SP920G Beam Profiling Camera

GigE CCD High Resolution Camera with BeamGage

Description:

The SP920G camera accurately captures and analyzes wavelengths from 190nm - 1100nm. It features a compact design, wide dynamic range, unparalleled signal to noise ratio, and GigE interface that makes it ideal for measuring CW and pulsed laser profiles.

1624 x 1224 pixel resolution with a4.4µm pixel pitch
14 fps at full resolution
BeamGage Standard or Professional software included

Specification

Datasheet

Wavelengths190-1100nm
Beam Sizes44μm – 5.3mm
InterfaceGigE
Sensor TypeSilicon CCD
Compatible Light SourcesCW, Pulsed
Active Area5.3mm x 7.1mm

Elements1624 x 1224
Effective Pixel Pitch4.4μm
Dynamic Range61dB
Frame Rate at Full Resolution14 fps
ComplianceCE, UKCA, China RoHS

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Ordering

BGS-GIGE-SP920G

P/N SP90519

BeamGage Standard software, software license, 1/1.8” format 1624 x 1224 pixel camera with 17.5mm Cmount CCD recess. Comes with 15ft GigE cable, power supply with external trigger adapter, and 3 ND filters.
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BGP-GIGE-SP920G

P/N SP90520

BeamGage Professional software, software license, 1/1.8” format 1624 x 1224 pixel camera with 17.5mm C-mount CCD recess. Comes with 15ft GigE cable, power supply with external trigger adapter, and 3 ND filters.
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BGS TO BGP UPGRADE

P/N SP90233

Upgrade BeamGage Standard Edition to Professional Edition. Requires a new camera key to activate.
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BeamGage Training DVD

P/N SP90429

How to become a great user of the world’s most powerful laser beam analysis software https://youtu.be/w9JkKIXcF5s
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Documentions

BeamGage Standard
BeamGage Standard is our full-function software with an extensive set of ISO quantitative measurement, our patented UtraCal™ algorithm for the highest accuracy measurements in the industry.
BeamGage Professional
BeamGage Professional has all of the functionality that BeamGage Standard includes. BeamGage Professional supports all of our beam profiling cameras, includes window partitioning to allow analysis of multiple beams on a single camera, and includes an automation interface written in .NET to push data to your custom applications.

Drawings

FAQ

What is the distance from the front of the camera to the sensor?

This C-mount Standard camera has a sensor depth from the front of the camera to the sensor of 17.5mm.

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What is the saturation level of the SP920G/SP920 camera?

The saturation intensity for the SP920G/SP920 is .97µW/cm2
Follow this link and input your laser parameters and you can calculate the your power density.

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At what wavelengths is the SP920G/SP920 most responsive?

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What is the framerate of the SP920G

14 Frames/second

The effective frame rates listed in BeamGage specification sheets are the maximum rates typically achievable in actual use. Frame buffering, image processing techniques, graphical displays, and mathematical computation all add degrees of overhead to achieving higher frame rates. This can be further limited by the available PC hardware. BeamGage features two modes, Frame Priority and Results Priority, which change how the system balances the work. Results Priority acquires a frame, performs any enabled image processing, performs all calculations and updates the graphical displays before accepting another frame from the camera. This mode is most useful when a temporal sequence of frames is not necessary and should always be enabled when logging. Frame Priority mode will allow the calculations and graphical display updates to be interrupted if another frame is ready from the camera before those operations are complete. This can be useful when collecting all frames at the maximum camera frame rate is necessary.

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Videos

Video Series: BeamGage Tutorials Video Series: BeamGage Tutorials

Fundamentals of Laser Measurement & Beam Profiling Fundamentals of Laser Measurement & Beam Profiling

Is your laser's beam profile shaped correctly for your application?
This video teaches the fundamentals of laser beam profiles and discusses the benefits of profiling your laser beam.
Several case studies are presented showing before and after laser beam profiles.

Measuring Laser Focus Spot Size in an industrial Medical Device Application Measuring Laser Focus Spot Size in an industrial Medical Device Application

This step-by-step tutorial will show you how to set up a camera-based beam profiling system on an industrial single-pulse laser welding system.
It will also demonstrate for you how to simultaneously analyze the laser's focused spot, measure the laser's energy per pulse, and measure its temporal pulse shape.

