Innovative 1-Micron Optics for high power fiber lasers
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High Performance Optics For Industrial Fiber Lasers
fiber optics
Ophir optics for 1μm high power fiber lasers

With decades of knowledge and experience in the optical industry, using cutting-edge measurement equipment, Ophir offers a wide array of first-class optical coatings for high power fiber lasers in the 1μm wavelength range, including:

•Protective windows
•Spheric & aspheric lenses
• Optical collimation and focusing assemblies (doublets and singlets)

High power lasers are a growing industry with numerous applications. As technology advances, and lasers become more sophisticated, the optics used in such systems must provide increasingly superior levels of performance. Here's where Ophir steps in. With the 1μm high power laser optics range, Ophir guarantees maximum focus stability and minimum aberrations, by using advanced manufacturing technologies, for high optical performance.

Capabilities

  • High LIDT (laser induced damage threshold) coatings 20J/ 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
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  
 
 
Aspherical 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 shape of the optics reduces spherical aberration resulting in a smaller spot size, a uniform spot shape and greater depth of focus.

Ophir Fiberlens™ aspheric lenses are available in custom configurations for all high-power industrial fiber laser and direct diode laser systems.
fiber optics
 
 
Optical collimation and focusing assemblies
Our line of replacement focusing and collimation assemblies is available off-the-shelf and is compatible with leading OEM laser brands. Standard products offered for 100mm, 125mm, 150mm, 200mm focal length. Design and manufacture, according to customer needs, is available upon request.
Focusing Lens Sub-Assemblies
 
Motorized Zoom Lens for Laser Cutting Head

Typical features:
  • Magnification range X1-X4
  • Continuous zoom
  • Total transmission >97%
  • Focus range -15mm to +20mm
  • Focus time 0.5sec for full range
  • OEM custom designs are available upon request

Download customization request
illustration
Lenses for high power fiber lasers
Ophir P/N Diameter (Inch/ mm) F.L. (inch/ mm) E.T. (mm)
Focusing Doublet
633859-117 1.18/ 30.0 4.92/ 125.00 Assembly #680339-001
633860-117 1.18/ 30.0 4.92/ 125.00
633910-117 1.46/ 37.0 5.91/ 150.00 Assembly #680337-001
633911-117 1.46/ 37.0 5.91/ 150.00
633771-117 1.18/ 30.0 5.91/ 150.00  
633772-117 1.18/ 30.0 5.91/ 150.00  
Collimating Doublet
633861-117 1.18/ 30.0 3.94/ 100.00 Assembly #680340-001
633862-117 1.18/ 30.0 3.94/ 100.00
634132-117 1.46/ 37.0 3.94/ 100.00 Assembly #680355-001
634133-117 1.46/ 37.0 3.94/ 100.00
Single Lens
632284-117 1.50/ 38.1 7.50/ 190.50 7.00
631669-117 1.50/ 38.1 5.00/ 127.00 7.00
632291-117 1.50/ 38.1 7.09/ 180.00 3.00
632292-117 1.50/ 38.1 8.66/ 220.0 3.30
632294-117 2.00/ 50.8 5.91/ 150.00 11.60
633112-117 2.00/ 50.8 7.50/ 190.00 11.45
632331-117 1.18/ 30.0 7.87/ 200.00 2.45
632754-117 1.00/ 25.4 8.00/ ~200.00 6.00
633842-117 1.00/ 25.4 4.43/ 112.5 2.40
633214-117 1.00/ 25.4 3.94/ 100.00 2.00
631521-117 1.38/ 35.0 5.91/ 150.00 9.00
633841-117 1.00/ 25.4 8.86/ 229.00 3.20
633415-117 1.50/ 38.1 8.27/ 210.00 6.38
633120-117 1.97/ 50.0 8.66/ 220.00 2.80
633230-117 1.57/ 40.0 5.91/ 150.00 5.00
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
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 9
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
*Ophir Optics meets ROSH directive according to China ROHS regulation and ROHS2 directive 2011/65/EU