Focal-πShaper 9_HP
Series of high efficient beam shapers for focused laser beams
transforming Gaussian to Flat-top or Doughnut spots
for high power ps and fs lasers: UV, visible, near- and mid-IR
With these unique tools the flexible manipulating the intensity distribution of focused spots becomes a reality.
With nearly 100% efficiency and without side-lobes Focal-πShaper produces the optimal in microprocessing focused spots:
With nearly 100% efficiency and without side-lobes Focal-πShaper produces the optimal in microprocessing focused spots:
- "Flat-top"
- "inverse Gauss"
- "Doughnut"
- 3D Printing (Selective Laser Melting)
- Micromachining
- Drilling
- Scribing
- Cutting
- Microwelding
- Solar Cell processing techniques
- Laser heating in Geophysics research
Specifications
| Common for all Focal-πShaper 9_HP models | |||
| Type | Telescope of Galilean type, without internal focus | ||
| Input beam |
- TEM00, collimated or low divergent / convergent, full divergence angle in range ±5 mrad - Full diameter < 16 mm - Optimum 2ω diameter for a Gaussian beam 5...6 mm (1/e²) |
||
| Output beam |
- Collimated or low divergence / convergent - Optimized for manipulating the spot intensity distribution in zone of focus of a diffraction limited lens - Full diameter < 16 mm |
||
| Focused Spot |
- Round shape - Variable profiles: Flat-top, "inverse Gauss", "Doughnut" with the same beam shaper |
||
| Transmission | - > 97% in working spectral band | ||
| Other features |
- Easy integration in equipment - Compact design suitable for scientific and industrial applications - Operation with diffraction limited focusing lenses of any type - Easy alignment - Flexible distance to a lens in range 20…500 mm, other distances to be discussed with a supplier - Optimized to operate with scanning optics: mirror and polygon scanners, F-Θ lenses |
||
| Overall dimensions |
- Diameter 44 mm (39 mm for _1064_HP) - Length 93 mm (104 mm for _1064_HP) |
||
| Mounting | Outer M27x1 thread, at entrance | ||
| Weight | < 220 g | ||
| Features | |||
| Model | Optimum spectrum, nm | Design wavelength, nm | Applications based on |
| _1940_HP | 1850 - 2050 | 1940 | mid-IR |
| _1550_HP | 1450 - 1650 | 1550 | near-IR |
| _1064_HP | 1020 - 1100 | 1064 | Nd:YAG, Fiber, other near-IR |
| _TiS_HP | 750 - 850 | 800 | Ti:Sapphire, near-IR |
| _532_HP | 510 - 550 | 532 | 2nd Harmonics Nd:YAG, similar lasers |
| _355_HP | 340 - 370 | 355 | 3rd Harmonics Nd:YAG, similar lasers |
| _266_HP | 255 - 275 | 266 | 4th Harmonics Nd:YAG, similar lasers |
Basic principles of Focal-πShaper operation:
- Focal-πShaper is a telescopic optical systems that transforms Gaussian or similar Intensity distribution of TEM00 laser beam to the beam with Airy disk distribution providing by focusing Flat-top, "inverse-Gauss", "Doughnut" and some other profiles of the focused spot;
- Flexible manipulation of profiles with the same device;
- No sidelobes when optimum input beam size;
- Optimum 2ω diameter for the Gaussian beam 4...6 mm (1/e²);
- Low sensitivity to misalignments and beam size variation;
- Relatively wide spectral band;
- Optical design without internal focusing;
- Any diffraction limited focusing lens could be applied;
- Optimized to operate with scanning optics: mirror and polygon scanners, F-Θ lenses.
Examples of the Focal-πShaper operation
Scribing (Courtesy of ALPhANOV)
Laser Heating in DAC, Geophysics (Courtesy of CARS, University of Chicago)
Comparison of heating of tungsten foil by:
Brightness of a dot corresponds to temperature.
One can see variation of effective beam diameter in case of non-shaped TEM01 beam (by the way with a TEM00 beam the diameter variation would be greater) and almost constant beam diameter with only variation of temperature (brightness) in case of TEM00 beam with a Focal-πShaper.
