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Laser beam shaping has never been so easy!

Laser beam shaping has never been so easy!

Laser beam shaping has never been so easy!
 

Laser beam shaping has never been so easy!

 
Laser beam shaping has never been so easy!
Laser beam shaping has never been so easy! Laser beam shaping has never been so easy! Laser beam shaping has never been so easy!
 

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Dr. Alexander Laskin provides an overview of AdlOptica 
				and discusses the company's beam shaping optics products.

Focal-piShaper in Photovoltaics


Finalist of 2010 Prism Awards for Photonics Innovation

Table of Contents

Focal-πShaper 9_xxx Series

Laser beam shaping has never been so easy!
Focal-πShaper 9_xxx Series High efficient laser beam shaping systems for focused beams
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:
 

- "Flattop"
- "Reverse Gauss"
- "Donut"
- "Trident".

An appropriate optical design provides simple adjustment procedure and lets it easy to integrate the Focal-πShaper in your applications:
  - Photovoltaics
- Marking and Engraving
- Drilling
- Scribing
- Dicing
- Material micromachining
- Printing
- Microwelding
Laser beam shaping systems for focused beams.

Technical Specifications:

Common for all  Focal-πShaper 9_xxx  models:
Type Telescope of Galilean type ( without internal focus)
Input beam - TEM00, Collimated or low divergence
- Diameter <16 mm
- Optimum 2ω diameter for a Gaussian beam 4...6 mm (1/e2)
Output beam - Collimated or low divergence
- Profile is optimized for Intensity distribution manipulation in focal plane of a diffraction limited lens
- Diameter <16 mm
Spot shape - Round
- Square, Focal-πShaper 9_xxx_q versions
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
- Optimized to work with scanning optics: mirror scanners, F-Θ lenses
Mounting External Thread M 27x1
Weight 200 g

Features

Model   Optimum
  spectrum,  nm
  Dimensions
  Diameter / Length, mm
  Applications based on   Max. fluence
  @5ns, mJ/cm2
Focal-πShaper 9_1064_HP
1020 - 1100
39 / 104
Nd:YAG, Fiber, near IR-lasers
200
Focal-πShaper 9_1940
1800 - 2050
41 / 110
near IR-lasers
100
Focal-πShaper 9_1550
1450 - 1650
near IR-lasers
Focal-πShaper 9_1064
1020 - 1100
Nd:YAG, Fiber, near IR-lasers
Focal-πShaper 9_TiS
750 - 850
Ti:Sapphire laser, near IR lasers
Focal-πShaper 9_532
520 - 550
2nd (532) Harmonics of Nd:YAG
Focal-πShaper 9_355
330 - 380
3rd (355) Harmonics of Nd:YAG
Focal-πShaper 9_266
250 - 280
4th (266) Harmonics of Nd:YAG
* - working wavelength range without taking into consideration on the coatings
** - according to coatings applied
F-piShaper_9_xxx_leaflet (Beam shaping) - Focal-πShaper_9_xxx_leaflet  


Basic principles of Focal-πShaper (or F-πShaper) operation:

  • Focal-πShaper is a telescopic optical systems that transforms Gaussian or similar Intensity distribution of TEM00 laser beam to a beam providing manipulation of intensity profile in area of Focus of the focusing lens;
  • Focal-πShaper can be easily (by turning one ring only!) adapted to beams of various diameters, for the Focal-πShaper_9_xxx optimum 2ω diameter range is 4-4.5 mm (1/e²);
  • Low sensitivity to misaligments and beam size variation;
  • The transformation is provided for a certain wavelength range;
  • Optical design without internal focusing of a beam;
  • Any focusing lens could be applied; the only condition is the lens to be diffraction limited one;
  • There are no limitation on applying scanning mirror heads.

 

Laser beam shaping systems for focused beams.

Enlarge
Movie picture
Drawings:

Laser beam shaping systems for focused beams.

Enlarge

Examples of the Focal-πShaper operation
Intensity profiles of focused beams under various Focal-πShaper settings (Courtesy of Altechna)
Examples of intensity profiles of focused beams
Input beam diameter 6 mm
Input beam diameter 4.2 mm
   
Scribing by TEM00 femtosecond Laser (Courtesy of Altechna)
Focusing by an ordinary lens, without Beam Shaping
Focal-piShaper installed in front of a focusing lens, with Beam Shaping
Focusing by an ordinary lens, without Beam Shaping
Focal-πShaper installed in front of a focusing lens
Heating by Fiber Laser (Courtesy of CARS, University of Chicago)
 

 

Comparison of heating of tungsten foil by:

 - a TEM01 beam focused by a lens (left column),

 - a TEM00 beam focused by a lens with a Focal-πShaper installed ahead, (right columns).

Power is stepwise increased in top-down direction.

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 TEM00 beam focused by a lens with a Focal-piShaper installed ahead (with Beam Shaping)
Laser beam shaping has never been so easy! Laser beam shaping has never been so easy! Laser beam shaping has never been so easy!

