光束分析仪特点: $n可以测量发散度、光腰直径、瑞利范围和像散 $n可以兼容连续波激光光源和重复率 ≥ 300 kHz的准连续波脉冲激光光源 $n光束质量测量符合ISO11146认证 $n可直接使用的完整系统,具有紧凑和灵活的设计 $n经TCP/IP将实时数据传输到 DataSocket 服务器,易于让其它程序对其进行处理

THORLABS  M2SET-BP209 光束分析仪技术参数

可以兼容连续波激光光源和重复率 ≥ 300 kHz的准连续波脉冲激光光源 
经TCP/IP将实时数据传输到 DataSocket 服务器,易于让其它程序对其进行处理。
Component Type Imperial Metric Imperial Metric
Breadboard Footprint 24" x 6" 600 mm x 150 mm 24" x 6" 600 mm x 150 mm
Beam Profiler BP209-VIS BP209-VIS/M BP209-IR BP209-IR/M
Wavelength Range 400 nm to 1100 nm 900 nm to 1700 nm
M² Measurement Range ≥ 1.0
Typical M² and K Accuracy ±5 %, Depending on Optics and Alignment
Beam Diameter Range at Beam Profiler Input Aperture 20 µm to 9 mm
Accepted Beam Diameter at Beam Profiler Input Aperture for 5% Accuracy in M² Measurement 20 µm to 4.5 mm
Maximum Input Beam Diameter at the Lensa 14 mm, Depending on Wavelength
(See Diagram Below)
20 mm, Depending on Wavelength
(See Diagram Below)
Minimum Detectable Divergence Angle  less than 0.1 mrad
Applicable Light Sources CW and Pulsed Sources ≥ 300 kHz
Power Range 10 nW to 10 W, Depending on Beam Diameter
Translation Range 150 mm
-100 mm to +50 mm from Focal Point
Lens Focal Length 200 mm
Optical Axis Height 50 mm to 120 mmb
Typical Measurement Time 20 s to 40 s, Depending on Beam Shape and Settings
  • 有关透镜的焦距和平移台行程如何限制M²系统的可测的光束直径,请参见教程标签。
  • 可以用一根长支杆使用在潜望镜组合中,延长高度。

OPHIR M²-200s 光束分析仪

BeamGage® Professional

  • 在少于 2 分钟内自动测量光束质量
  • 微调激光器进行较佳操作
  • 符合 ISO 标准
  • 专为连续使用而开发
  • 使用 UltracalTM 获得无以伦比的准确
  • 校准
  • 自动衰减调节
  • 脉冲和 CW,大多数光束直径和功率
  • 紧凑、便携


Not all commercial M² measuring instruments conform to the ISO 11146 method of employing a fixed position lens and moving detector. Instead, some manufacturers use a fixed position detector and a moving lens. If the laser beam is diverging or converging within the travel range of a moving lens, the reported M² value and other results can be significantly compromised. Spiricon's M²-200s Beam Propagation Analyzer is fully ISO 11146 compliant.
Automatic M2 - at Production Speeds
The M²-200s optical train uses a fixed position lens and camera. The mirrors that direct the focused beam into the camera are moved to precise locations, translating the beam through both the waist region and the far field regions. All these measurements and translations, as well as incremental beam attenuation, are automatically controlled by the M²-200s software. Software improvements in the M²-200s, including more efficient algorithm execution, has decreased the measurement reporting time by 2-3 times, making it possible to report M² in under two minutes.
Beam Propagation Analyzer: M2
Manual M2
Manual mode is available for beams that are too large or too small or at wavelengths outside the standard optical train.
Beam Propagation Analyzer: M2
Accuracy by Design
Spiricon products are known for accuracy. Using our patented Ultracal™ calibration method and auto apeturing, to exclude noise beyond the wings of the laser beam, you are assured of the most accurate measurements in the industry.
Designed by Our Customers
Spiricon has redesigned the M²-200, the world's top selling beam propagation system to include customer input, increased attention to durability, and operational robustness for continuous use applications; three shifts a day, seven days a week. Novice and seasoned users will appreciate these new features along with the time-tested excellence that the Spiricon M²-200 measurement system has provided over the years.
Main Screen Functions
Beam Propagation Analyzer: M2


Specifications for M²-200s
Accuracy ±5% typical, ±12% waist location and Rayleigh length typical (Note: Accuracy can be degraded by a variety of situations)
Measurement Cycle Time 2-3 minutes typical, depending on setup conditions and operating mode.
Camera Attachment Std C-mount, 90° camera on axis rotation
Translation System Step motor-driven lead screw
Translation Pitch 4 mm/rev optical pitch
Step Angle 1.8° (200 steps/rev)
Sample Range M² - 200 s 190 - 600 mm, typical
Camera Specifications (for GRAS20 camera)
Imager 1/1.8" CCD, 1600 x 1200 pixels
Dynamic Range 12 bit A to D
Frame Rates 7.5 FPS (at full resolution)
Pixel size 4.4um x 4.4um
Gain 0 to 25dB
Shutter Control Programmable from 110us to 70ms
S/N Ratio 59dB at min gain
Trigger Input Edge sensitive 3.3 / 5Vdc LVTTL / TTL (positive or negative, user programmable)
  Minimum pulse width 10us
Trigger Out External Trigger cable provided.
Voltage Requirement 3.3Vdc LVTTL, Programmable
Power Consumption Powered over Firewire Cable
Dimensions 44mm (1.74") wide, 29mm (1.14") tall and 66mm(2.6") deep
Mass 104g (3.7oz)
Storage Temperature -30°C to 65°C
Storage Humidity 95% maximum (non-condensing)
Operating Temperature 10°C to 40°C
Operating Humidity 95% maximum (non-condensing)
Power Requirements*
Line Voltage 95V AC to 250V AC
Line Frequency 47Hz to 63Hz
Maximum Power 4.5 Watts
* For the Optical Train only. The PC computer supplies the power for the system components, such as the CCD camera. An external power supply is provided for Laptop computer use.
Weight M²-200… 5.9 Kg (without camera)
Measurements M²x, M²y, Kx, Ky, BPPx, BPPy
(Statistical results Width at waist , Wy
are available on Divergence angle qx, qy
all measurements) Waist location Zx, Zy
  Rayleigh X, Y
  Asymmetry ratio
Wavelength Range  
Different lenses are needed for different wavelength regions.
The M²-200s model include 3 standard lenses with nominal 300mm focal lengths. See below.
M²-200s-FW 266 - 587nm (included)
  400 - 750nm (included)
  650 - 1125nm (included)
  1000 - 1300nm (optional)
Attenuation Range Nominally from ND 0 to ND 4.8. Actual values vary with wavelength.
Beam Size 0.5mm - 10mmM   ²-200s
  varies with wavelength, waist size and location, and M²
Damage Limits¹  
Camera 0.15 uW/cm² CW mode for a 10 mm input beam diameter
  1.0 uJ/cm² pulse mode for a 10 mm input beam diameter
  Both of the above for an M² =1 @ 1064nm
¹ CCD cameras can be damaged by power in excess of 100 mW/cm² or energy in excess of 100 mJ/cm². The M²-200s employs a focusing optic. While it may be that the laser input power or energy measures well below this damage threshold, it can easily exceed these levels when focused onto the camera sensor. Use caution and error on the side of safety. CCD cameras can be costly to repair or replace.


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