Temperature tuned distributed feedback dye laser with high repetition rate.

Area of Science:

• Optics and Photonics
• Laser Physics
• Spectroscopy

Background:

• Pulsed laser systems are crucial for various scientific investigations, requiring precise wavelength tunability and stability.
• Existing laser technologies may face limitations in spectral range, bandwidth, or long-term wavelength accuracy.
• The development of advanced laser sources is essential for pushing the boundaries of experimental research.

Purpose of the Study:

• To describe a novel pulsed subnanosecond laser system with broad spectral tunability.
• To detail the methods for achieving fine wavelength tuning and accurate stabilization.
• To present the performance characteristics, including bandwidth and repetition rate.

Main Methods:

• Development of a mirror-tuned distributed feedback dye laser.
• Direct pumping of the dye laser using a XeCl excimer laser.
• Electronic control of dye liquid temperature for fine wavelength tuning and stabilization.
• Implementation of a novel mechanical and electronic arrangement for long-time stability.

Main Results:

• The laser system is tunable over the 450 to 650 nm spectral range.
• Achieved spectral bandwidth of approximately 0.006 nm.
• Operates with a repetition rate of up to 200 Hz.
• Demonstrated long-time wavelength stability of 0.0028 nm.

Conclusions:

• The developed pulsed laser system provides a versatile and stable light source for spectroscopic and other scientific applications.
• The electronic temperature control and novel stabilization arrangement are effective for precise wavelength management.
• This laser technology offers significant improvements in performance for demanding experimental setups.