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1780 Instantly measure M 2

1780 Instantly measure M 2
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3.7.1.2 1780 Instantly measure M2 The ModeScan Model 1780 is a laser beam profiling instrument that measures the M² Beam Propagation Ratio and all associated ISO 11146 parameters instantaneously in real time at video rates to over 20Hz. The measurement technique, patented by Photon Inc., uses 10 reflective surfaces to form simultaneous images of the propagating beam at 10 locations on a Model 2512 CCD array camera. With all ten measurement positions acquired at once, the instrument is suitable for measurement of both CW and pulsed lasers down to single-shot rates. Beam diameters are obtained with NIST-traceable accuracy to better than 2% using the BeamPro. This translates to M² measurements with accuracy to ~5%. The FireWire system operates under Photon’s BeamPro in Microsoft Windows. The compactness of the system and the IEEE 1394a FireWire interface offers enhanced ease-of-use and portability. The ability to operate in any orientation allows for easy placement on any optical bench and saves valuable bench space. The CCD is sensitive from ~250nm to 1100nm wavelengths. The standard configuration is supplied with a glass OD 2.8 C-mount neutral density filter for wavelengths >360nm, and an OD 3.0 Fused Silica Inconel neutral density filter for wavelengths <360nm. Because of the limited usefulness of exposure control with pulsed lasers, the Photon Inc. Model ATP is recommended for use with pulsed lasers with repetition rate <~10kHz and wavelength >360nm. For pulsed lasers with wavelength <360nm, a variable UV filter or a combination of UV filters will generally be required. 3.7.1.2.1 ModeScan Model 1780 System Specifications Optical/Sensor/Detector Sensor Wavelength Pixel Array Pixel Size Array Dimension Scanning Mode CCD Cover Glass Beam Splitters Test Lenses UV: ~250 – 460nm Visible: 425 – 720nm VIS – NIR: 620 – 1080n Fixed Attenuator: Visible – NIR UV Computer/Electrical A / D Conversion Maximum Frame Rate Exposure range Gain Trigger External Trigger Specifications Trigger Connector Trigger Cable Interface IEEE 1394 cable Supply Voltage Supply Power Mechanical Filter/Lens Mount Mounting Dimensions in mm Weight Environmental Operating Temperature Humidity Conformity Si CCD 1/2" Format ~360nm – ~1100nm (Standard with OD 2.8 filter) ~250nm – ~1100nm with UV optics 780 (H) × 580 (V) 8.3µm × 8.3µm 6.49mm × 4.83mm Progressive Removed Fused Silica: <20/10 Scratch Dig, l/10 Flatness 200mm fl Fused Silica/250 – 460nm AR coated standard 200mm fl BK7/425 – 720nm AR coated standard 200mm fl BK7/620 – 1080nm AR coated standard OD 2.8 Absorbing Glass >360nm OD 3.0 Fused Silica Inconel 250 – 450nm 12 Bit 35.8fps (full frame @ full resolution) 20µs–27.64ms (Software selectable via 1394 bus) 0–12dB (Software selectable via 1394 bus) Internal or External (Software selectable) 5V ±1V @ 10mA ±5mA (Positive transition) 10 pin RJ-45 Jack 10 pin RJ-45 to BNC 1.8m IEEE 1394a (FireWire) 1.8m +8V – +36V DC (+12V DC nominal), <1% ripple (supplied via IEEE 1394 cable); requires external powered hub with laptop PCs 3.5W max @ 12V DC (typical) C-mount (1" – 32 tpi) Gimbal Mount on ½" post; 12mm Metric post optional 62 H × 140 W × 210 L , + Gimbal Mount ~1.4kg O° – +50°C (+32° – 112F) 20% – 80%, relative, non-condensing CE; FCC; RoHS and WEEE

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Arrangement of Measurement Windows: Video Window Beam Propagation Mode; Beam Statistics Window; Horizontal and Vertical Caustics Window. ModeScan 1780 M2 System with Fire Wire BeamPro MS-1780 ModeScan Model 1780, dedicated M2 measurement system, with 12-bit FireWire (IEEE 1394a) CCD PH00096 detector for single-shot, pulsed and CW lasers. System includes: ModeScan with gimbaled mount for alignment; FireWire CCD camera; Photon FireWire BeamPro Acguisition and Analysis Software stand- alone GUI with M2 Analysis; Active X automation interface; 200mm lens coated for Visible range (400- 700nm);...

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