2+1x1 Multimode Power Combiner with Active PM Signal Feedthrough
Fused Fiber Tapered Fiber Bundle
Gooch & Housego proprietary manufacturing techniques allow the precise fusion of multimode pump fibers to a PM signal feed-through fiber with a passive input and an active PM dual clad output fiber.
This provides 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.
Available in a standard (2+1)x1 configuration, the combiner can be fabricated from a range of industry standard fibers for ease of splicing to commercially available laser diodes, signal and gain fibers
Custom variants using non-standard fibers are available on request.
Please contact the sales team for further information.
Key Features
• 1.5 µm & 1.0 µm PM signal fibers available
• All fiber construction
• High power design
• High coupling efficiency
• PM axis maintained
• Custom configurations available
Applications
• Cladding pumped fiber lasers
• Cladding pumped fiber amplifiers
• Telecoms
• Medical
• Industrial
• Defense
Optical Specifications1
Parameter
Specification
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 – 1090 nm (1064 nm)
Pump (MM) transmission efficiency2
≥ 80% (typ. >90%)
Signal transmission efficiency3
≥ 90% (typ. >95%)
Signal PER (polarisation extinction ratio)3
≥17 dB (typ. >20 dB)
Return loss
≥40 dB
Operating temperature
0 – +65°C
Storage temperature
-40 – +85°C
1 All specifications are for operation at room temperature.
2 MM Transmission efficiencies based on typical system mode fill conditions and 0.5 m pigtails. Measurements performed outside of active fiber absorption band, typically reported at 1120 nm.
3 Signal (feed-through) transmission efficiency and PER measured outside of active fiber absorption band, typically reported at 1310 nm.
Order code
Order codes are comprised of a standard device prefix (e.g. TFB) followed by code letters or numbers which correspond to available options.
Sample: TFB-P50212X71 (2+1x1 TFB, PM 1550nm signal feedthrough, 2 pump 105/125 µm 0.22 NA fiber inputs, 1550 nm core active DCF output, high power housing, 1 m pigtails).
1 Signal wavelengths of 1064 nm or 1550 nm assume using passive single-clad input fiber equivalent to customer specified active DCF.
2 Active DCF specified by customer
3 Maximum housing lengths shown.
4 The 3 mm cylindrical package is recommended for pump powers up to 10 W per port. The high power L1 housing is suitable for pump powers up to 50 W per port. Adequate heat-sinking is required for high power operation. For more information please contact the G&H sales team.
5 Minimum pigtail lengths.
商品属性 [波长] 1064,1550 nm,900 - 1000