Simple and robust architecture of a laser system for atom interferometry.

Area of Science:

• Atomic Physics
• Quantum Optics
• Laser Spectroscopy

Background:

• Atom interferometry requires precise laser control for advanced techniques.
• Existing laser systems can be complex and lack versatility.

Purpose of the Study:

• To report a compact and robust laser system architecture.
• To enable multiple advanced atom interferometry techniques using a single system.

Main Methods:

• A tunable fiber laser (1560 nm) seeded a system of amplifiers and second-harmonic generators.
• Phase-locked, frequency-controllable laser beams at 780 nm were produced.
• Frequency manipulation at 1560 nm allowed ± 20 MHz detuning with constant power.

Main Results:

• Demonstrated a versatile laser system for Bragg diffraction, Bloch oscillations, and Raman diffraction.
• Achieved precise frequency control and stable output power.
• Successfully realized Ramsey-Raman and Bragg interferometers.

Conclusions:

• The developed laser system is compact, robust, and versatile.
• It facilitates advanced atom interferometry techniques with high performance.
• The system offers advantages for Raman spectroscopy and other atomic physics applications.