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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

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Published on: April 24, 2014

Low-threshold, single-frequency, coupled cavity Ti:sapphire laser.

A J Tiffany, I T McKinnie, D M Warrington

|July 20, 1997

Summary

A new coupled resonator design enables stable, narrow-bandwidth, tunable laser pulses. This solid-state laser cavity offers a low threshold, making it suitable for various laser media.

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Area of Science:

Optics and Photonics
Laser Physics

Background:

Developing tunable solid-state lasers requires precise control over optical modes.
Narrow-bandwidth operation is crucial for many spectroscopic and sensing applications.

Purpose of the Study:

To introduce a novel coupled resonator design for narrow-bandwidth, tunable, solid-state lasers.
To demonstrate stable, single-longitudinal-mode operation in a titanium:sapphire laser system.

Main Methods:

Development of a novel coupled resonator configuration.
Characterization of laser performance, including operating range, mode structure, and threshold fluence.
Theoretical modeling to predict and optimize cavity mode structure.

Main Results:

Achieved stable, single-longitudinal-mode, gain-switched titanium:sapphire pulses.
Demonstrated a 130-nm operating range, limited by cavity optics.
Observed a low threshold fluence of 0.7 Jcm(-2).

Conclusions:

The novel coupled resonator is effective for generating narrow-bandwidth, tunable laser pulses.
The low threshold fluence and tunable nature make this cavity design versatile for different laser media.
The developed model aids in predicting and optimizing laser performance.

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