SGR-Extra Series Laser SGR-Extra-50
High-energy Nd:YAG Q-switched pulsed lasers. The SGR-Extra series is a high-energy nanosecond Nd:YAG laser developed by Beamtech-laser in 2007. Distinctive beam-homogenization and ASE-suppression technologies provide fundamental-wavelength single-pulse energy up to 50J and pulse widths of 10-20ns, mainly for laser shock peening, coating damage testing and pretreatment, and pumping. For frontier research, customizable options include wavelength, repetition rate, pulse width, energy, spot mode and single-longitudinal-mode seeding. Years of technical and engineering experience in pulse trains and vehicle-mounted applications also support customized pulse-train lasers and field vehicle-mounted systems. For industry, especially laser shock peening, high energy, shielded beam paths, highly uniform output, engineering reliability and long-term stability provide reliable, cost-effective laser sources. SGR-Extra specification footnotes: all parameters are measured at the fundamental wavelength; third- and fourth-harmonic generation can be customized.
Overview
Specifications
| Parameter | Value |
|---|---|
| Wavelengths [Third and fourth harmonics customizable; general source note: all parameters measured at the fundamental wavelength] | 1064nm, 532nm |
| Repetition Rate [General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | 2Hz |
| Pulse Energy [1064nm; General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | 50J |
| Pulse Energy [532nm; General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | 25J |
| Pulse Width [1064nm; Full Width at Half Maximum ; General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | 12~15ns |
| Pulse Width [1064nm; Full Width at Half Maximum ; Optional ; General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | 15~20ns |
| Divergence [VRM; full angle measured where energy drops to 1/e²; general source note: all parameters measured at the fundamental wavelength] | ≤0.3mrad |
| Divergence [MM; full angle measured where energy drops to 1/e²; general source note: all parameters measured at the fundamental wavelength] | ≤4mrad |
| Near-Field Contrast (Peak/Average) [General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | ≤1.6:1 |
| Polarization [General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | Orthogonal Polarization |
| Energy Stability (RMS) [1064nm; General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | ≤1% |
| Power Drift (RMS) [1064nm; General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | ≤5% |
| Pointing stability (RMS) [General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | ≤20μrad |
| Jitter(RMS) [General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | ≤1ns |
| Linewidth [Standard Value ; General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | <1cm⁻¹ |
| Linewidth [Seed injection; general source note: all parameters measured at the fundamental wavelength] | <0.003cm⁻¹ |
| Spatial Beam Profile - Near-Field Gaussian Fit [VRM; General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | >70% |
| Spatial Beam Profile - Far-Field Gaussian Fit [VRM; General Source Note : All Parameters Are Measured in Fundamental-Frequency Mode] | >95% |
| Dimensions (L×W×H) [Source table dimension unit mm; no numeric dimensions provided] | Custom |
| Power Supply Requirements | 380V-50Hz, 3-phase |
| Water Cooling Requirements | Deionized Water, Chiller |
| Operating Temperature | 10-30℃ |
| Storage Temperature | 0-40℃ |
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