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foXXus

Multifocus optics target materials processing
Multifocus optics target
materials processing

Table of Contents

foXXus_0.07-0.22_NA0.38

foXXus_0.07-0.22_NA0.38

Objectives of patent-pending design
to generate multiple foci

Applications:
 

- Glass Cutting

- Cutting of Sapphire

Technical Specifications

Description
Objective lens with multiple foci
ΔF, μm air
2 foci:    72, 220      4 foci: 74-72-74
Glass (x1.5)
2 foci:  110, 338      4 foci: 114-110-114
Al2O3 (x1.76)
2 foci:  128, 394      4 foci: 133-128-133
Beam full diameter, mm
12.9
Numerical aperture (NA)
0.38
Focal length (F), mm
17.0
Working Distance, mm
9.8
Spectral band, nm
_1064: 1020 - 1100
_532:   510 - 550
_355:   340 - 370
other wavelengths on request
2ω, μm
waist in air
1064 nm
2.5
532 nm
1.3
355 nm
0.9
Angular field
± 1°
Recommended maximum pulse energy
25 mJ at 5 ns
Mounting
C-Mount (1” -32 UN 2A)
Diameter, mm
39
Length, mm
39.8

foXXus_0.07-0.22_NA0.38 - Leaflet foXXus_0.07-0.22_NA0.38

 

Objectives to generate multiple foci

Courtesy of Evana Technologies www.evanatech.com

 

Comments:

  • ΔF in material is  n   times larger than in air, where n  is refractive index of the material:
    • n  ≈ 1.76 for sapphire,
    • n  ≈ 1.5 for glass,
  • the foXXus objectives create 1, 2 or 4 foci along the optical axis,
  • compensation of spherical aberration induced by focusing inside bulk material,
  • the crack inside material is typically longer than ΔF defined by optical design,
  • Denomination:
                 Objectives to generate multiple foci

Objectives to generate multiple foci

 

 

Objectives to generate multiple foci

 

foXXus_0.015-0.047_NA0.8

foXXus_0.015-0.047_NA0.8

Objectives of patent-pending design
to generate multiple foci

Applications:
 

- Glass Cutting

- Cutting of Sapphire

Technical Specifications

Description
Objective lens with multiple foci
ΔF, μm air
2 foci:  15, 47      4 foci: 16-15-16
Glass (x1.5)
2 foci:  24, 17      4 foci: 24-24-24
Al2O3 (x1.76)
2 foci:  28, 86      4 foci: 29-28-29
Beam full diameter, mm
12.9
Numerical aperture (NA)
0.8
Focal length (F), mm
8.1
Working Distance, mm
1.0
Spectral band, nm
_1064: 1020 - 1100
_532:   510 - 550
other wavelengths on request
2ω, μm
waist in air
1064 nm
1.1
532 nm
0.6
Angular field
± 1°
Recommended maximum pulse energy
25 mJ at 5 ns
Mounting
C-Mount (1” -32 UN 2A)
Diameter, mm
39
Length, mm
<44.5

foXXus_0.015-0.047_NA0.8 - Leaflet foXXus_0.015-0.047_NA0.8

 

Objectives to generate multiple foci

Courtesy of Evana Technologies www.evanatech.com

 

Comments:

  • ΔF in material is  n   times larger than in air, where n  is refractive index of the material:
    • n  ≈ 1.76 for sapphire,
    • n  ≈ 1.5 for glass,
  • the foXXus objectives create 1, 2 or 4 foci along the optical axis,
  • compensation of spherical aberration induced by focusing inside bulk material,
  • the crack inside material is typically longer than ΔF defined by optical design,
  • Denomination:
                 Objectives to generate multiple foci

 

Objectives to generate multiple foci

 

foXXus_0-0.21_q

foXXus_0-0.21_q

quasi-afocal systems to generate multiple foci
in zone of focal plane of an F-theta lens

