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Single-longitudinal-mode lasing of Ho:Tm:YAG at 2.091 microm
Applied Optics
|June 18, 2010
Summary
This study shows single-longitudinal-mode operation of Holmium-thulium-doped yttrium aluminum garnet (Ho:Tm:YAG) lasers at 2.091 µm. This was achieved using a monolithic crystal design pumped by a laser diode.
Area of Science:
- Laser Physics
- Solid-State Lasers
- Optoelectronics
Background:
- Holmium-thulium-doped yttrium aluminum garnet (Ho:Tm:YAG) lasers are crucial for various applications.
- Achieving single-longitudinal-mode (SLM) operation in these lasers is essential for high-resolution spectroscopy and coherent applications.
- Previous methods for SLM operation often involved complex setups.
Purpose of the Study:
- To demonstrate efficient single-longitudinal-mode (SLM) operation of a Ho:Tm:YAG laser.
- To achieve SLM operation at the 2.091 µm wavelength.
- To utilize a compact and robust monolithic laser design.
Main Methods:
- A monolithic Ho:Tm:YAG crystal was employed.
- The laser cavity was designed to support single-longitudinal-mode oscillation.
- Laser diode pumping was utilized to excite the Ho:Tm:YAG medium.
- Optical characterization was performed to verify SLM operation.
Main Results:
- Stable single-longitudinal-mode (SLM) operation was successfully achieved.
- The laser operated at a wavelength of 2.091 µm.
- The monolithic design demonstrated robustness and efficiency.
Conclusions:
- Single-longitudinal-mode (SLM) operation of Ho:Tm:YAG lasers at 2.091 µm is feasible using a monolithic, laser-diode-pumped design.
- This approach offers a simplified and effective method for generating high-quality laser output.
- The results pave the way for advanced applications requiring precise wavelength control.
