ASOPS TWIN 250
Within the M-Fiber Series any Menlo Systems femtosecond fiber laser can be combined on one platform. Here we specify just one of the possible system configurations.
In time resolved measurements an ultrafast pulse triggers a reaction and a second pulse takes a snapshot of the induced change. By shifting the arrival time of the probe pulse with respect to the pump pulse the stimulated process can be followed in time. The asynchronous optical sampling (ASOPS) technique allows high-speed scanning over some nanoseconds of time delay without a mechanical delay line. The ultrafast laser delivering the pump and probe pulses are locked together at a tunable repetition rate difference. The lasers can be also locked to the same repetition rate value and by shifting the relative phase between the laser pulses, the system will allow measurements in a reduced time window of some 100 ps. This operation mode is also known as ECOPS for electronically controlled optical sampling. Switching between the two modes of operation can be done at the touch of a button.
Advantages of the ASOPS technique
- faster aquisition times
- increased temporal measurement windows
- no moving mechanical components (improved beam pointing stability, increased scanning speed)
- ECOPS capability for measurements when shorter time windows are required
The ASOPS TWIN 250 system with output at 1560 nm enables measurements in a 4 ns window. The sub-150-fs pulses are delivered to the sample in 6-m long fiber optic patch cords. The fiber-coupled design makes this portable system ideal for integration into industrial environments or where remote detection is required.
