Ophir customers often need to connect different optical components together to create an optimal setup to best meet their needs. In order to do this, Ophir provides mutual interconnections between different Ophir products via adapters with various threads, designed to exactly fit required optical path distances for each device. This is an integrated solution, prealigned and ready to use.
Our line of Beam Profiler cameras and sensors of various formats can be connected to any beam splitter or attenuator in case the laser power needs to be reduced. If the beam size or wavelength does not fit the sensor format, beam expanding/reducing/wavelength transforming devices can also be fitted as shown in figure 1.
Figure 1. Beam profile of a 4 kW fiber laser focused to a spot size of 150 microns.
To get to the best configuration for your specific needs, try Beam Profile Finder - or contact your Ophir sales representative.
Examples of device integration:
Case 1: A 300 Watt ,1070nm CW laser beam is focused to 60 µm spot. In this case, the NanoScan with Ge sensor can be used but the laser beam needs to be significantly attenuated, in order not to damage the slit or the sensor.
Solution 1: Use the NanoScan Ge in combination with the LBS-300s-NIR – Beam splitter/attenuator system. In this case, all the components are connected directly without any special adapters (Figure 2).
Solution 2: In case the customer prefers BeamGage software, SP920s beam profiler can be used. However, the image on the CCD would be very small and will cover just 15pixels of the CCD in X and Y axis. Thereby, it is recommended to install the X4 or X6 beam expander between of LBS-300s-NIR and SP920s camera (Figure 3).
Figure 2: NanoScan Ge, LBS-300s-NIR No adapters are required
Figure 3: SP920s , LBS-300s-NIR X4 expander with adapters SP90567+SPG01698 Or X6 beam expander with adapters SP90567 + 4ea. SPG02067
|Case 2: A High energy 1J ,1064 nm parallel laser beam of wide, 12mm diameter is operating at15Hz and 7ns pulses. The beam is both wide and high energy. Thus, it needs significant attenuation and reduction to fit the standard Ophir 1/1.8" CCD format of SP920s beam profiler. For this purpose, we can use a combination of the SP920 beam profiler with the X4 Beam reducer and the LBS-100-YAG (Figure 4)||
Figure 4: SP920s, X4Beam Reducer LBS-100 YAG with adapter SPZ17029
|Case 3: The silicon beam profiler sensors operate in the wavelength range 350-1100nm. To measure shorter wavelengths such as 266nm, the UV image converter can be used. If we need to measure a 10Hz, 266nm laser with a beam diameter of 3.5mm and 30mJ energy, the energy density is much higher than the saturation intensity of the UV converter. Thus, in this case we attach a stackable beam splitter to the UV converter to reduce the intensity to the required level.||
Figure 5: SP920s, 1X UV Image Converter, Beam splitter SPZ17015
Following table was summarized in order to find the correct adapter for each combination: