SIDE-COUPLED MULTIMODE POWER COMBINER WITH PM SIGNAL FEED-THROUGH FOR 2 µM OPERATION
Fused Fiber TFB
Gooch & Housego’s side-coupled TFB series power combiners has been expanded to include the 2 µm operating window.
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.
Available in a standard (1+1)x1 and (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 options cover large mode area (LMA), large diameter (LDF) and Active signal feed-through fibers and are available on request.
Please contact the sales team for further information.
Key Features
• 1.9 µm – 2.1 µm signal feed-through available
• All fiber construction
• High power design
• High coupling efficiency
• Custom configurations available
Applications
• Cladding pumped fiber lasers
• Cladding pumped fiber amplifiers
• Telecoms
• IR Imaging
• Biomedical
• Industrial
• Defense
• IR Counter measures
Optical Specifications1
Parameter
Specification
Pump input fiber NA
0.15 or 0.22
Pump input wavelength
750 – 850 nm
Signal input wavelength
1900 – 2100 nm
Pump (MM) transmission efficiency2
≥90% (typ. >95%)
Signal transmission efficiency3
≥93% (typ. >97%)
Signal PER (polarization extinction ratio)
≥17 dB
Return loss
≥40 dB
Operating temperature
-5 – +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 790 nm as standard.
3 Signal (feed-through) transmission efficiency reported at center wavelength
Typical Optical Performance
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-PY5212A71 (2+1x1 PM tapered fiber bundle, 1950 nm signal, two 105/125 µm 0.22 NA pump inputs, 10/130 µm 0.15/0.45 NA signal feed-through in level 1 high power, 1 m pigtails).
1 Single-mode feed-through DCF, other DCF including LMA available on request.
2 Other fiber types available, please contact the sales team for further information. Fibers are passive.
3 Maximum housing lengths. Note- Adequate heat-sinking is required for high power operation. High power multimode combiner applications note (PEC 0134) on website or consult sales dept.
4 Minimum pigtail lengths.
商品属性 [波长] 2000 nm,750 - 850