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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
Published on: April 24, 2014
Narrow linewidth operation of a tunable optically pumped semiconductor laser
Optics Express
|June 2, 2009
Summary
We achieved single-frequency operation in an optically pumped external cavity semiconductor laser. This laser delivers 400 mW output power with a 10 nm tuning range and a narrow linewidth below 5 kHz.
Area of Science:
- Optics and Photonics
- Semiconductor Lasers
Background:
- Optically pumped semiconductor lasers are crucial for various applications.
- Achieving stable, single-frequency operation with high output power is a key challenge.
Purpose of the Study:
- To demonstrate single-frequency operation of an optically pumped external cavity semiconductor laser.
- To characterize its output power, tuning range, and spectral linewidth.
Main Methods:
- Utilized an external cavity design for an optically pumped semiconductor laser.
- Employed electronic stabilization to a reference cavity.
- Measured output power, tuning range, and relative linewidth.
Main Results:
- Achieved single-frequency operation in a single spatial and longitudinal mode.
- Obtained output power up to 400 mW.
- Demonstrated a tuning range exceeding 10 nm.
- Stabilized the laser to achieve a relative linewidth less than 5 kHz.
Conclusions:
- The developed laser system offers high output power and broad tunability in a single frequency.
- Electronic stabilization effectively reduces the laser linewidth.
- This technology is promising for applications requiring narrow-linewidth, tunable laser sources.
