength | 800-1000 | nm | |||
| Signal Wavelength | 1030-1080 or 1450-1600 | nm | |||
| Signal InputOptical Fiber | X/125 | X/250 | 20/400 | / | |
| Pump Optical Fiber | MM-S105/125-22A | 105/125or 200/220.0.22NA | / | ||
| Signal OutputOptical Fiber | Y/125 or Y/250 | Y/250 | 20/400 | / | |
| Pump Efficiency | >90 | >93 | >95 | % | |
| Signal Insert loss | ≤0.5 | dB | |||
| Max.power/per pump | ≤50 | ≤100 | ≤200 | W | |
| Polarization Extinction Ratio | ≥18(PM Fiber Type) | dB | |||
| Return Loss | >45 | dB | |||
| Package Dimensions | D1,D2,D3,D4,D5,D6,D7orCustomized | mm | |||
| Operating Temperature | -5~+70 | / | |||
| Storage Temperature | -40~+85 | ℃ | |||
Product Description
The Polarization Maintaining Pump Combiner (PMPC) is a high-power optical component designed to efficiently combine multiple pump laser signals into a single polarization-maintaining (PM) signal fiber while preserving the polarization state. Utilizing advanced fused fiber technology, it integrates multiple pump inputs (typically 2–19 ports) with a single PM output, ensuring low polarization crosstalk and high power handling. The combiner is optimized for wavelengths commonly used in fiber lasers, such as 976 nm, 980 nm, and 1480 nm pump lasers, and supports signal wavelengths from 1030 nm to 1625 nm. Its robust design includes high-temperature epoxy and a metal housing for reliable operation in high-power environments.
Features
High Power Handling: Supports total pump power up to 50 W (CW) with low thermal sensitivity.
Polarization Preservation: Maintains PER ≥25 dB in the output fiber, critical for polarization-sensitive applications.
Efficient Coupling: Typical insertion loss ≤0.5 dB per pump port and signal port, with ≥95% power coupling efficiency.
Customizable Configuration: Available in 2x1, 7x1, 19x1, and custom multi-port designs for diverse laser setups.
Wide Temperature Range: Operates from -20°C to 70°C with minimal performance drift (<±0.2 dB).
Applications
Fiber Laser Systems: Combines multiple pump diodes to achieve high-power, single-polarization laser output for industrial cutting and welding.
Optical Amplifiers: Merges pump light with signal light in polarization-maintaining EDFAs for coherent communication networks.
Medical Lasers: Enables high-power, polarized light sources for ophthalmic surgeries and dermatological treatments.
Research & Development: Used in ultrafast laser systems and quantum computing experiments requiring polarized pump integration.
Aerospace: Reliable pump combining in airborne laser systems with strict size and weight constraints.
Faq
Q: How does the combiner preserve polarization?
A: By using PM fibers for the signal port and aligning pump inputs to the fiber's slow axis, ensuring minimal polarization crosstalk.
Q: Can it combine different wavelength pumps?
A: Yes, as long as the pump wavelengths fall within the specified range (e.g., 976 nm and 980 nm).
Q: What is the maximum signal fiber core diameter?
A: Standard cores are 10 μm, 20 μm, or 30 μm; custom cores up to 100 μm are available for high-power applications.
Q: Does it require active cooling?
A: No, passive thermal management is sufficient for power levels up to 30 W; active cooling is recommended for higher powers.
Q: What is the typical isolation between pump ports?
A: ≥30 dB, minimizing crosstalk between individual pump inputs.
