雷射光束品質分析儀

狹縫掃描式雷射光束品質分析儀

雷射光束的特性是能量非常集中,能量分佈的變化尺度往往只有1mm以內,肉眼是無法觀察出其中變化,因此如果要分析雷射空間能量的分佈狀況,必需要使用雷射光束分析儀才能明確的知道雷射能量分佈的情形,藉此也才能夠確實了解雷射的狀況是否正常。

雷射空間能量分佈一旦發生變化,雷射的聚焦能力即隨著改變,會直接影響雷射加工的品質與效率,因此雷射空間能量分析儀是調整與維護雷射設備必備的工具。

狹縫掃描式的雷射光束分析儀是以兩片5µm and 25µm不同寬度的狹縫交錯掃描的方式,彙整數據而得到雷射空間能量分佈的2D與3D影像,適用於分析近似高斯模態的雷射,相較於相機式的雷射光束分析儀,對於小尺寸的光束有更高的空間解析度,適合直接分析雷射的焦點;搭配沿著光軸移動的電控平移台,可自動量測光束品質M2,以更精確分析雷射的發散角,從而判斷雷射的聚焦能力。

使用雷射光束分析儀需要將雷射能量適當的衰減,在感測器接近飽和的狀態下量測,如果對雷射光束分析有任何疑問,歡迎與我們聯繫。

 
Item # BP209-VIS/M BP209-IR/M BP209-IR2/M
Sensor
Wavelength Range 200 - 1100
nm
900 - 1700 nm 900 - 2700
nm
Detector Material Si -
UV Enhanced
InGaAs Extended InGaAs
Aperture Diameter 9 mm
Scan Methods Scanning Slits, Knife Edge
Slit Size 5 µm and 25 µm
Minimum Beam Diameter 2.5 µm
Maximum Beam Diameter 9 mma
Scan Rate 2.0 - 20.0 Hz (Continuously Variable)
Sampling Resolution 0.12 - 1.24 µm (Depending on Scan Rate)
Power Range 1 µW - 10 W (Depending on Beam Diameter and Model; See Plot Below Right)
Amplifier Bandwidth 16 to 1000 kHz in 11 Steps (@ -1 dB)
Sample Frequency 0.2872 - 2.0 MHz
Dynamic Range 78 dB (Amplifier Switchable)
PD Reverse Bias Voltage 0 / -1.5 V (Switchable) 0 V
Signal Digitization 15 Bit
Head Size Ø79.5 mm x 60.0 mm (Ø3.13" x 2.36")
Including Rotation Mount
Minimum Pulse Rate 10 Hzb
Warm-Up Time for Rated Accuracy 15 min
Software
Displayed Parameters/Features X-Y-Profile, Centroid Position, Peak Position, Pseudo 3D Profile, Beam Width Clip Level/Second Moment (4σ), Gaussian Fit Applicable,
Pass/Fail Test with Color-Coded Results
Compliant to Norm ISO 11146 (Beam Widths, Divergence Angle and Beam Propagation Factor)
Minimum System Requirements Windows® 7 or Later, USB 2.0 High Speed Port, 4.0 GB RAM
M² Analysis System (M2 Extension Set Available Separately)
Compatible M² Extension Set(s)c M2MS or M2MS-AL M2MS
Compliant to Norm ISO 11146
Measured Parametersd M², Waist Width, Waist Position, Rayleigh Length, Divergence, Beam Pointing, Waist Asymmetry, Astigmatism
Environmental
Operating Temperature 5 °C to 35 °C
Storage Temperature -40 °C to 70 °C
  • BP209-VIS(/M) and BP209-IR(/M) beam diameter errors are <10% for a Ø9 mm beam. BP209-IR2(/M) beam diameter error is <20% for a Ø9 mm beam with <5° divergence.
  • 300 kHz using M² Option
  • Combine a BP209 series measurement head with an M2 extention set, available below, to give a complete M2 measurement system.
  • Using M² Option

All technical data are valid at 23 °C ± 5 °C and 45 ± 15% relative humidity.