VIS/NIR Beam Profiler: STCam CCD

Our CCD is developed to provide excellent sensitivity from the VIS to NIR spectral range. Thanks to its high resolution and its small pixel size, the STCam is a high performance tool for laser beam analysis of continuous wave (CW) and pulsed laser modes. Due to its high dynamic range the STCam captures even higher laser modes with outstanding detail.

The passive cooled sensor of the STCam is constructed without cover glass to avoid interference patterns. For sensor protection a low distortion neutral density filter is integrated. The STCam supports the ultra-fast FireWire IEEE 1394b interface with data transfer rates up to 800 Mbit/s. The plug and play

design facilitates easy and flexible integration and operation.

The portable STCam is designed to be used in a variety of applications in industry, science, research and development, including:

l         Laser beam analysis of CW and pulsed lasers,

l         Quick control of laser modes and adjustment errors,

l         Test equipment for scientific research,

l         Near-Field and Far-Field analyses of lasers, LED devices and other light sources.

The enhancement of product quality, process reliability and efficiency are just a few of the many benefits of our unique beam profiler cameras. The STCam includes the specifically designed analysis software, STRayCi, which supports Windows XP/Vista operating systems. Its sophisticated software architecture opens up new opportunities in laser beam analysis according to ISO standards.

The concept of the STCam enables easy adaption to standard optical imaging systems, attenuators and opto-mechanical components ensuring highest flexibility. This includes:

l         Microscope lens and beam expander,

l         UV-Converter and IR-Converter,

l         Fixed and variable attenuators, etc.

ACCESSORIES

Neutral Density Filter: To expand the power range of the STCam several absorptive and metallic-coated neutral density filters are available, which are specified by optical densities ranging from OD 1.0 to OD 4.0.

FireWire Component: We offer different FireWire PCI / PCI Express cards for installation direct into the PC. Standard FireWire cables are suitable for industrial applications and are available in various lengths.

Trigger Device: To synchronize the STCam with pulsed laser systems, our trigger device is perfectly suited. This frequency and delay generator is software controllable and enables the synchronization of up to four beam profilers with different delay times simultaneously.

* without condensation

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Neutral Density Filter

Our neutral density filters allow broadband attenuation for a spectral range from VIS to NIR. Due to their excellent surface quality the absorptive and reflective filters enable precise beam attenuation for low power applications. The level of attenuation is specified by the optical density. Filters with different optical densities can be combined. A filter adapter is available to mount the filters on the STCam aperture.

CO2 Laser Beam Profiler

The high performance STCL system is based on industry’s unique imaging technique. It is designed for monitoring high-power CO2 lasers in best performance. Thanks to its high resolution and its incomparable real-time capabilities, this highly efficient beam profiler is optimized for laser beam analysis of continuous wave (CW) and pulsed laser systems. The STCL system ensures beam profiling:

l         By high frame rates and high resolution,

l         Without optical components in the beam path,

l         Without scanning techniques, fluorescent materials or toxic fumes through acrylic mode burns.

The STCL supports the ultra-fast FireWire IEEE 1394a/b interface with data transfer rates up to 800 Mbit/s. The plug and play design facilitates easy and flexible integration and operation.

The compact and portable STCL is designed to be used in a variety of applications in industry, science, research and development, including:

l         Laser beam analysis of CW and pulsed lasers,

l         Quick control of laser modes and adjustment errors,

l         Test equipment for scientific research,

l         Near-Field and Far-Field analyses of lasers.

The enhancement of product quality, process reliability and efficiency are just a few of the many benefits of our unique beam profiling system.

The STCL system includes the specifically designed analysis software, STRayCi, which supports Windows XP/Vista operating systems. Its sophisticated software architecture opens up new opportunities in laser beam analysis according to ISO standards.

ACCESSORIES:

Attenuation Units: The water-cooled attenuation units are based on zinc selenide (ZnSe) and are designed for a 10° / 45° angle of incidence. Due to its excellent performance the unit can be used up to laser powers of 3kW and intensities of 5kW/cm2.

FireWire Components: We offer different FireWire PCI/PCI Express cards for installation direct into the PC. Standard FireWire cables are suitable for industrial applications and are available in various lengths.

Trigger Device: To synchronize the STCL system with pulsed laser systems, our trigger device is perfectly suited. This frequency and delay generator is software controllable and enables the synchronization of up to four beam profilers with different delay times simultaneously. 

Technical Specifications:

* different parameters on request

** without condensation

Laser Beam Profiling Software STRayCi

Our sophisticated beam profilers are available with the specifically designed analysis software, STRayCi, which supports Windows XP/Vista operating systems. It is available as 32 Bit / 64 Bit version and can control up to eight beam profiler cameras on a single computer.

