Spiricon has an extensive array of accessories for beam profiling. There are components for attenuating, filtering, beam splitting, magnifying, reducing and wavelength conversion. There are components for wavelengths from the deep UV to CO2 wavelengths. Most of the components are modular so they can be mixed and matched with each other to solve almost any beam profiling requirement needed.
LBS-300 Beam Splitters
The LBS-300 beam splitter attachment for C-mount, CS-mount, or Ophir mount cameras allow you to measure laser beams with diameters up to 15mm and powers ranging from 10 mWatts to ~400 Watts. The beam sampler is designed so that the preferential polarization selection effect of a single wedge is cancelled out and the resulting beam image is polarization corrected to restore the polarization components of the original beam.The beam sampler operates by reflecting the incoming beam from the front surfaces of a pair of wedges through 90 degrees into the camera. Approximately 99% of the beam is transmitted through the beam sampler with 0.01% passed on to the camera. A set of adjustable ND filters are provided to make final intensity adjustments to the beam before it reaches the camera imager. Also, two LBS-300s can be coupled in series providing up to a 10-8 attenuation.
1440-1605nm Phosphor Coated CCD Cameras For NIR Response
The Phosphor coating technology allows you to view NIR (1140 - 1605 nm) lasers and light sources to measure them with the BeamGage laser beam profiling sofware. The anti-Stokes phosphor coating produces visible photons at a rate troughly the square of the input signal. This non-linearity or Gamma is corrected in BeamGage's Gamma Correction feature. Thus an accurate, linear image of the beam profile is obtained premitting standard, cost effective analysis of NIR beams.
ATP-K Variable Attenuator
The ATP-K attenuates your laser without ghost reflections or fringes. A knob operates the variable wedge attenuator providing a continuously variable ND value of 1.7 to 4.6. The ATP-K also comes with a fixed ND 2.8 attenuator. The ATP-K is designed to be used with the HP-XXX high power beam splitters. Splitters attach directly the ATP-K via the C-mount. The ATP-K has simple, reproducible settings and a wavelength range of 360 to 2500 nm.
LBS Beam Splitters Specifications
|
|
LBS-300-VIS-OP
|
LBS-300-NIR-OP
|
LBS-300-BB-OP
|
| Spectral Range (nm) |
400-700 |
1064 |
190-1550 |
| Wedge Material |
BK7 |
UVFS |
| Antireflection Coating |
<1% |
None, 4% |
| Clear Aperture (mm) |
17.5 |
| Optical Density Filters (included) |
ND0.3, 0.7,1.0,2.0,3.0. 4.0 |
| Filter Slides |
3 |
9 |
| Maximum Allowable Input to Filter (W/cm2) |
50 |
| Max Energy Density (J/cm2) |
1 on ND Filter |
| Power Range (W) |
10nW-400 |
| Operating Mode |
CW and Pulsed |
Phosphor Coated CCD Specifications
|
|
SP-1550M-OP
|
| Application |
NIR wavelengths, 1/2 inch format |
| Spectral Range (nm) |
1440-1605 |
| Maximum Beam Size |
4.7 x 5.5 mm |
| Pixel Size (µm)(1) |
8.4 x 9.8 |
| Minimum System Dynamic Range(2) |
30dB |
| Linearity with Power |
±5% |
| Spatial Uniformity |
±5% |
| Accuracy of Beam Width |
±5% for beams larger than 0.6 mm |
| Scan Rate(3) |
30 Hz |
| Shutter Duration |
1/60 to 1/100,000 sec, 9 steps |
| Gain Control |
Manual Adjustment |
| Saturation Intensity @ 1550 nm (mW/cm2) |
7 |
| Minimum Power Density |
50 µW/cm2 |
| Damage Threshold |
50 W/cm2 |
| Dimensions |
37 x 34 x 56 mm, CCD recess = 12.5 |
| Operating Mode |
CW and Pulsed, Interline transfer progressive scan CCD |
| Clear Aperture |
640 x 480 |
| Shutter |
17 ms to 10 µs in 9 steps |
| Minimum Spot Size |
500 |
| Trigger Input |
None |
| Beam Size Accuracy (%) |
±5 |
| Computer Interface |
RS-170 Framegrabber |
(1) Despite the small pixel size the spatial resolution will not exceed 50 µm due to diffusion of the light by the phospher coating.
(2) Signal to noise ratio is degraded due to the gamma of the phospher's response. Averaging or summing of up to 256 frames improves dynamic range by upto 16x = +24 dB.
(3) In normal (non-shuttered) camera operation, the frame rate is the fastest rate at which the laser may pulse, and the camera can still separate one pulse from the next. With electronic shutter operation, higher rate laser pulses can be split out by matching the laser repetition to the shutter speed.
Variable Attenuator Specifications
|
|
ATP-K-OP
|
| Dimensions (mm) |
94 x 43 x 28 |
| Max Energy Density (J/cm2) |
5 |
| Spectral Range (nm) |
380-2500 |
| Clear Aperture (mm) |
15 |
| Power Density, Maximum Average (W/cm2) |
12.7 |
| Power Range |
100mW/mm diameter |
| Nominal ND Value |
ND=1.7-4.6 Max ND: 7.4 (with fixed 2.8 gray-glass attenuator) |
| Mounting |
C-Mount threads |
| Base Mounting |
1/4-20 |