How to Design Your Perfect Laser Beam with BeamMaker How to Design Your Perfect Laser Beam with BeamMaker

BeamMaker helps engineers, technicians, and researchers understand a beam's modal content by subtracting theoretically generated modes from real beam measurement data. Derive a perfect beam profile by specifying the mode, size, width, height, intensity, angle, and noise content - then comparing it to theoretically derived measurements. The end result is knowledge about how much the real beam varies from the desired beam.

Watch the BeamGage Tutuorials, including tips on handling your CCD camera, software install, introduction to the BeamGage user interface, the context-sensitive help system and user manual, customizing your reporting environment, and configuring BeamGage to display specific laser measurements.

More videos are available on our video page

Support

Tutorials and Articles

White Paper – Apples to Apples: Which Camera Technologies Work Best for Beam Profiling Applications, Part 1

In 1997, Dr. Carlos Roundy, founder and president of Spiricon Inc., presented a paper at the 4th International Workshop on Lasers and Optics Characterization in Munich Germany. This paper was based on work that was carried out at Spiricon in the mid 90’s. At the time new insights were being presented on how to characterize a laser beam. Previous definitions were somewhat simplistic and most often were driven by customers telling us how they wanted the beam measured. Read more...

Ensuring Quality Welds in Medical Devices

Many customers involved with laser welding measure the pulse energy output of their lasers, but is this all the data required needed to ensure quality welds? Steve Schellenberg at Spinal Modulation had his doubts. While he found pulse energy measurement using his Ophir equipment useful in qualifying his laser welding process, two of his laser welding stations were producing different quality welds despite producing identical laser pulse energies. One laser welder seemed to be doing an OK job, while the other welder produced significantly lower quality welds. Steve suspected differing laser Read more...

Why is Test Equipment Always Suspect?

When a laser malfunctions and diagnostics begin, why is test equipment the first to be questioned for its accuracy when it was the laser that failed first ? Read more...

White Paper – ISO compliance of non-contact, real-time beam analysis

1. IntroductionDuring the past decade laser power levels used in production applications has risen significantly. Today, welding systems are commonly using laser power in the range of multiple kilowatts. To deliver continuously high product quality, the key parameters of the laser beam must be measured on a regular basis. Ophir has tackled the task and developed a non-contact measurement technology based on the Rayleigh scattering. The technology used in the BeamWatch laser beam profilers enables the measurement of high-power beams without ever touching the laser beam. As the technology is Read more...

Imaging UV light with CCD Cameras

Is it possible to image a UV laser with a Silicon Sensor CCD camera offered by Ophir-Spiricon? The answer is yes, but the direct UV light ablates Silicon CCD chips over time. The ablation is cumulative and depends on the intensity, the wavelength, and the duration of the light on the sensor. The best choice for imaging UV light without damage is to avoid directly imaging the beam on the CCD sensor by using an UV image converter... Read more...

Understanding Dynamic Range…The Numbers Game

There is a fair amount of confusion caused by the reporting of dynamic range of beam profilers. The purpose of this applications note is to explain some of the terminology used in the discussion of this parameter by both Ophir- Spiricon and other suppliers of beam profilers. DefinitionDynamic Range is the ratio of the largest measurable signal to the smallest measurable signal. The smallest measurable signal is typically defined as that equal to the noise level, or alternatively the “Noise Equivalent Exposure” or that point where the Signal-to-noise ratio (SNR) is 1. To Read more...

The Focal Length Divergence Measurement Method

The Focal Length Divergence measurement method is based upon the beam width of a focused beam’s spot size and the focal length of the focusing optic. The Focal Length Divergence method provides a means for finding the far-field beam divergence at any point in the beam propagation path. As shown below, the calculation performed by the BeamGage® software is quite simple; however the optical setup must be done with great care. Read more...

