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
Hot Products
3-Port (2+Combiner, 45W Power Handling at 915nm & 940nm - High Reliability | China Suppliers & 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 | ℃ | |
| 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
Q
What is the primary function of the (2+1)*1 Combiner?
The (2+1)*1 Combiner is designed to combine 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 to optimize light merging and power delivery.
Q
What are the key optical performance specifications of this combiner?
It features a low signal insertion loss (typically ≤0.4dB, with standard specifications showing ≤0.3dB), high pump efficiency (typically ≥93%, standard ≥90%), and a high return loss of >45dB to ensure minimal reflection and high stability.
Q
What operating wavelengths does the combiner support?
The combiner operates across broad wavelength ranges: the pump operating wavelength is 800nm to 1000nm (general range 780-1000nm), and the signal operating wavelength is 1530nm to 1570nm (general range 1530-1575nm).
Q
What is the power handling capability of the ports?
The single-arm power handling capability is up to 45W, with a typical standard specification of 25W maximum power handling for each port, making it ideal for high-power fiber laser systems.
Q
Can the fiber configuration be customized for specific systems?
Yes, custom configurations are available based on user requirements. This includes options for different fiber types, port configurations, and customization to suit polarization-maintaining (PM) setups.
Q
What are the main application areas for this device?
The combiner is widely used in optical fiber communication systems, cable TV (CATV) systems, passive optical networks (PON), as well as high-power fiber lasers and fiber amplifiers.