Theoretical characteristics of mid-infrared gain switched pulsed iron-doped ZnSe laser

Xu, Fei; Pan, Qikun; Chen, Fei; Chen, Yi; Zhang, Kuo; Yu, Dejin; Sun, Jian; Zhang, Ranran

doi:10.1016/j.optlastec.2022.108173

Cited by 3 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was also demonstrated that relaxation oscillation behavior of the GS Fe:ZnSe lasers could result in spike-like oscillation pulses under specific experimental conditions. Good agreement between oscillation dynamics predicted by laser rate equations and experimental results for the "zero-dimension model", where intracavity intensity and population inversion are considered as averaged over the laser cavity, has been reported in [7,8]. In this study, we focus on the numerical simulation and optimization of spike-like oscillation dynamics in RT mid-IR Fe:ZnSe lasers to achieve pulse compression of a 15-20 ns Q-switched Er:YSGG pump laser to a single-spike sub-ns pulse of the Fe:ZnSe laser operating at 4.4 µm.…”

Section: Introductionmentioning

confidence: 63%

“…Room temperature (RT) gain-switched (GS) mid-IR Fe:ZnSe lasers feature high laser efficiency (> 48% with respect to absorbed energy), high output energy (up to 1.4 J in a 150 ns pulse), and wide tunability in the mid-IR spectral range (3770-5050 nm) [5]. Several research groups have reported on relaxation oscillation behavior of optical pulses in GS Fe:ZnSe lasers [6][7][8]. It was also demonstrated that relaxation oscillation behavior of the GS Fe:ZnSe lasers could result in spike-like oscillation pulses under specific experimental conditions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling of sub-nanosecond Fe:ZnSe mid-IR gain-switched laser operating at room temperature

Yamamoto,

Fedorov

2024

Solid State Lasers XXXIII: Technology and Devices

View full text Add to dashboard Cite

Sub-ns pulse mid-IR lasers have many important scientific and industrial applications including optical parametric chirpedpulse amplification pump sources and material processing. Unfortunately, effective sub-ns mid-IR laser sources are limited. In this study, we report on the numerical simulation and optimization of a spike-like oscillation dynamic in room temperature mid-IR Fe:ZnSe lasers operating at 4.4 µm to obtain sub-ns relaxation oscillation pulses from 15 ns Qswitched Er:YSGG pump pulses. Optimizing cavity length, iron ion concentration, and output coupler reflectivity yielded a single 588 ps pulse (FWHM) with an output energy of 1.7 mJ. This was achieved using a pump pulse energy of 17mJ (140 mJ/cm 2 ) at a 2.79 µm wavelength.

show abstract

Section: Introductionmentioning

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Modeling of sub-nanosecond Fe:ZnSe mid-IR gain-switched laser operating at room temperature

Yamamoto,

Fedorov

2024

Solid State Lasers XXXIII: Technology and Devices

View full text Add to dashboard Cite

show abstract

Pulse high energy Fe: ZnSe laser pumped by Q-switched Er: YAG laser

Xu,

Pan,

Zhang

et al. 2023

Opt. Express

View full text Add to dashboard Cite

We report a pulse Fe: ZnSe laser pumped by an optical chopper Q-switched Er: YAG laser. By analyzed the spatial and temporal match of the gain and chopper, the maximum energy of the optical chopper Q-switched Er: YAG laser is 31mJ with the pulse width of 165 ns. By employing this Er: YAG laser as pump laser of Fe: ZnSe crystal, the maximum output energy of Fe: ZnSe laser is 10mJ with the pulse width of 80 ns at room temperature, that is the maximum energy of Fe: ZnSe laser at this Q-switched system to the best of our knowledge. We also study the directly Q-switched Fe: ZnSe laser, and the 2.7mJ mid-infrared laser with the pulse width of 200 ns is obtained at 80 K.

show abstract