Due to its clearly designed menu structure, STRayCi shows self-explanatory functions, which help the user to access quickly standard settings. Incomparable visualization modes, extensive analytical capabilities as well as new developed correction algorithms ensure the highest accuracy in laser beam analysis.

A wide range of beam width techniques e.g. 2nd Moment, Knife Edge, Moving Slit, Plateau, Gauss-Fit can be applied to determine quick and reliable standard beam parameters. The unique measurement tool enables the continuous monitoring of beam parameters, beam position and power density distribution. Helpful features like AOI Tracking, AOI Optimization, Zoom Functions, Look-Up Tables, etc.

simplify the laser beam analysis.

The extraordinary graphical and analytical tool of STRayCi can be used for live data (LiveMode) and stored data (SaveMode) simultaneously, while each mode has its own individual functions. This makes STRayCi the most advanced analysis software on the market.

STRayCi is equipped with flexible data and image output capabilities. This permits the user to store data and images in the format that is compatible with their needs.

A clearly arranged and printable protocol view displays the chosen measurement parameters as well as the most important laser beam analysis results.

STRayCi is compatible with guidelines of the international standard organization for laser beam measurements:

l         ISO 11145: Vocabularies and symbols

l         ISO 11146: Beam width, propagation ratio,…

l         ISO 11670: Beam positional stability,…

l         ISO 13694: Beam power density distribution,…

STRayCi works only with a USB software protection lock. It is a hardware based security solutions to protect and encrypt the software against piracy.

MINIMUM SYSTEM REQUIREMENTS:

l         Windows XP / Vista

l         Pentium IV / AMD Processor

l         128 MB graphic card, Open GL V1.4 compatible

l         100 MB free memory

l         PCI / PCIe slot for FireWire card

l         USB port for dongle connection

l         CD / DVD-ROM drive for software installation

l         Internet access for update request

STRayCi Special Features

REAL-TIME BEAM PROFILING

2D / 3D intensity plots / Cross sections / Histogram

Pointing stability (x-y fluctuation, COG- position analysis, ect.)

Parameter stability (intensity, power, center x-y, beam size)

Parameter results (beam statistics, beam width, beam parameter)

CAMERA CONTROL

Multiple camera support

Different measure types

User-selectable exposure time and gain factor, auto-exposure time

Floating average and variable brightness

ANALYSIS FUNCTIONS

Beam statistics (power, max intensity, COG, etc.)

Beam width (2nd Moment, Gauss / Super-Gauss-Fits, Plateau, Knife Edge, Moving Slit, ect.)

Beam parameter (beam width, ellipticity, uniformity, etc.)

CALIBRATION AND CORRECTION TOOL

Background subtraction, auto-background

Pixel correction technology (offset correction, linearity, etc.)

Power calibration

OTHER FEATURES

User-defined Area of Interest (AOI)

AOI tracking and optimization

Color palettes incl. auto-contrast function

Zoom functions

2D profile arithmetic operations, filters, transformations, etc.

E-mail support

FLEXIBLE OUTPUT

Data: txt, tiff

Image: jpeg, png, bmp, gif, tiff

Protocol: pdf

  STBQM-10 Beam Profile Analysis

The STBQM10 laser beam profiler is a high precision, CCD based beam profiler for use with lasers with wavelengths between 190 and 1100 nm. Allied with our powerful but intuitive software package, the BQM10 makes quick and accurate characterization of your lasers a reality.

The high quality 12-bit CCD array gives excellent resolution. Features include USB2.0 interface means portability and ease of use, RJ45 GPI/O connector for control of synchronization of lighting and 32MB onboard memory for frame buffering. Thus, the STBQM10 can be easily transferred to different laptop or desktop computers. The user interface is simple and intuitive but with many useful features.

Specifications:

• Parameters of ISO 11146 series of standards

• ½” format CCD 1392x1040 array with 4.65um square pixels

• 12-bit digitization – 60dB dynamic range

• No frame grabber required (32MB RAM on-board memory)

• USB2.0 direct connection with no external power supply required

• Compact (45x45x56mm) and lightweight (130grams)

• 15 fps at 1392x1040, 30 fps at 640x480

• Measures both CW and pulsed beams

• Second-moment and Gaussian fit

• ~3% beam diameter accuracy

The STBQM10 laser beam profiler comes with the following

·   Optical head

·   User software on CD

·   Cables

·   User manual

Options -

Wavelength range - 350nm to 1100nm

Accessories -

STBQM - 100      Variable attenuator

STBQM - 110      Set of 6 ND filters, screw mount

STBQM - 120      Beam pick off

STBQM-30 Beam Quality Monitor (M²)

The STBQM-30 is designed to allow single shot measurement of laser beam propagation characteristics. The real-time measurement capability and easy set-up make it an ideal tool for monitoring changes in beam parameters of CW and pulsed lasers.

