Laser Mirror, Output Coupler, 1550nm

Manufacturer's part number :


Manufacturer Altechna


Description :

Laser Output Coupler at 1550nm (OC) is a partially reflecting dielectric mirror used in a laser cavity. It has a function to transmit a part of intracavity optical power in order to get a lasing. Output couplers listed below can be found in stable resonators, as they have a spatially constant reflection/transmission (R/T) value, which is the main property of such kind of mirror. Such cavity's parameters as pump power threshold, maximum output power and laser efficiency highly depends on R/T ratio of output coupler. Thus choosing a right output mirror for a cavity design is quite a crucial moment. For user's convenience Altechna maintains commonly used output couplers for high intensity intracavity use. Rear surface is antireflective coated in order to minimize Fresnel reflections. Concave mirrors help to maintain TEM00 spatial mode within the resonator while wedged mirror deflect Fresnel reflection that could be amplified within resonator and form secondary (parasitic) pulse.

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  • Quote and availability


  • Material: BK7
  • Wavelength: 1550nm
  • Reflectivity: 70 ± 2% , 80 ± 2% , 90 ± 1% , 95 ± 1% , 97 ± 1%
  • Angle of incidence (AOI): 0° to 5°
  • Dimensions: Ø25.4 x 6 mm
  • Diameter tolerance: +0.0/-0.1 mm
  • Thickness tolerance: ±0.1 mm
  • Clear Aperture: >90%
  • Surface quality: 20-10 S/D
  • Surface Flatness: <λ/8 @ 632.8 nm
  • Laser Damage Threshold: >10J/cm² for 10 ns pulses @ 1064 nm
  • Benefits

  • Suitable for use in high intensity intracavities
  • Rear surface AR coated
  • Curves mirrors with various values of ROC are available
Features Similar products
Type Mirrors  

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Spectral Range NIR (700nm-3µm)  
Type of coatings Dielectrics