2+1x1 MM Power Combiner PM Signal Feedthrough
A multimode combiner available in a 2+1x1 configuration, with a PM signal feed-through fiber and a PM dual clad output fiber. Supported pump input wavelengths range from 780 – 1000 nm while signal input wavelengths range from 1530 – 1565 nm or 1030 – 1090 nm.
Full Product Description- Pump Input Wavelength:
- 780–1000 nm
- Signal Input Wavelength:
- 1064 nm, 1550 nm
- Configuration:
- 2+1x1
Product description
A multimode combiner in a 2+1x1 configuration, with a PM signal feed-through fiber and a PM dual clad output fiber. Supported pump input wavelengths range from 780 – 1000 nm while signal input wavelengths range from 1530 – 1565 nm or 1030 – 1090 nm. G&H proprietary manufacturing techniques allow the precise fusion of multimode pump fibers to a PM signal feed-through fiber and an PM dual clad output fiber, providing high coupling efficiency over a wide pump wavelength range.
Inclusion of the splice between the passive and active signal fiber within the combiner housing removes the need for an external splice reducing potential back-scatter to the pump sources. G&H power combiners can be fabricated from a range of industry standard fibers allowing ease of splicing to commercially available laser diodes, signal and gain fibers. Custom variants using non-standard fibers are available on request.
Key features
- High Coupling Efficiency
- High power handling
Specifications
| Name | Value |
|---|---|
| Pump input fiber NA | 0.15 or 0.22 |
| Pump Input Wavelength | 780–1000 nm |
| Signal Input Wavelength | 1064 nm, 1550 nm |
| Configuration | 2+1x1 |
| Pump (MM) transmission efficiency | ≥ 90% (Typ: 95%) ¹ |
| Signal transmission efficiency | ≥ 93% (typ. 97%) ² |
| Signal PER (polarization extinction ratio) | ≥ 20 dB |
| Return loss | ≥ 40 dB |
| Operating temperature | 0° C – +65° C |
| Storage temperature | -40° C – +85° C |
Specifications
All specifications are for operation at room temperature.
¹ MM transmission efficiencies based on typical system mode fill conditions and 0.5 m pigtails. Reported at 975 nm as standard.
² Signal (feedthrough) transmission efficiency reported at center wavelength.
Order code
Guidance on how to create an order code is available in Downloads below.