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2 µm 2+1x1 MM Power Combiner PM signal feedthrough

A side-coupled multimode combiner for 2 µm, available in 1+1x1 and 2+1x1 configurations with a PM signal feed-through fiber and a PM dual clad output fiber.

Full Product Description
Pump input wavelength:
750 – 850 nm
Signal input wavelength:
1900 – 2100 nm
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Product description

A side-coupled multimode combiner for 2 µm, available in 1+1x1 and 2+1x1 configurations with a PM signal feed-through fiber and a PM dual clad output fiber. G&H proprietary manufacturing techniques allow the precise fusion of multimode pump fibers to a PM (polarization maintaining) signal feed-through fiber and a PM dual clad output fiber providing high coupling efficiency over a wide pump wavelength range.

G&H power combiners can be fabricated from a range of industry standard multimode fibers allowing ease of splicing to commercially available laser diodes. Custom options cover large mode area (LMA), large diameter (LDF) and Active signal feed-through fibers and are available on request.

Key features

  • High Coupling Efficiency
  • High power handling

Specifications

NameValue
Pump input fiber NA0.15 or 0.22
Pump input wavelength750 – 850 nm
Signal input wavelength1900 – 2100 nm
Pump (MM) transmission efficiency≥90% (Typ: >95%) ¹
Signal PER (polarization extinction ratio)≥17 dB
Return loss≥40 dB
Operating temperature-5° C – +75° C
Storage temperature-40° C – +85° C

Feedthrough option10/130 µm 0.15/0.45 NAPM1950+10/130 µm
Signal transmission efficiency ²≥93% (typ. >97%)≥90%

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 790 nm as standard.
² Signal (feed-through) transmission efficiency reported at center wavelength

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