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

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

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