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3-Port (2+Combiner for 915nm & 940nm Wavelengths - 45W Power Handling by China Suppliers and Factory
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 characteristics, 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
Frequently Asked Questions
What is a (2+1)*1 Combiner?
The (2+1)*1 Combiner is a specialized optical device designed to combine 2 pump lights and 1 signal light into a single double-clad fiber. It is widely used in high-power fiber lasers and fiber amplifiers.
What is the typical insertion loss of this combiner?
The signal insertion loss is exceptionally low, typically ≤0.4dB (with standard specifications showing ≤0.3dB). This minimizes optical signal energy loss during combining to maintain high signal strength.
What wavelength ranges does the combiner support?
It features a broad wavelength range, with a pump operating wavelength range generally between 780-1000nm (standard 800-1000nm) and a signal operating wavelength range of 1530-1575nm (standard 1530-1570nm).
What are the primary applications of this product?
This combiner is mainly applied in optical fiber communication systems, Cable TV (CATV) systems, and passive optical networks (PON).
Can the configuration of the combiner be customized?
Yes, the device is customizable. We can provide custom configurations based on specific user requirements, including custom fiber types, port configurations, and other optical properties.