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:
- 1530 - 1565 nm (1550 nm) or 1030 – 1090nm (1064 nm)
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 | 1530 - 1565 nm (1550 nm) or 1030 – 1090nm (1064 nm) |
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.
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