The STBQM-30 utilizes the patented distorted diffraction grating known as IMPTM (Image MultiPlex) grating developed by QinetiQ plc in the UK, to acquire intensity data from nine image planes along the axis of the beam simultaneously. This enables beam propagation parameters to be calculated from a single frame of data from the 12-bit CCD array giving a true one-shot measurement capability. The camera operates at 0.15 mW per sq cm for CW operation, 1.0 mJ per sq cm for pulsed operation.  Would need the filters if power/energy density is higher.

Product highlights:

· Parameters of ISO 11146 series of standards

· Real time measurement

· Easy to set up - speeds up analysis

· USB2.0 direct connection with no external power supply required

· Small form factor (45mm H x 45mm W x 170mm L)

· Second-moment and Gaussian fit

· 5% M2 accuracy

Typical applications:

· Laser, LD, LED and VCSEL monitoring

· Measuring pulsed lasers

· Laser beam process control e.g. during warm-up

The STBQM30 range of laser beam quality monitor comes with the following

·  Optical head

·  User software on CD

·  Cables

·  User manual

STBQM30 gratings are optimised for a particular wavelength so please specify the wavelength you want fitted as standard. The following gratings are available.

G1064        - 1064nm

G532           - 532nm

Others available on request .

Accessories -

STBQM-100: Variable attenuator

STBQM-110: Set of 6 ND filters, screw mount

STBQM-120: Beam pick off

STBP Laser Beam Profiler

The Laser Beam Profiler provides high resolution real-time monitoring and quantitative characterization of spatial beam intensity distributions. Primarily designed for excimer lasers, it may be utilized for all pulsed or CW lasers as well as for incoherent sources, covering an extremely wide spectral range from NIR to soft X-rays. The UV/EUV sensitivity is achieved by a quantum conversion coating on the CCD chip. 

A variety of different sensor types (large/small area, highest spatial resolution, sensitivity and dynamic range) are available and can be adapted to specific applications. The software supports also periphery devices like adaptive mirrors, stepper motors, attenuators, shutters or power monitors. Automated or remote-controlled measurements are facilitated by the help of a powerful macro language.

The applications comprise:

-          Determination of beam parameters according to ISO 11146

-          Diagnosis of pointing stability (ISO 11670)

-          Pulse-to-pulse fluctuations

-          Beam propagation analysis (caustic measurement)

-          Characterization of beam shape (uniformity, steepness) according to ISO 13694 (especially for homogenized beams)

-          On-line laser beam inspection (e.g. recognition of “hot spots”)

-          Optimizing of laser operational parameters

-          Alignment of optical components

Special Features:

-          Wide spectral range: 1064 … 13nm

-          Small and large area CCD sensors

-          USB 2.0 interface (ideal for laptop)

-          High dynamic range (12/14 bit)

Applications:

-          Beam diagnostics (NIR, Vis, UV, EUV)

-          ISO beam parameters

-          Beam propagation/focusability

-          M²  (caustic measurement)

STBC Laser Beam Characterization

Beam Parameters

Quantitative determination of all relevant laser beam parameters from the acquired profiles is achieved with the help of the comprehensive beam characterization software “MrBeam”, which makes use of standard ISO evaluation procedures.

Beam parameters according to ISO standards:

• Beam width 2^nd moment (ISO 11146)

• Divergence, M² (with caustic setup; ISO 11146)

• Pointing stability (ISO 11670)

• Beam shape/uniformity (ISO 13694)

Software:

• Various acquisition modes: ‘grab’, ‘averaging’, ‘floating average’

• Evaluation of beam parameters: beam width (2^nd moment, centroid, ellipticity, uniformity, relative pulse energy, pointing stability etc.

• 2D profile arithmetics (ADD, SUB, MULT, DIV etc.)

• Selection of area-of-interest for analytic beam evaluations

• Real-time display and evaluation of cross-sections, 3D graphics

• Profile-fit (Gaussian, super-Gaussian, top-hat etc.)

• Colour palettes incl. Analytic functions (e.g. ‘intensity threshold’)

• Easy-to-use ‘zoom’-functions

• Comprehensive user-programmable macro language

• Export of all data and profiles

The system includes:

-          Digital camera (USB 2.0 interface for note-book or PC)

-          Beam analysis software

Optional extensions:

-          Translation stage (e.g. for caustic measurement)

-          Hartmann-Shack wavefront sensor

-          Adaptive mirror for closed-loop beam stabilization

Trigger/delay generator