Laser Beam Measurement Vocabulary

Wavelength: In physics, the wavelength of a sinusoidal wave is the spatial period of the wave— the distance over which the wave's shape repeats,[1] and the inverse of the spatial frequency. It is usually determined by considering the distance between consecutive corresponding points of the same phase, such as crests, troughs, or zero crossings and is a characteristic of both traveling waves and standing waves, as well as other spatial wave patterns.[2][3] Wavelength is commonly designated by the Greek letter lambda (λ)... Read more...

White Paper – Beam Width Measurement Accuracy

Introduction Read more...

White Paper – Apples to Apples: Which Camera Technologies Work Best for Beam Profiling Applications, Part 2: Baseline Methods and Mode Effects

By G.E. Slobodzian, Director of Engineering, Retired, Ophir-Spiricon Read more...

BeamGage Profiling with .Net Automation Interface and LabVIEW®

BeamGage Professional and BeamGage Enterprise version 5.7 are supported with Automation via .Net components. Both include a LabVIEW example that can be run with the LabVIEW Run-Time Engine that is provided with the BeamGage software CD or available for free download from National Instruments. Read more...

Accessories

Customers that purchase the above items also consider the following items:

Optical Camera Trigger

The Optical Camera Trigger is an optical sensor that detects pulsed light sources and generates outputs to trigger a camera. The front aperture of the Optical Trigger must be directed at a light source that provides the necessary properties for trigger activation. (e.g. a laser flash lamp, a pick-off source from the main laser beam, or similar).
C-Mount Neutral Density (ND) Filters

The individual filters come in three versions, the ND1 filter in the
LBS-300s Attenuator

The LBS-300s beam splitter attachment for C-mount, CS-mount, or Ophir mount cameras allow you to measure laser beams with diameters up to 15mm and powers ranging from 10mW to ~400W(1). The beam sampler is designed so that the preferential polarization selection effect of a single wedge is cancelled out and the resulting beam image is polarization
CCTV Lens

When direct imaging in front of the camera, like imaging an image projected onto a defusing surface, like a ground glass plate, it is necessary to reduce the image so that it completely fits onto the CCD chip surface. The 25mm and 50mm CCTV lenses image an object from a given plane in front of the lens onto the CCD while reducing the size.
Camera Near Field Profiler

Near field profiling can also be used with camera profilers to analyze small beams, and involves a microscope objective lens to image the beam onto a camera detector array. This technique expands the measurement range of the camera to include smaller beams, which could not be ordinarily measured due to the pixel size of the detector array. Near
4X Beam Reducer

The 4X Beam Reducer is an imaging system that images the plane 30cm in front of the reducer onto the camera CCD sensor while reducing the size 4 times and inverting it. The beam reducer uses the 3 screw on attenuators provided with the camera. Since the intensity of a beam after reduction will be increased by 4x4=16 times.
4X UV Image Reducing Converter

The UV image converters are fluorescent plates that convert UV radiation that is poorly imaged by silicon cameras into visible light that is then imaged onto the CCD of the camera. These fluorescent plates are specially designed for UV conversion and have a high light output, wide linear dynamic range and high damage threshold.
4X Beam Expander

Beam expanders are designed to work with C-mount threaded cameras that have 4.5mm imager back focal spacing or with CS (12.5mm) back focal spacing. The 4X beam expander is an expanding telescope that images the beam as it looks at 8mm from the end of the expander onto the CCD while enlarging the image 4X.
Microscope Objectives

Microscope objectives are available for expanding the beam even more. There are objectives for 6X, 12X, and 22X expansion. The various expanders allow the use of our 2% and 10% filters as well as the variable attenuator so as to accommodate the camera to a wide range of source intensities.
Stackable Prism Front-Surface Beam Samplers

The Prism Front-Surface Beam Sampler (PFSA) is a C-mount fixture housing a UV-Grade Fused Silica right angle prism, used for sampling the front surface reflection for high power/energy beam-profiling applications. Reflection at nominal incidence of 45°is polarization and wavelength dependent, with 532nm s-polarization reflected at 8.27%, and p
Stackable Beam Splitters

The stackable beam splitters are designed for maximum modularity and shortest beam path. They are compatible with almost all of our cameras having the standard C mount thread and can mount either to other attenuators or to the camera itself.
Beam Tap I & II

Laser beam attenuation while reducing polarization with broadband and YAG wavelength beam sampling.