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Diode pumping of a solid state laser using evanescent field fiber optic coupling: a proposed technique
Applied Optics
|August 12, 2010
Summary
This study proposes using optical fibers for evanescent coupling of laser diode energy into solid-state laser rods. This method enhances efficiency through improved overlap between the laser mode and pumped volume.
Area of Science:
- Optics and Photonics
- Laser Physics
- Materials Science
Background:
- Traditional laser pumping methods face challenges in efficiency and energy delivery.
- Solid-state lasers require precise energy coupling for optimal performance.
Purpose of the Study:
- To introduce a novel method for evanescently coupling pump energy from laser diodes into solid-state laser rods.
- To enhance the efficiency of solid-state lasers through improved optical pumping.
Main Methods:
- Arranging optical fibers in parallel around the laser rod's barrel.
- Utilizing a significant refractive index difference between optical fibers and the laser material.
- Leveraging evanescent coupling for energy transfer.
Main Results:
- Demonstrates the feasibility of evanescent coupling for laser pumping.
- Achieves high overlap between the laser resonating mode and the pumped volume.
- Suggests potential for efficient laser operation.
Conclusions:
- Evanescent coupling via optical fibers offers a promising approach for solid-state laser pumping.
- The proposed technique can lead to more efficient and compact laser systems.
