Regular 10um fibers can hardly been coupled efficiently when they are used to align with silicon waveguild. Therefore, fibers with small mode field diameter (MFD) come into use. It can be fusion spliced to SMF28 fiber, working as a connecting bridge between regular 10um fiber and silicon chip. MEISU\'s MFD optical fiber array can be UHNA fiber spliced to regular sized SM fiber or PM fiber array, keeping the splicing point as close as 7mm to the fiber array facet. 
  
 
  MFD Matched Fiber Array Features 
  Fiber count: 2, 4, 8, 12 
  Pitch Tolerance:<0.5μm 
  Insertion Loss:<0.5dB 
  Return Loss: >55dB 
  Fiber Type: SM / PM 
  Fiber MFD: 3.2μm, 3.3μm, 4μm, 5.5μm or other requested 
  End-face polish angle: 0°, 8° or customer specified 
  
 
  MFD Matched Fiber Array Specifications 
  
 
  Diameter φ 400mm 
  LED Type 5mm DIP 
  Color-Wavelength Red 620~630nm, Amber 590~594nm 
  Luminous Intensity ≥16000mcd/led (8pcs leds ) 
  EMC acc. to IEC60598-2-3 
  Solar Panel 
  (Monocrystalline silicon ) Monocrystalline 5.5V/0.8W 
  lithium battery Fe battery 1400mAH/3.2V 
  Working Temperature -10℃ ~ +55℃ 
  Ingress Protection IP55 acc. to EN 60529 
  Material of Lens/Housing UV-stabilized polycarbonate 
  Color of Housing Yellow 
  Product Size 400*385*102mm 
  Continuous Working Period during cloudy and rainy days: 14 days after battery fully charged (only light on at night) 
  
 
  How It Works 
  MFD matched Fiber Array is assembled by fusing two types of fiber with different MFD (Mode Field Diameter) together, to realize optical transmission from ordinary single-mode fiber to small fiber mode field, polarization maintaining optical fiber to ordinary single mode fiber and single mode fiber to multimode optical fiber, etc. 
  
 
  If you want to know more kinds of custom optical assemblies, please contact us.