Applications:
 

- Glass Cutting

- Cutting of Sapphire, other transparent brittle materials

- Micromachining where multi-layer processing is preferable

Technical Specifications

Description
Afocal system to provide 1, 2, 4, 7 foci near focus of F-Θ lenses
Focal length of F-Θ lenses (examples)
f’ = 100 mm
f’ = 160 mm
ΔF, μm
(7 foci layout)
air
0-38-29-38-38-29-38    (0-210)
0-97-73-97-97-73-97        (0-534)
Glass (x1.5)
0-57-43-57-57-43-57    (0-314)
0-147-109-147-147-109-147    (0-806)
Al2O3 (x1.8)
0-68-51-68-68-51-68    (0-374)
0-175-132-175-175-132-175    (0-964)
Clear Aperture, mm
20
Numerical aperture (NA)
0.1
0.063
Spectral band, nm
  _1064:
_532:
_355:
1020 - 1100
510 - 550
340 - 370    other wavelengths on request
2ω, μm
waist in air
1064 nm
9.2
14.7
532 nm
4.6
7.4
355 nm
3.1
5.0
Angular field
± 3°
Working Distance
focal plane of F-Θ lens
Recommended maximum pulse energy
25 mJ at 5 ns
Mounting
C-Mount (1” -32 UN 2A), at entrance and exit
Diameter, mm
54
Length, mm
61

foXXus_0-0.21_q - Leaflet foXXus_0-0.21_q

Comments:

  • ΔF in material is  n   times larger than in air, where n  is refractive index of the material:
    • n  ≈ 1.78 for sapphire,
    • n  ≈ 1.5 for glass,
  • the foXXus systems create 1, 2, 4 or 7 along the optical axis in focus zone of a focusing lens,
  • changing ΔF through rotation of adjustment rings,
  • the crack inside material is typically longer than ΔF defined by optical design,
  • Denomination:
                 Objectives to generate multiple foci

 

Objectives to generate multiple foci

 

Objectives to generate multiple foci

foXXus multi-kW

foXXus multi-kW

Objectives of patent-pending design
to generate multiple foci for multi-kW lasers

Applications:
 

- Cutting
- Welding

Features:
 

- High transmission
- Lossless multi-focal energy distribution
- Variable distance between foci
- CA 48 mm
- TEM00 and multimode lasers
- Multi kW lasers
- Reduced thermal focus shift
- Operation: Focusing Lens or Collimator

Objectives to generate multiple foci


Technical Specifications

Common for foXXus objectives for multi-kW lasers
Description
- Objective with multiple foci
- Applied as a Focusing Lens or as a Collimator
Clear Aperture
48 mm
Angular field of view
± 1°
Recommended maximum power
6 kW
Mounting
- Threads M58x1 at entrance and exit
- Adaptor with QB fiber connector mount
Water cooling
through 6-1/8 fittings
Diameter
90 mm
Length
75 mm
Features of foXXus optics
Model Spectral band, nm ΔF in air, mm Focal length, mm Working Distance, mm
foXXus_3.5‐11.1_F200_NIR 920 - 1100
2 foci:  3.5  or  11.1
4 foci:  3.8 - 3.5 - 3.8
~202 (197-208.5)
158.5 - 169.6
foXXus_3.5‐11.1_F200_1064 1020 - 1100
foXXus_5.4‐17.4_F250_1064 1020 - 1100
2 foci:  5.4  or  17.4
4 foci:  5.7 - 5.4 - 6.3
~252 (243.5-261.6)
205.1 - 222.5

foXXus 3.5-11.1_F200 - Leaflet foXXus multi-kW

 

Objectives to generate multiple foci

 

Objectives to generate multiple foci

 

Objectives to generate multiple foci

 

Comments:

  • the foXXus objectives create 2 or 4 foci along the optical axis,
  • Denomination:
                 Objectives to generate multiple foci

 

 

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