Automatic Relocking ECDL in Optical Tweezer Machine for Quantum Computing and Simulation

One of the key technologies in cold atom experiments such as optical atomic clocks, quantum computers and simulators, as well as in optical communication and time keeping, is taking advantage of the external-cavity diode lasers (ECDLs). Because of the high sophistication of cold atom experiments, it is very important to have full control over frequency and single mode operation of the laser. Fully automatic control in cold atom experiments, including relocking lasers' stabilization, frequency control of repumping lasers, control over currents in magnetic field coils [1] is a big challenge. On the other hand, it is crucial in high-TRL cold atom applications, such as transportable optical clocks [2]–[4], and quantum computers [5].