MULTIMODE POWER COMBINER WITH PM SIGNAL FEEDTHROUGH
PM 6+1x1 TFB
The Gooch & Housego tapered fiber bundle(TFB) series power combiners provide a high efficiency means of combining light from several multimode sources into one fiber.
G&H proprietary manufacturing techniques allow the precise fusion of input fibers around a central PM (polarization maintaining) signal feedthrough fiber and a PM dual clad output fiber providing high coupling efficiency over a wide pump wavelength range.
Available in a standard 6+1x1 configuration, the combiner can be fabricated from a range of industry standard fibers for ease of splicing to commercially available laser diodes and fiber applications.
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
0.22
Pump input wavelength
900 to 1000 nm
Signal input wavelength
1550 or 1064 nm
Pump (MM) transmission efficiency2
≥90% (Typ >95%)
≥90%
Signal transmission efficiency3
≥80% (Typ >85%)
Signal PER (polarization extinction ratio)
>20 dB
Return loss/directivity
>40 dB
Operating temperature
0 – +75°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; specification typical for center wavelength ±15 nm (minimum).
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- P50611B30 (PM 6+1x1 tapered fiber bundle, 1550 nm signal feedthrough, six 105/125 µm 0.15 NA pump inputs, 1550 nm core DCF output, regular housing, 0.5 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 feedthrough fibers 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. Note- Adequate heat-sinking is required for high power operation. High power multimode combiner application notes (PEC 0134) on website or consult sales office.
4 Minimum pigtail lengths.
商品属性 [波长] 1064,1550 nm,900 - 1000