INGENERIC beamPROP

Precision beam-shaping optics for high-power diode lasers

Efficient beam shaping for asymmetric diode laser beams

The INGENERIC beamPROP is a beam transformation system (BTS) made of high-refractive-index glass, designed to specifically adjust the beam parameter product (BPP) of high-power diode lasers. As a precision-manufactured micro-optic array, the beamPROP transforms highly asymmetric laser bar beams into nearly symmetric beam profiles.

This beam transformation is a key prerequisite for the efficient downstream processing of the laser beam—for instance, in the fiber coupling of diode laser bars, free-space collimation, or dense wavelength beam combining (DWBC). By precisely matching the beam parameters of both axes, the beamPROP enables compact, high-performance, and reproducible optical system architectures.

Optimized beam quality and maximum coupling efficiency

Diode laser bars emit beams with widely differing divergence in the fast and slow axes. This asymmetry significantly limits the efficiency of downstream optics. Acting as a beam transformation system, the beamPROP specifically compensates for these differences, laying the foundation for significantly improved beam quality and coupling efficiency.

Technical Highlights:

Matching of the beam parameter product (BPP)
Targeted adjustment of the fast and slow axes for nearly symmetrical beam profiles.
High coupling efficiency

Optimal conditions for fiber coupling, free-space collimation, and DWBC.
Minimized transition and dead zones
Near-complete utilization of the available optical aperture.
Compact system integration

High-performance beam transformation in a compact footprint.
Minimized aberrations & low residual divergence
High beam quality, even in demanding high-performance applications.
High optical efficiency

AR coatings with high transmission of up to 99% for low losses.
Stable performance during continuous operation
Reproducible results, even in industrial series applications.
High design flexibility

Flexible adaptation to various laser architectures.
Reproducible beam transformation
Consistent optical performance across all emitters.

Overview of our beamPROP components

Choose from our standard products or contact us for a customized solution.

Number of emittersWEmaxPE (mm)NA Slow-axisNA Fast-axisCT (mm)L (mm)H (mm)
Wavelength 400-500 nm
BProp-A-400250.200.40< 0.070.51.46tbd> 0.7
Wavelength 780-1080 nm
BProp-A-200**470.100.20< 0.060.41.4tbd> 0.7
BProp-A-400*250.200.40< 0.070.51.5tbd> 0.7
BProp-A-500*190.200.50< 0.100.61.9tbd> 0.7
Wavelength 1000-1300 nm
BProp-A-500190.200.50< 0.100.61.91tbd> 0.7
Wavelength 1250-1750 nm
BProp-A-500190.20.50< 0.100.61.92tbd> 0.7
Wavelength 1700-1970 nm
BProp-A-500190.20.50< 0.100.61.93tbd> 0.7

NE: Number of emitters
WE max : Maximum width of emitters
PE: Pitch of emitters
NA SA: Numerical aperture of slow-axis
NA FA: Numerical aperture of fast-axis
CT: Center Thickness
L: Length
H: Height (Height Bottom Tab = 0.5 mm)
W: Width
EFL FAC : Effective focal length of FAC
TX: Transmission > 98%

All wavelengths available for all kind of pitches – upon request.

**Test example: 978 nm; 100µm emitter width; FA-divergence = 67° (1/e²); FAC07-300; 90% power enclosure.

**Test example: 940 nm; 100µm emitter width; FA-divergence = 43° (1/e²); FAC06-150; 90% power enclosure.

Our beamPROP modules at a glance

Choose from our standard products or contact us for a customized solution.

Number of emittersWEmaxPE (mm)NA Slow-axisEFL FAC [mm]W (mm)L (mm) ***H (mm)
Wavelength 400-500 nm
BProp-M-300-400250.200.40< 0.070.302.1012.01.20
Wavelength 780-1080 nm
BProp-M-150-200470.100.20< 0.060.152.0012.01.20
BProp-M-300-400250.200.40< 0.070.302.1012.01.20
BProp-M-300-500190.200.50< 0.100.302.5012.01.20
Wavelength 1000-1300 nm
BProp-M-300-500190.200.50< 0.100.302.5012.01.20
Wavelength 1250-1750 nm
BProp-M-300-500190.200.50< 0.100.302.5012.01.20
Wavelength 1700-1970 nm
BProp-M-300-500190.200.50< 0.100.302.5012.01.20

All wavelengths available for all kind of pitches – upon request.

