Long Range
Autocorrelation 0-100 ps

The figure shown above is an autocorrelation trace from one of our standard CPA-2001 units. The autocorrelation trace was collected using our model AC-150 autocorrelator and associated ODLDA data acqusition software. We took advantage of the long-range capability of the AC-150 to search for the presence of secondary pulses around the main pulse.

Secondary pulses are often found on poorly aligned femtosecond systems. Secondary pulses that are located far away from the main pulse can be found using the traditional photodetector and oscilloscope. Secondary pulses located too close to the primary pulse for differentiation using traditional photodetector and oscilloscope can be challenging to detect. The user can be induced into a false sense of security (but we bet your experiment will be affected by these pesty secondary pulses!).

Using the AC-150 we were able to confirm the absence of secondary pulses over a range exceeding 100 ps.