- a TEM01 beam focused by a lens (left column),
- a TEM00 beam focused by a lens with a Focal-πShaper installed ahead, (right columns).
Brightness of a dot corresponds to temperature.
One can see variation of effective beam diameter in case of non-shaped TEM01 beam (by the way with a TEM00 beam the diameter variation would be greater) and almost constant beam diameter with only variation of temperature (brightness) in case of TEM00 beam with a Focal-πShaper.
Focal-πShaper NA 0.1_50_80_1064
Highly efficient Collimator - Beam Shaper converting Gaussian to Flat-top profile for high power TEM00 fiber lasers
With these unique tools the long-standing wish to manipulate the shape of focused beams becomes a reality.
With nearly 100% efficiency Focal-πShaper produces various profiles:
With nearly 100% efficiency Focal-πShaper produces various profiles:
- "Flat-top"
- "Inverse Gauss"
- "Donut"
- Microwelding
- Drilling
- Selective Laser Melting
- Material micromachining
- Laser Heating in Geophysical researches
- Marking and Engraving
- Scribing
- Cutting
Technical Specifications
| Type | Collimator, without internal focus | |
| Input beam |
- TEM00, M² < 1.4 - Divergent |
|
| Output beam |
- Collimated or low divergent - Profile optimized to manipulate intensity distribution near focus of a diffraction limited focusing lens - Diameter < 20 mm |
|
| Spectral range | 1020 - 1100 nm | |
| Laser Power | up to 2 kW (CW) | |
| Other features |
- Water cooling - Adapted to operate with fiber lasers - QBH connector compatible - Compact design suitable for industrial applications - Operation with diffraction limited focusing lenses of any type - Easy alignment - Optimized to work with scanning optics: mirror scanners, F-Θ lenses |
|
| Overall dimensions |
- Diameter 77 mm - Length 130 mm |
|
| Mounting |
Input (fiber side): inner thread M 30x0.75, 5-axis QBH mount Output: outer thread M 30x0.75 |
|
| Weight | 650 g | |
| Focal-πShaper features | ||
| Model | Focal-πShaper NA0.1 50_80_1064 | Focal-πShaper NA0.06 50_80_1064 |
| Input divergence 2Θ (1/e²), rad |
0.2 - 0.24 | 0.1 - 0.12 |
Examples of profiles
Focal-πShaper 12_CO2
Series of high efficient Beam Shapers to manipulate the intensity profile of focused TEM00 beams CO2 Lasers
With these unique tools the long-standing wish to manipulate the shape of focused beams becomes a reality.
With nearly 100% efficiency the Focal-πShaper
produces various profiles:
- "Flat-top"
- "Reverse Gauss"
- "Donut"
- "Trident", etc.
- Marking and Engraving
- Drilling
- Scribing
- Dicing
- Printing
- Welding
Technical Specifications
| Type | Telescope of Galilean type (without internal focus) | |
| Input beam |
- TEM00, Collimated or low divergent with full divergence angle ±5 mrad - Diameter < 24 mm - Optimum 2ω diameter for a Gaussian beam 8...12 mm (1/e²) |
|
| Output beam |
- Collimated or low divergence - Profile is optimized for flat-top, doughnut spot in focal plane of a diffraction limited lens - Diameter < 24 mm |
|
| Other features |
