3 微米波长的全固态连续波模式锁定 Er:Lu2O3 激光器

IF 4.6 2区 物理与天体物理 Q1 OPTICS
Chunyun Su , Yangyang Liang , Hongkun Nie , Baitao Zhang , Jing Zhang , Jie Liu , Tao Li , Christian Kränkel
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引用次数: 0

摘要

在本文中,我们利用半导体可饱和吸收镜 (SESAM) 演示了 3 µm 波长的 Er:Lu2O3 激光器的稳定连续波被动模式锁定运行。我们通过啁啾镜进一步补偿了激光腔内的群延迟色散,在中心波长为 2844 nm、脉冲重复率为 83.5 MHz 时,以 150 mW 的平均输出功率实现了 12.0 ps 的最短脉冲持续时间。此外,在吸收泵功率为 8.3 W 时,我们实现了 213 mW 的最大连续波锁相输出功率,相当于 1.3 nJ 的脉冲能量。对脉冲序列的射频频谱分析表明,信噪比高达近 70 dB,这标志着出色的稳定性。据我们所知,这是首次报道在中红外波段实现超短脉宽模式锁定的 Er:Lu2O3 激光器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
All-solid-state continuous-wave mode-locked Er:Lu2O3 laser at 3 µm

In this paper, we demonstrated stable continuous-wave passively mode-locked operation of an Er:Lu2O3 laser at 3 µm, utilizing a semiconductor saturable absorber mirror (SESAM). By operating the laser in a dry nitrogen environment and utilizing a thermoelectric cooler (TEC) temperature control device to mitigate the thermal effects of Er:Lu2O3 and enhance laser stability, we further compensated for group delay dispersion within the laser cavity through chirped mirrors, an shortest pulse duration of 12.0 ps at a average output power of 150 mW was achieved, which occurred at a center wavelength of 2844 nm, and a pulse repetition rate of 83.5 MHz. Additionally, we achieved a maximum continuous-wave mode-locked output power of 213 mW at an absorbed pump power of 8.3 W, equivalent to a pulse energy of 1.3 nJ. The RF spectrum analysis of the pulse train indicated a high SNR of nearly 70 dB, signifying excellent stability. To the best of our knowledge, This is the first report on the realization of an ultrashort pulse width mode-locked Er:Lu2O3 laser in the mid-infrared band.

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来源期刊
CiteScore
8.50
自引率
10.00%
发文量
1060
审稿时长
3.4 months
期刊介绍: Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems
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