Focal_square

Laser beam shaping has never been so easy!
Focal-πShaper 9_xxx_q - high efficient beam shaper  SQUARE  shaped focused spots
With these unique tools it becomes possible to create focused spots with FLATTOP profile and SQUARE shape.
With nearly 100% efficiency the Focal-πShaper produces various profiles:
 

- "Flattop"
- "Inverse Gauss"
- "Donut"

An appropriate optical design provides simple adjustment procedure and lets it easy to integrate the Focal-πShaper in your applications:
  - Photovoltaics
- Marking and Engraving
- Drilling
- Selective Laser Melting
- Scribing
- Dicing
- Material micromachining
- Printing
- Microwelding
Laser beam shaping systems for focused beams.

Technical Specifications:

Common for all  Focal-πShaper 9_xxx  models:
Type Telescope of Galilean type ( without internal focus)
Input beam - TEM00, Collimated or low divergence
- Diameter <16 mm
- Optimum 2w diameter for a Gaussian beam 4...8 mm (1/e2)
Output beam - Collimated or low divergence
- Profile is optimized for Intensity distribution manipulation in focal plane of a diffraction limited lens
- Diameter <16 mm
Other features - Easy integration to an optical setup and adaptation to a laser source
- Compact design suitable for scientific and industrial applications
- A diffraction limited focusing lens of any type can be applied with the Focal-πShaper
- Easy tolerances for alignment as well as positioning of the Focal-πShaper with respect to a focusing lens
- Capability to work with scanning mirrors
Overall dimensions - Diameter 41 mm
- Length 110 mm
Mounting External Thread M 27x1
Weight 200 g

Features

Model
Operating wavelength range,  nm
Applications based on
Focal-πShaper 9_1064
1020 - 1100
Nd:YAG, Fiber and other near IR-lasers
Focal-πShaper 9_532
520 - 550
2nd (532) Harmonics of Nd:YAG laser
Focal-πShaper 9_355
330 - 380
3rd (355) Harmonics of Nd:YAG laser
* - working wavelength range without taking into consideration on the coatings
** - according to coatings applied
F-piShaper_9_xxx_leaflet (Beam shaping) - Focal-πShaper_9_xxx_leaflet  


Basic principles of Focal-πShaper (or F-πShaper) operation:

  • Focal-πShaper is a telescopic optical systems that transforms Gaussian or similar Intensity distribution of TEMoo laser beam to a beam providing manipulation of intensity profile in area of Focus of the focusing lens;
  • Focal-πShaper can be easily (by turning one ring only!) adapted to beams of various diameters, for the Focal-πShaper_9_xxx optimum 2w diameter range is 4-4.5 mm (1/e2);
  • Low sensitivity to misaligments and beam size variation;
  • The transformation is provided for a certain wavelength range;
  • Optical design without internal focusing of a beam;
  • Any focusing lens could be applied; the only condition is the lens to be diffraction limited one;
  • There are no limitation on applying scanning mirror heads.
 
Drawings:

Laser beam shaping systems for focused beams.

Enlarge

Examples of the Focal-πShaper operation
Scribing by TEM00 femtosecond Laser (Courtesy of Altechna)
Focusing by an ordinary lens, without Beam Shaping
Focal-piShaper installed in front of a focusing lens, with Beam Shaping
Focusing by an ordinary lens, without Beam Shaping
Focal-πShaper installed in front of a focusing lens
Laser beam shaping has never been so easy! Laser beam shaping has never been so easy! Laser beam shaping has never been so easy!

Focal_na5080

Laser beam shaping has never been so easy!

Focal-πShaper NA 0.1_50_80_1064

Highly efficient Collimator - Beam Shaper converting Gaussian to Flattop 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:

  • "Flattop"
  • "Inverse Gauss"
  • "Donut"

Applications:

  • Microwelding
  • Drilling
  • Selective Laser Melting
  • Material micromachining
  • Laser Heating in Geophysical researches
  • Marking and Engraving
  • Scribing
  • Cutting
Laser beam shaping systems for UV and NIR.
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

Weight 650 g
Mounting Input (fiber side):  inner thread M 30x0.75, 5-axis QBH mount
Output:               outer thread M 30x0.75
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

 Focal-piShaper NA 0.1_50_80_1064_leaflet (Beam Shaping) - Focal-πShaper NA 0.1_50_80_1064_leaflet

 

Beam Shaping never was so easy!

 

Beam Shaping never was so easy! Examples of profiles

 

Laser beam shaping has never been so easy! Laser beam shaping has never been so easy! Laser beam shaping has never been so easy!

Focal_co2

Laser beam shaping has never been so easy!

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:

  • Flattop
  • "Reverse Gauss"
  • "Donut"
  • "Trident", etc.

An appropriate optical design provides simple adjustment procedure and lets it easy to integrate the Focal-πShaper in your applications:

  • Marking and Engraving
  • Drilling
  • Scribing
  • Dicing
  • Printing
  • Welding
piShaper Series of high efficient laser beam shaping systems for CO2 lasers

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
Weight 400 g
Mounting External Thread M 27x1
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
  pishaper_for_co2_leaflet (Beam Shaping) - Focal-πShaper 12_CO2_leaflet  

Scribing by TEM00 femtosecond Laser (Courtesy of Altechna)
Focusing by an ordinary lens, without Beam Shaping
Focal-piShaper installed in front of a focusing lens, with Beam Shaping
Focusing by an ordinary lens, without Beam Shaping
Focal-πShaper installed in front of a focusing lens
Laser beam shaping has never been so easy! Laser beam shaping has never been so easy! Laser beam shaping has never been so easy!
   

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Laser beam shaping has never been so easy!