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首页> 外文会议>2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference >Stable, highly efficient QCW all-fiber laser at 2.8 µm
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Stable, highly efficient QCW all-fiber laser at 2.8 µm

机译：2.8 µm的稳定，高效的QCW全光纤激光器

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摘要

Compact, robust and efficient laser sources near 3 µm are needed for applications such as laser surgery, mid-infrared laser pumping and sensing. Extending the benefits of fiber laser technology to this wavelength region has proven a significant challenge, mainly due to the limited number of host glasses with maximum phonon energies that are sufficiently low for emission at this wavelength. Recent results [1] have shown that erbium-doped fluoride glass appears to be an ideal candidate, thanks to the recent availability of high quality, low loss double-clad fibers, the capability of low loss fusion splicing and a strong photosensitivity that allows writing strongly reflective fiber Bragg gratings (FBGs) [2]. QCW fiber lasers are ideal for materials processing applications due to the capability of adjusting pulse duration, peak power and repetition rate and thus control the process. This versatility is especially important in applications such as laser surgery, where one wants to control both ablation depth and limit collateral thermal damage. There have been a limited number of demonstrations of QCW emission in 3 µm Er3+-doped fluoride glass and all have shown significant output power as well as wavelength fluctuations that would limit the useful applications of these lasers [3].
机译：适用于激光手术，中红外激光泵送和感应等应用，需要紧凑，鲁棒和高效的激光源。将光纤激光技术的益处扩展到该波长区域已经证明了显着的挑战，主要是由于具有足够低的主体玻璃数量有限的主体玻璃，其在该波长处发射足够低。最近的结果[1]表明，由于最近的高质量，低损耗双包纤维，低损耗融合剪裁和允许写入的强烈光敏性，因此，掺铒氟化物玻璃似乎是理想的候选者。强烈反光纤维布拉格光栅（FBGS）[2]。由于调整脉冲持续时间，峰值功率和重复率，因此控制过程，QCW光纤激光器是材料处理应用的理想选择应用。这种多功能性在激光手术等应用中尤为重要，其中人们希望控制消融深度并限制抵押热损坏。在3μmER 3 + - 掺杂氟化物玻璃中有有限数量的QCW发射的演示，并且所有都显示出显着的输出功率以及波长波动，这将限制这些激光器的有用应用[ 3]。

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