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High Performance Optics For Industrial Fiber Lasers
fiber optics Ophir optical coatings for 1 micron high power lasers
The recent evolution of the industrial metal processing market introduced us with fiber laser technology, offering high energy laser beam transmitted through numerous optical components.
Subsequently, the optical components are required to meet the highest standards of optical coating.

With decades of knowledge and experience in the optical industry, using cutting-edge measurement equipment, we offer a wide array of first-class optical coatings for high power lasers in the 1 micron wavelength range.
fiber optics

Capabilities

  • High LIDT (laser induced damage threshold) coatings 10J/ cm2
  • Low absorption 10-50ppm
  • High quality fused silica substrates
  • Extensively tested and utilized in laser applications above 8kW
Typical coating features
AOI 0º-15º
%R @1030-1090 < 0.1%, 0.2% per surface
%T @650-670 > 60%-95% (2 sides)
%T@1030nm T > 99.6%
%T@1064nm T > 99.7%
%T@1070-1080nm T > 99.6%
S/D 10-5
Mechanical properties
Elastic (Young's) modulus 73GPa
Poisson's ratio 0.16
Density 2.20g/cm³
Knoop hardness (100g load) 522kg/mm²
Thermal properties
Specific heat 0.770 J/(gK)
Thermal conductivity 1.38W/(mK)
Thermal diffusivity 0.0075 cm²/s
Thermal expansion(ppm/c) 0˚C to 200˚C 0.57x10-6
Refractive index and dispersion
Thermal coefficient ∆n/∆T[ppm/C] 9.6
Wavelength 1064nm
 
fiber optics Ophir Fiberlens™ collimating and focusing lenses
Aspherical surfaces on collimating and focusing lenses provide improved performance over conventional, spherical surfaces in high-power industrial fiber laser and direct diode laser systems. The aspherical optics' shape reduces spherical aberration resulting in a smaller spot size, a uniformed spot shape and greater depth of focus.
Specification Value / Range Tolerance
Diameter (range) 12.0 – 300.0 mm + 0 / - 0.10 mm
Effective focal length (EFL) 20.0 – 500.0 mm < 0.1%
Lens types Aspherical – plano
Aspherical – spherical
Aspherical – aspherical
 
Clear aperture > 90% of diameter  
Asphere power < 2.0 fringe at 632.8 nm Radius of curvature  
Asphere irregularity < 0.5 fringe at 632.8 nm (P-V)  
Scratch - dig 20-10 or better  
Surface roughness < 2 nm RMS  
Substrate material High-purity, UV-grade fused silica  
Focal length ≤0.1%  
ETV ≤10μm  

Lenses for high power fiber lasers

Ophir P/N Diameter (Inch/ mm) F.L. (inch/ mm) E.T. (mm) Optics Type
631931-117 1.18/ 30.0 4.92/ 125.00 5.8 Focusing doublet 125mm FL
631932-117 1.18/ 30.0 4.92/ 125.00 3.08
631933-117 1.18/ 30.0 3.94/ 100.00 5.48 Collimating doublet 100mm FL
631934-117 1.18/ 30.0 3.94/ 100.00 2.93
633771-117 1.18/ 30.0 5.91/ 150.00 3.9 Focusing doublet 150mm FL
633772-117 1.18/ 30.0 5.91/ 150.00 5.42
633910-117 1.46/ 37.0 5.91/ 150.00 4.7 Focusing doublet 150mm FL
633911-117 1.46/ 37.0 5.91/ 150.00 2.7
634132-117 1.46/ 37.0 3.94/ 100.00 5 Collimating doublet 100mm FL
634133-117 1.46/ 37.0 3.94/ 100.00 2.1
632284-117 1.50/ 38.1 7.50/ 190.50 7 Single lens
631669-117 1.50/ 38.1 5.00/ 127.00 7 Single lens
632291-117 1.50/ 38.1 7.09/ 180.00 3 Single lens
632292-117 1.50/ 38.1 8.66/ 220.0 3.3 Single lens
632294-117 2.00/ 50.8 5.91/ 150.00 11.6 Single lens
633112-117 2.00/ 50.8 7.50/ 190.00 11.45 Single lens
632331-117 1.18/ 30.0 7.87/ 200.00 2.45 Single lens
632754-117 1.00/ 25.4 8.00/ ~200.00 6 Single lens
633842-117 1.00/ 25.4 4.43/ 112.5 2.4 Single lens
633214-117 1.00/ 25.4 3.94/ 100.00 2 Single lens
631521-117 1.38/ 35.0 5.91/ 150.00 9 Single lens
633841-117 1.00/ 25.4 8.86/ 229.00 3.2 Single lens
633415-117 1.50/ 38.1 8.27/ 210.00 6.38 Single lens
633120-117 1.97/ 50.0 8.66/ 220.00 2.8 Single lens
633230-117 1.57/ 40.0 5.91/ 150.00 5 Single lens

Protective windows for high power fiber lasers

fiber optics
Ophir P/N Diameter (Inch/ mm) E.T. (mm)
633267-117 0.85/ 21.5 2
632252-117 0.88/ 22.4 4
632445-117 1/ 25.4 3
633723-117 1/ 25.4 5
633481-117 1/ 25.4 4
632830-117 1.18/ 30.0 5
632240-117 1.18/ 30.0 1.5
632755-117 1.26/ 32.0 6.35
632595-117 1.31/ 33.3 1.5
632251-117 1.34/ 34.0 5
633824-117 1.38/ 35.0 1.5
632851-117 1.42/ 36.0 5
633411-117 1.46/ 37.0 7
632958-117 1.5/ 38.1 5
633347-117 1.5/ 38.1 1.5
632933-117 1.65/ 42.0 8
632498-117 1.97/ 50.0 2
632346-117 2/ 50.8 6.35
632713-117 2.17/ 55.0 1.5
633824-117 1.38/ 35.0 1.5