2+1X1 MULTIMODE POWER COMBINER WITH PM SIGNAL FEEDTHROUGH
Fused Tapered Fiber Bundle
Gooch & Housego proprietary manufacturing techniques allow the precise fusion of multimode pump fibers to a PM signal feedthrough fiber and a PM dual clad output fiber.
This provides high coupling efficiency over a wide pump wavelength range.
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 – 1090nm (1064 nm)
Pump (MM) transmission efficiency2
≥ 90% (typ. 95%)
Signal transmission efficiency3
≥ 93% (typ. 97%)
Signal PER (polarization extinction ratio)
≥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. Reported at 975 nm as standard.
3 Signal (feedthrough) transmission efficiency reported at center wavelength.
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-P50212B31 (2+1x1 TFB, PM 1550nm signal feedthrough, 2 pump 105/125 µm 0.22 NA fiber inputs, 1550 nm core DCF output, regular housing, 1 m pigtails).
1 Signal wavelengths of 1064 nm or 1550 nm assume the use of Nufern PM-980-HP and PM-1550-HP (or equivalent) signal input fiber s respectively.
2 Typical mode field diameters are based on ~7.5 µm for 1064 nm and ~10.5 µm for 1550 nm. Fibers are passive.
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 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