Related Experiment Video
Updated: Feb 19, 2026
09:38
Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
Published on: December 18, 2015
12.7K
Compact, CO2-stabilized tuneable laser at 2.05 microns
Optics Express
|November 3, 2017
Summary
We developed a compact fiber laser at 2.05 microns stabilized using carbon dioxide (CO2) transitions. This laser offers high accuracy and stability for precise molecular spectroscopy applications.
Area of Science:
- Atomic, Molecular, and Optical Physics
- Laser Spectroscopy
- Fiber Optics
Background:
- Precise frequency control is crucial for spectroscopic applications.
- Carbon dioxide (CO2) transitions provide stable frequency references.
- Fiber-based laser systems offer compactness and robustness.
Purpose of the Study:
- To demonstrate a compact fiber-based laser system at 2.05 microns.
- To stabilize the laser frequency to a CO2 transition.
- To characterize the laser's accuracy, stability, and tunability.
Main Methods:
- Utilizing frequency modulation spectroscopy.
- Employing a gas-filled hollow-core fiber for CO2 stabilization.
- Developing a compact fiber-based laser architecture.
Main Results:
- Achieved absolute frequency accuracy of 5 MHz.
- Demonstrated frequency stability noise floor below 7 kHz (5 × 10^-11).
- Tuning range of ±200 MHz while maintaining stability and accuracy.
Conclusions:
- The developed laser system is highly accurate and stable.
- The compact fiber-based design is suitable for various spectroscopic applications.
- Stabilization to CO2 transitions provides a reliable frequency reference.
