Laser noise reduction with additional filtering resonator

We study quantum computing technology based on neutral rubidium atoms. Effect of Rydberg blockade is use in order to achieve entanglement of two qubits. Rydberg states are obtained by shining on the array of cold atoms with two lasers. Stability of the driving lasers and noise reduction are required for high fidelity of quantum gates. Theoretical analysis and experimental setup of PDH-locking scheme with additional filtering resonator will be presented.