- Easy integration in equipment - Compact design suitable for scientific and industrial applications - Operation with diffraction limited focusing lens of any type - Easy alignment - Optimized to work with scanning optics: mirror scanners, F-Θ lenses |
|
| Overall dimensions |
- Diameter 48 mm - Length < 139 mm |
|
| Mounting | External Thread M 27x1 | |
| Weight | 400 g | |
| Focal-πShaper 12_CO2 features | ||
| Model | Focal-πShaper 12_CO2_10.6 | Focal-πShaper 12_CO2_9.4 |
| Optimum spectral range | 10.5 - 10.7 μm | 9.3 - 9.5 μm |
Scribing by TEM00 femtosecond Laser (Courtesy of Altechna)
Focusing by an ordinary lens, without Beam Shaping
Focal-πShaper installed in front of a focusing lens
Technical Specifications
| Common for all Focal-πShaper Q models | |
| Description |
Beam shaper, lossless transforming Gaussian beam to the beam with Airy disk profile to get Flat-top or Donut focused spots with minimized side-lobes |
| Input beam |
- TEM00, typically M²<1.5 - Divergence within ±20 mrad range |
| Transmission | > 99% in working spectral range |
| Alignment | X / Y lateral translation, ±2 mm range |
| Focal-πShaper Q models features | ||||||
| Model | Øin(1/e²), mm |
Spectrum, nm |
Pmax, W |
CA, mm |
Dimensions D / L, mm |
Mounting threads |
| Focal-πShaper_NIR | ||||||
| _Q‑3 | 2.5 - 4 | 1500 - 2100 | 100 | 20 | 42 / 29 | M30x0.75 outer/inner |
| _Q‑4 | 3 - 5 | |||||
| _Q‑5 | 4 - 6 | 200 | ||||
| _Q‑7.5 | 6 - 9 | |||||
| _Q‑10 | 8 - 12 | |||||
| Focal-πShaper_1064 | ||||||
| _Q‑3 | 2.5 - 4 | 1020 - 1100 | 100 | 20 | 42 / 29 | M30x0.75 outer/inner |
| _Q‑4 | 3 - 5 | 100 | ||||
| _Q‑5 | 4 - 6 | 200 | ||||
| _Q‑7.5 | 6 - 9 | 200 | ||||
| _Q‑10 | 8 - 12 | 200 | ||||
| _Q‑14 | 11 - 17 | 300 | ||||
| _Q‑17 | 15 - 20 | 400 | 38 | 64 / 21 | M58x1 outer/inner Adapter M30x0.75 |
|
| _Q‑20 | 18 - 23 | 400 | ||||
| Focal-πShaper_1070 | ||||||
| _Q‑5_HP | 4 - 6 | 1020 - 1100 | 1500 | 20 | 42 / 29 | M30x0.75 outer/inner |
| _Q‑7.5_HP | 6 - 9 | 2000 | ||||
| _Q‑10_HP | 8 - 12 | 3000 | ||||
| _Q‑17_HP | 15 - 20 | 4000 | 38 | 64 / 21 | M58x1 outer/inner Adapter M30x0.75 |
|
| _Q‑20_HP | 18 - 23 | 5000 | ||||
| Focal-πShaper_TiS | ||||||
| _Q‑3 | 2.5 - 4 | 750 - 900 | 100 | 20 | 42 / 29 | M30x0.75 outer/inner |
| _Q‑4 | 3 - 5 | 100 | ||||
| _Q‑5 | 4 - 6 | 200 | ||||
| _Q‑7.5 | 6 - 9 | 200 | ||||
| _Q‑10 | 8 - 12 | 200 | ||||
| _Q‑14 | 11 - 17 | 300 | ||||
| Focal-πShaper_NUV | ||||||
| _Q‑3 | 2.5 - 4 | 335 - 560 | 100 | 20 | 42 / 29 | M30x0.75 outer/inner |
| _Q‑4 | 3 - 5 | |||||
| _Q‑5 | 4 - 6 | 200 | ||||
| _Q‑7.5 | 6 - 9 | |||||
| _Q‑10 | 8 - 12 | |||||
| Focal-πShaper_266 | ||||||
| _Q‑3 | 2.5 - 4 | 250 - 275 | 100 | 20 | 42 / 29 | M30x0.75 outer/inner |
| _Q‑4 | 3 - 5 | |||||
| _Q‑5 | 4 - 6 | 200 | ||||
| _Q‑7.5 | 6 - 9 | |||||
| _Q‑10 | 8 - 12 | |||||
| Focal-πShaper_CO2 | ||||||
| _Q‑5 | 4 - 6 | 9000 - 11000 | 200 | 20 | 42 / 29 | M30x0.75 outer/inner |
| _Q‑7.5 | 6 - 9 | |||||
| _Q‑10 | 8 - 12 | |||||
Example of layout for Laser Powder Bed Fusion (L-PBF) with TEM00 fiber laser
