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Single-frequency diode-pumped Nd:YAG ring laser with no intracavity elements.

G T Maker, G P Malcolm, A I Ferguson

|October 16, 2009

Summary

This study presents a novel optical diode for ring lasers, eliminating intracavity elements. The design enables efficient, single-frequency operation in diode-pumped lasers.

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Area of Science:

Optics and Photonics
Laser Physics
Materials Science

Background:

Ring lasers typically require complex intracavity elements for unidirectional operation.
Achieving single-frequency output is crucial for many laser applications.

Purpose of the Study:

To develop a simplified technique for unidirectional operation of ring lasers.
To demonstrate single-frequency output using the novel design.

Main Methods:

Utilizing the Faraday effect within the gain medium.
Employing an out-of-plane Brewster-angled rod design for the gain material.
Fabricating the gain material as a prism for a two-mirror ring cavity.

Main Results:

Demonstrated unidirectional operation without intracavity elements.
Achieved single-frequency operation of a diode-pumped Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser.
Obtained 190 mW single-frequency output at 1.064 micrometers with a 1-W diode pump.

Conclusions:

The proposed optical diode design simplifies ring laser construction.
This technique offers an efficient method for achieving single-frequency laser output.

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