Support, Length and Height can be customized for components upon request:
Standard height of Support: 0.5mm, others possible as custom solution (0.5-1.5mm)

***L=12mm preferred, 6-14mm possible upon request

Diverse options for different laser architectures

INGENERIC beamPROPs (BTS) are available in various versions:

  • beamPROP as a standalone component (Single BTS)
    For compact laser sources and applications where the beam transformation is integrated as a separate optical element.
  • beamPROP arrays for laser bars and multi-emitter systems
    Specifically designed for the beam transformation of high-power laser bars and multi-channel diode laser architectures.
  • Pre-assembled beamPROP modules
    Precisely aligned, ready-to-mount units for simplified integration into industrial laser systems.
  • Combined optical modules consisting of FAC, SAC, and beamPROP
    Compact assemblies that combine fast-axis collimation, slow-axis collimation, and beam transformation in a pre-assembled module.
Precision manufacturing to industrial standards:

Isothermal Precision Glass Molding

Our manufacturing process offers numerous advantages:

The result is micro-optics and lens arrays that offer series-production quality, stability, and excellent reproducibility.

Additional Services:

Customized BTS design
Adjustment of geometry, pitch parameters, and beam characteristics according to the specific laser architecture.
Optimized coatings
Application-specific AR coatings for various wavelengths and power requirements.
Pre-assembled and pre-adjusted modules
The beamPROP is available as an individual component or as a pre-assembled BTS module—for example, in combination with FAC and SAC optics—to reduce integration and assembly effort.
System integration and modularity
Easy integration into existing laser systems, as well as modular concepts for new system designs.
Suitability for automated assembly processes
Designed for industrial series production with high repeatability.
Support from development to serial production
Assistance ranging from optical design and prototyping to serial production.

Quality

Reliable quality for consistent series performance.

We maintain a rigorous quality management system. Both the optics and the modules are characterized during the manufacturing process. By performing measurements within the beam path, we ensure that no deviations occur regarding the modules’ subsequent application.

Combined with our reliable manufacturing technology, this enables us to guarantee beam-shaping arrays with outstanding coupling characteristics.

Frequently Asked Questions – FAQs

Why micro-optics made of high-quality glass?
Compared to other lens types, glass optics offer:

- Exceptional thermal and mechanical stability
- Significantly lower absorption, resulting in longer service life
- Excellent shape fidelity, even at high power levels
- Consistent optical performance throughout the entire operating lifetime
- High surface quality without the need for polishing
- Excellent suitability for high-volume production: precision glass molding delivers identical optics in large quantities at cost-effective production rates
- Molded glass optics are highly resistant to heat and laser power
- Precision molding enables complex optical surfaces with a high degree of accuracy
How is the price for INGENERIC products calculated?
Standard products: We offer standard price lists from 10 pieces up to large quantities.The higher the number of pieces, the cheaper the unit price. Packaging costs are usually included in the product price; the customer bears the delivery costs.

Customer-specific products/custom-made products: For our manufacturing process, precision molding, we need a tool (or several molds/inserts in series production), which incurs one-off initial costs. Product prices are calculated depending on quantity. The higher the number of pieces, the cheaper the unit price. The development costs depend on the complexity and size of the shapes. Smaller shapes can often be realized more cost-effectively, especially in the prototype or sample phase.In the phase up to series production, product prices can often be reduced through scaling. The one-time development costs also cover maintenance and replacement (if necessary).
What advantages does automated assembly offer?
Our automated assembly offers numerous advantages. The use of modern camera systems ensures the highest level of precision and reproducibility. Unlike manual handling, there is no risk of damage caused by assembly tools. Positioning accuracy is in the micrometer range.
Furthermore, assembly and packaging take place in a clean environment. The packaging is designed to be suitable for automated parts removal.

Get in Touch!

INGENERIC – Your Partner for Precision Optical Solutions

Do you have suggestions, specific requirements, or a concrete enquiry? We can help you select the right micro-optics for your application—from standard components to customised solutions. Please feel free to contact us for personal advice or an individual quotation.

We look forward to hearing from you!

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