All-fiber frequency-stabilized erbium doped ring laser

Area of Science:

• Atomic, Molecular, and Optical Physics
• Laser Physics and Photonics

Background:

• Frequency stabilization is critical for high-precision spectroscopy and metrology.
• All-fiber laser systems offer advantages in compactness and robustness.

Purpose of the Study:

• To develop and investigate an all-fiber frequency-stabilized ring laser system.
• To utilize acetylene gas as a reference for laser frequency stabilization.

Main Methods:

• An all-fiber ring laser system was designed with an integrated hollow-core fiber gas cell.
• Acetylene gas was used within the fiber cell for nonlinear absorption spectroscopy.
• Three distinct laser frequency stabilization schemes were explored.

Main Results:

• The laser frequency was successfully stabilized to a specific acetylene absorption line.
• The minimum Allan deviation achieved was 4.4 × 10⁻¹¹ after 100 seconds.
• Performance of different stabilization schemes was comparatively analyzed.

Conclusions:

• The all-fiber system demonstrates excellent frequency stability using acetylene as a reference.
• This technology has potential applications in precision measurement and optical frequency standards.