Fiber-bulk hybrid Er:YAG laser with 1617 nm single frequency laser output

Zhu, Liyang; Gao, Chunqing; Zheng, Yi; Gao, Mingwei

doi:10.7452/lapl.201210062

Cited by 13 publications

(6 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The master laser in the injection-locked system for coherent lidar is also one of the most promising applications of the 1.6 μm SFFL with high power and narrow linewidth [6]. Single-frequency (SF) lasers operating at 1.6 μm have been achieved to generated and amplified based on Er 3+doped YAG crystals [7][8][9][10][11]. Nonetheless, lasers with all-fiber structure possess unique advantages of their compactness, excellent beam quality, environmental reliability, and start to challenge the bulk solid-state lasers [12].…”

Section: Introductionmentioning

confidence: 99%

High-efficiency and high-power single-frequency fiber laser at 1.6 μm based on cascaded energy-transfer pumping

et al. 2020

View full text Add to dashboard Cite

In this paper, a technique combing cascaded energy-transfer pumping (CEP) method and master-oscillator power-amplifier (MOPA) configuration is proposed for power scaling of 1.6-μm-band single-frequency fiber lasers (SFFLs), where the Er 3+ ion has a limited gain. The CEP technique is fulfilled by coupling a primary signal light at 1.6 μm and a C-band auxiliary laser. The numerical model of the fiber amplifier with the CEP technique reveals that the energy transfer process involves the pump competition and the in-band particle transition between the signal and auxiliary lights. Moreover, for the signal emission, the population density in the upper level is enhanced and the effective population inversion is achieved due to the CEP. A single-frequency MOPA laser at 1603 nm with an output power of 52.6 W and an improved slope efficiency of 30.4% is obtained experimentally through the CEP technique. Besides, a laser linewidth of 5.2 kHz and a polarization-extinction ratio of ~18 dB are obtained at the maximum output power. The proposed technique provides an optional method of increasing the slope efficiency and power scaling for fiber lasers operating at L-band.

show abstract

Section: Introductionmentioning

confidence: 99%

High-efficiency and high-power single-frequency fiber laser at 1.6 μm based on cascaded energy-transfer pumping

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The maximum output power of the 1617 nm laser was 160 mW, with a slope efficiency of 5% [11]. In 2012, Zhu et al presented a single frequency Er:YAG laser operating at 1645 nm and 1617 nm, which was resonantly pumped by a 1532 nm fiber laser [12]. The maximal single frequency output power at 1617 nm was 640 mW, with a slope efficiency of 36.02%.…”

Section: Introductionmentioning

confidence: 99%

Fiber-bulk hybrid Er:YAG laser with single frequency output at the wavelengths of 1620 nm and 1656 nm

Shi

Gao

et al. 2019

Laser Phys. Lett.

Self Cite

View full text Add to dashboard Cite

A fiber-bulk hybrid Er:YAG single frequency laser at the wavelengths of 1620 nm and 1656 nm is demonstrated. The laser is pumped by a 1532 nm Er,Yb fiber laser. Two intra-cavity etalons are utilized to realize the single frequency operation. The laser achieved up to 478 mW and 276 mW single-longitudinal-mode output at 1620 nm and 1656 nm, respectively. To the best of our knowledge, this is the first time a continuous single-longitudinal-mode laser output at 1620 nm and 1656 nm in a Er:YAG laser has been achieved.

show abstract

“…For certain applications, a stable single longitudinal mode (SLM) operation is required. Some of the techniques have been used to obtain 1.6 μm SLM operation including lasers with intracavity etalons [3][4][5], monolithic undirectional ring lasers [6], and the monolithic nonplanar ring oscillator (NPRO) [7][8][9], which has a complex crystal structure. However, a 'twisted-mode' technique to obtain a single mode laser was first introduced by Evtuhov and Siegman in 1965 [10].…”

Section: Introductionmentioning

confidence: 99%

Tunable single-longitudinal-mode Er:YAG laser using a twisted-mode technique at 1.6 μm

et al. 2015

View full text Add to dashboard Cite

We demonstrated a diode-pumped tunable single-longitudinal-mode Er:YAG laser using a twisted-mode technique at 1.6 μm. The maximum single-longitudinal-mode output power of 315 mW was obtained at 1645.3 nm, corresponding to a slope efficiency of 7.7%. The singlelongitudinal-mode laser has a beam quality factor of M2 ~ 1.07. The output wavelength can be tuned from 1644.8 to 1646.1 nm by changing the etalon angle. In addition, by changing an output coupler, a maximum single-longitudinal-mode output power of 130 mW at 1617.2 nm with a slope efficiency of 3.3% was also achieved. The output wavelength can be tuned from 1616.9 to 1617.4 nm by changing the etalon angle. The twisted-mode Er:YAG laser operated at single-longitudinal mode is being reported for the first time to the best of our knowledge.

show abstract

Fiber-bulk hybrid Er:YAG laser with 1617 nm single frequency laser output

Cited by 13 publications

References 14 publications

High-efficiency and high-power single-frequency fiber laser at 1.6 μm based on cascaded energy-transfer pumping

High-efficiency and high-power single-frequency fiber laser at 1.6 μm based on cascaded energy-transfer pumping

Fiber-bulk hybrid Er:YAG laser with single frequency output at the wavelengths of 1620 nm and 1656 nm

Tunable single-longitudinal-mode Er:YAG laser using a twisted-mode technique at 1.6 μm

Contact Info

Product

Resources

About