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
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度
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.
Manual M2
Manual mode is available for beams that are too large or too small or at wavelengths outside the standard optical train.
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
Specifications for M²-200s
General
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
<3.5watts
Dimensions
44mm (1.74") wide, 29mm (1.14") tall and 66mm(2.6") deep
Mass
104g (3.7oz)
Environmental
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.
Physical
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
Astigmatism
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.
