SHSLabShack-Hartmann wavefront sensors

The SHSLab wavefront sensors
Optocraft’s SHSLab wavefront sensor system is a powerful and comprehensive measurement
solution for a multitude of optical applications. It pairs the SHSCam wavefront sensor head withSHSWorks wavefront analysis software and delivers high speed, single-shot measurements withexcellent accuracy.

Alignment of optical systems
Wavefront guiding facilitates and speeds up youralignment process significantly.
Laser beam measurement
The single shot wavefront measurement allows
for fast determination of laserbeam parameters,
control of adaptive optics and thermal lensmeasurement.
Optics testing
The precise measurement of the transmitted
wavefront provides information on the Zernike
wave aberrations and the corresponding PSF/MTF.

Why SHSLab?
¬ High speed, single-shot measurements¬ Excellent unreferenced accuracy¬ Extreme dynamics and broad spectral range¬ High intrinsic stability and reliability¬ Powerful, customizable evaluation software¬ Versatile and flexible usage¬ Optocrafts systems are in operation in
many demanding customer applications

SHSLab = SHSWorks + SHSCamSHSCam familyVarious wavefront sensor models with broad range of applications

SHSCam AR2
Measurement of fine laser beams

SHSCam SHR4SHSCam HR2

High lateral resolution for measurementof highly dynamic wavefronts

All-round wavefront sensor
with high sensitivity
Further SHSCam models available.

The range of SHSCam wavefront sensors¬ Detection area: 4.8mm² to 36mm²¬ Lateral resolution: 24x32 spots to 160x240 spots¬ Evaluation rate up to 50 Hz (1000Hz on small ROI,SDK based software)¬ Wavelength range from DUV to SWIR

AR-S/AR2HR2
SHR4
UHR2

193nm1700nm

XHR

SHSLab detection area

SHSLab wavelength range“We apply OPTOCRAFT-wavefront sensors to evaluate our laser crystals. The results of thewavefront measurement help to satisfy the increasing demands, since excellent solutions
can only be found if a detailed understanding of the system under investigation is achieved.
During our work we receive professional support from OPTOCRAFT and thanks to a very
helpful initial training we are able to obtain reliable data in shortest time.”
Team Laser Development, ROFIN-SINAR Laser GmbHSHSWorks - advanced wavefront
metrology software
Powerful and comprehensive wavefront analysis software package

Complete Zernike analysis
PSF/MTF calculation
Laser beam parameter calculation
Quick-setup using predefined
configurations
Variable software configuration
Pass/Fail analysis
Advanced reporting anddata logging
Optional user access restriction
Various camera and bus types
Remote control via TCP/IP

Accessories
Besides the broad range of different wavefront sensor
models, Optocraft offers accessories to facilitate thesetup of your individual measurement system.
¬ Telescopes¬ Light sources¬ Objective lenses¬ Reference spheres

High performance
wavefront measurement
SHSLab - Measurement principle
Wavefront reconstruction from spot field using extended spot assignment algorithms:

Wavefront

Micro lenses

Spot detection

CameraWavefront reconstruction

Advanced wavefront evaluation
Wavefront analysis using Zernike polynomials, calculation of PSF/MTF,
laser beam parameters and refractive data.
12w0

0.8

0.6

0.4zR

0.2

50

Zernike polynomial fit

100x / (lp/mm)

150

PSF / MTF calculation

Single shot measurement of phase and intensity:
Calculation of beam waist radius W0, Rayleighrange ZR, beam waist position Z0 and M².

SHSLab performance - examples

Extreme tilt dynamic:

Extreme curvature dynamic:

Excellent accuracy of unreferenced sensor:

Over 1000 waves PV of tilt / defocus;
ie ± 15° tilt

Over 100 waves PV of aberrations;
ie ± 10mm local WF curvature

6nm rms measurement accuracy,
no reference usedWhy Optocraft?
Optocraft has been developing and manufacturing Shack-Hartmann
wavefront sensors since 2001. With decades of experience in opticalmetrology and design, we constantly push the limits of this technology. Our systems can be found all over the world and cover even themost demanding applications. Our customers enjoy our dedicatedand reliable support.
We love to be challenged - try us!

Contact us!
Tel. +49 9131 69 15 00
sales@optocraft.com

Know your quality.
Optical metrology made by Optocraft

OPTOCRAFT GmbH · Am Weichselgarten 7 · D-91058 Erlangen