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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
Published on: April 24, 2014
Near-diffraction-limited diode laser arrays by wavelength beam combining
B Chann1, R K Huang, L J Missaggia
1MIT Lincoln Laboratory, 244 Wood Street, Lexington, Massachusetts 02420, USA. bchann@LL.mit.edu
Optics Letters
|September 1, 2005
Summary
Researchers achieved 35 W peak output power from a 100-element slab-coupled optical waveguide laser diode array. This high power was enabled by wavelength beam combining, demonstrating a significant advancement in laser technology.
Area of Science:
- Optics and Photonics
- Semiconductor Lasers
Background:
- High-power laser diode arrays are crucial for various applications.
- Scaling output power while maintaining beam quality remains a challenge.
Purpose of the Study:
- To demonstrate high output power from a slab-coupled optical waveguide laser diode array.
- To evaluate the beam quality of the developed laser system.
Main Methods:
- Utilized a 100-element slab-coupled optical waveguide laser diode array.
- Employed wavelength beam combining techniques.
- Measured output peak power and beam quality (M2).
Main Results:
- Achieved 35 W output peak power.
- Obtained a beam quality factor (M2) of approximately 1.35 in both dimensions.
- Demonstrated effective power scaling using wavelength beam combining.
Conclusions:
- The developed laser diode array architecture is capable of high-power output.
- Wavelength beam combining is an effective strategy for power scaling in laser diode arrays.
- The demonstrated performance shows promise for applications requiring high-power, good-quality laser beams.
