3-Port (2+1) Combiner, Single Port Power Handling 45W, 915nm & 940nm Wavelengths,
Product Inquiry: +86 15610114544
Product description
The (2+1)*1 Combiner is a device that combines 2 pump lights and 1 signal light into a single double-clad fiber. It is primarily used in high-power fiber lasers and fiber amplifiers. Its product features are:
• Low Insertion Loss: Signal insertion loss is typically low, generally ≤0.4dB. Reduces optical signal energy loss during combining, maintaining signal strength and improving overall system efficiency.
• High Pump Efficiency: High pump efficiency, typically ≥93%. Effectively couples pump light energy into the signal light, enabling efficient transmission of pump and signal light within the same fiber.
• Broad Wavelength Range: Adapts to a wide wavelength range. Pump wavelength range generally 780-1000nm, signal wavelength range 1530-1575nm. Meets the needs of different types of lasers and amplifiers.
• High Power Handling: Single-arm power handling capability up to 45W. Applicable in high-power fiber laser systems, suitable for high-power operating scenarios.
• High Return Loss: Return loss typically >45dB. Effectively reduces optical signal reflection, minimizing interference from reflected light, and improving system stability and reliability.
• Good Polarization Characteristics: For polarization-maintaining (PM) types, Polarization Extinction Ratio (PER) ≥18dB. Maintains the polarization state of the signal light, meeting application scenarios requiring specific polarization特性, such as PM fiber lasers.
• Strong Environmental Adaptability: Operating temperature range -20°C to 70°C, storage temperature -40°C to 85°C. Good environmental adaptability enables stable operation under different conditions.
• Customizable: Can provide custom configurations based on user requirements, including fiber type, port configuration, etc., meeting specific application needs of different users.
Product Applications
● Optical fiber communication system
● Cable TV
● Passive optical network
Product Parameters
| (1+1)*1& (2+1)*1 combiner specification | ||||
| Items | Supplier | Standard | Unit | |
| Signal Operating Wavelength | --- | 1530~1570 | nm | |
| Pump Operating Wavelength | --- | 800~1000 | nm | |
| Signal Insertion Loss | P4-2 | ≤0.3 | dB | |
| Pump Efficiency | P1-4&P3-4 | ≥90 | % | |
| Output Signal To Pump ISO | P4-1&P4-3 | ≥30 | dB | |
| Max Power Handing Each Port | Typ. | 25 | W | |
| Fiber Length | P1/P2/P3 | ≥1 | m | |
| P4 | ≥0.9 | m | ||
| Temperature Range | --- | -20~70 | ℃ | |
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| Definition of optical fiber | ||||
| Fiber optic Definition | Type of optical fiber | External connectivity | Color | Length (m) |
| P1&P3 | MM | Pump | Red & Blue | ≥1 |
| P2 | SM | Isolator | black | ≥1 |
| P4 | DC (double peel layer) | EYDF | transparent | ≥0.9 |
| (Erbium ytterbium co-doped fiber) | ||||
Product Size


Fiber Amplifier Products
Light Source&Light Harvesting Products
Optical Device Products
Subsystem Products
Instruments and Meters
Communication Field
Sensing Field
Laser Radar
Research and Medical Care

