Pumping dye lasers by optical fibers: a simple and efficient device.

Area of Science:

• Optics and Photonics
• Laser Physics

Background:

• Pulsed dye lasers are versatile light sources.
• Efficient pumping methods are crucial for laser performance.

Purpose of the Study:

• To systematically study the performance of a pulsed dye laser pumped through optical fibers.
• To investigate the effects of a single-fiber and dual-fiber design on laser output.

Main Methods:

• Utilizing a simple design with a single optical fiber (1-mm core) for pumping.
• Employing the second harmonic of a Nd:YAG laser as the pump source.
• Investigating pulse time lengthening and delayed two-pulse operation with a dual-fiber device.

Main Results:

• Achieved dye pulse energies in the millijoule per pulse range.
• Demonstrated efficiencies as high as 50% with improvable optics.
• Successfully studied pulse time lengthening and delayed two-pulse operation.

Conclusions:

• Optical fiber pumping offers an efficient method for pulsed dye lasers.
• A single-fiber design is effective for achieving high pulse energies.
• Dual-fiber configurations enable control over pulse timing.