Frequency stabilization of a He-Ne laser using lateral stress

Area of Science:

• Atomic, Molecular and Chemical Physics
• Optics
• Quantum Optics

Background:

• Frequency stabilization is crucial for precision measurements and applications.
• Internal mirror He-Ne lasers are common light sources but require stable frequencies.
• Existing stabilization methods can be complex or costly.

Purpose of the Study:

• To report a novel and simple method for frequency stabilization of internal mirror He-Ne lasers.
• To demonstrate high relative frequency stability using the proposed technique.

Main Methods:

• Modulating the laser cavity length by applying lateral stress to stretch the front part of the He-Ne laser tube.
• Stabilizing the laser cavity length at the Lamb dip feature for frequency locking.

Main Results:

• Achieved a relative frequency stability of +/-4.1 x 10(-9).
• Demonstrated stability over observation periods of 1 hour or longer.
• The method is described as new and simple.

Conclusions:

• The reported method offers an effective and straightforward approach for He-Ne laser frequency stabilization.
• This technique can be valuable for applications requiring precise laser frequencies.
• The achieved stability level is suitable for various scientific and technical uses.