Design of a stabilized He-Ne laser by using a thin-film heater

Area of Science:

• Optics and Photonics
• Laser Physics
• Metrology

Background:

• Helium-Neon (He-Ne) lasers are crucial for various scientific and industrial applications.
• Achieving high frequency stability in lasers is essential for precision measurements.
• Existing stabilization methods may have limitations in performance or complexity.

Purpose of the Study:

• To design and evaluate a novel stabilization system for He-Ne lasers.
• To implement a two-mode method utilizing a thin-film heater for enhanced laser stability.
• To quantify the achieved frequency stability of the stabilized He-Ne laser.

Main Methods:

• The study details the design of a stabilization system for a He-Ne laser.
• A two-mode method incorporating a thin-film heater was employed for stabilization.
• Laser stability was assessed by measuring the beat signal between two stabilized lasers.

Main Results:

• The stabilization system successfully reduced frequency fluctuations in the He-Ne laser.
• The root Allan variance of the beat signal between two stabilized lasers was measured.
• A high stability level of 1.1 × 10(-12) at τ = 35 s was achieved.

Conclusions:

• The developed thin-film heater-based two-mode stabilization system offers excellent performance for He-Ne lasers.
• The achieved stability level is suitable for demanding metrology and scientific applications.
• This method provides a viable approach for enhancing laser frequency precision.