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1.
A Q-switched high efficient Ho:YAlO3 (Ho:YAP) laser pumped by a diode-pumped Tm:YLF laser at room-temperature is realized. The maximum output energy reaches 1.58
mJ under the repetition frequency of 5 kHz, when the incident pump power is 15.6 W. The pulse width is 22 ns. The wavelength
is 2118 nm when the transmission of output coupler is 30%. The beam quality factor is M
2 ∼ 1.39 measured by the traveling knife-edge method. 相似文献
2.
X. M. Duan B. Q. Yao L. L. Zheng C. T. Wu L. J. Li Y. J. Zhang Y. L. Ju Y. Z. Wang 《Laser Physics》2008,18(8):951-953
We report on a diode-pumped Tm, Ho:YAlO3 (c-cut) laser operating at 274 K. The maximum output power reaches 163 mW at an absorbed pump power of 2.3 W. A conversion efficiency from the absorbed pump power to laser output of 7.1% is demonstrated in Tm, Ho:YAlO3, corresponding to a slope efficiency of 11.1%. The output center wavelength of Tm, Ho:YAlO3 is 2102 nm with about a 2-nm FWHM. As far as we know, our work represents the first investigation of the laser performance of c-cut Tm, Ho:YAlO3 at 274 K. 相似文献
3.
Single-longitudinal-mode operation of a b-cut Tm(5%), Ho(0.3%):YAlO3 microchip laser is reported. An incident pump power of 1.85 W is used to generate the maximum single-frequency output power
of 30 mW at 2000.4 nm, which represent a 1.6% optical-to-optical conversion efficiency. To the best of our knowledge, this
is the first time to report on single-frequency operation in Tm,Ho:YAP lasers. 相似文献
4.
A diode-pumped Nd3+:YAlO3 (Nd:YAP) laser emitting at 1339 nm is described. At the incident pump power of 17.8 W, as high as 3.4 W of continuous-wave
(CW) output power at 1339 nm is achieved. The slope efficiency with respect to the incident pump power was 23.6%. The output
power stability over 60 min is better than 3.5%. The laser beam quality M
2 factor is 1.33. 相似文献
5.
G. Li B. Q. Yao Z. M. Jiang X. M. Duan Z. G. Wang Y. L. Ju Y. Z. Wang 《Laser Physics》2009,19(12):2151-2154
Cryogenic temperature operation of a c-cut Tm(5%),Ho(0.3%):YAlO3 laser end-pumping by a fiber-coupled laser-diode is reported. A 2.55 W incident pump power is used to generate 160 mW of
laser output, representing a 7.1% optical-to-optical conversion efficiency respect to the incident pump power. In the experiment,
three wavelengths—2.04, 2.10, and 2.13 μm oscillation have been observed simultaneously, which is agreement with the inherent
a-axis polarization fluorescence spectra of Tm,Ho:YAlO3. Also single wavelength oscillation performance has been observed which is centered at 2.13 μm. 相似文献
6.
T. Zhao D. Y. Shen H. Chen X. F. Yang X. D. Xu D. H. Zhou J. Xu 《Laser Physics》2011,21(11):1851-1854
We describe efficient operation of a Ho:LuAG laser in-band pumped by a cladding-pumped narrow linewidth Tm fiber laser at
∼1907 nm. With 1.0 at % Ho3+-doped LuAG and an output coupler of 6% transmission, the laser had a threshold pump power of ∼0.85 W and generated 18.04
W of continuous-wave output power at 2124.5 nm for 35 W of incident pump power, corresponding to an average slope efficiency
with respect to incident pump power of 53.4%. 相似文献
7.
We report a CW Ho:YAlO3 (Ho:YAP) laser at room temperature pumped by a Tm:YLF laser with a Volume Bragg Grating (VBG) instead of the conventional
mirror. The Ho:YAP laser operated at 2117.9 nm with output power 9.12 W. The optical-to-optical conversion efficiency is 60.4%
and slope efficiency is 71.2%. The Ho:YAP output wavelength is centered at 2117.9 nm with bandwidth of about 1 nm. The beam
quality factor is M
2 ∼ 1.29 measured by the traveling knife-edge method. 相似文献
8.
B. Z. Li C. G. Sun A. F. Zang X. H. Zhang M. Zhao X. Y. Chen J. B. Wang G. B. Chen 《Laser Physics》2011,21(5):891-893
A dual-wavelength continuous-wave (CW) diode end-pumped Nd3+:YAlO3 (Nd:YAP) laser that generates simultaneous laser action at the wavelengths 1064 and 930 nm is demonstrated. A total output
power of 2.15 W (1.57 W at 1064 nm and 0.58 W at 930 nm) for the dual-wavelength was achieved at the incident pump power of
17.8 W with optical conversion efficiency of 12.1%. The M
2 values for 930 and 1064 nm lights were found to be around 1.21 and 1.32, respectively. 相似文献
9.
We reported the Q-switched Ho:YAlO3 laser with a volume Bragg grating pumped by the Tm doped fiber laser. The Ho:YAP laser maximum output energy was 1.04 mJ
under the repetition frequency of 5 kHz when the incident power was 12.49 W with the threshold of 2.38 W. The Ho:YAP output
wavelength was centered at 2117.9 nm with bandwidth of about 0.3 nm. The pulse width is 23.9 ns. 相似文献
10.
It is reported that efficient continuous-wave (CW) red laser generation at 670 nm in a LBO crystal at type-I phase matching
direction performed with a diode-pumped Nd3+:YAlO3 (Nd:YAP) laser. With incident pump power of 15.6 W, output power of 273 mW at 670 nm has been obtained using a 10 mm-long
LBO crystal. At the output power level of 273 mW, the output stability is better than 3.7%. 相似文献
11.
We report an efficient laser emission on the 1066 nm 4 F 3/2 to 4 I 11/2 transition in Nd:LuVO4 under the pump with diode laser at 888 nm. Continuous wave (CW) 11.2 W output power at 1066 nm is obtained under 18.3 W of incident pump power; the slope efficiency with respect to the incident pump power was 71.9%. Moreover, intracavity frequency doubling with LiB3O5 (LBO) nonlinear crystal yielded 4.2 W of green light at 533 nm. An optical-to-optical efficiency with respect to the incident pump power was 23.0%. 相似文献
12.
An efficient and narrow linewidth Cr:ZnSe laser pumped by Tm,Ho:GdVO4 laser with a volume Bragg grating (VBG) is reported. The Cr:ZnSe laser operated at 2580 nm with emitting linewidth (FWHM)
about 0.8 nm. Using the volume Bragg grating, 3.57 W of output was achieved under total incident pump power of 13.1 W, corresponding
to optical-to-optical conversion efficiency of 27.3%. By use of conventional mirror, 4.11 W of output was achieved the same
incident pump power and the optical-to-optical conversion efficiency is 31.4%. 相似文献
13.
We report an efficient laser emission on the 1341 nm 4 F 3/2 to 4 I 13/2 transition in Nd:GdVO4 under the pump with diode lasers at 888 nm. Continuous wave (CW) 6.58 W output power at 1341 nm is obtained under 18.3 W of incident pump power; the slope efficiency with respect to the incident pump power was 45.1%. Moreover, intracavity frequency doubling with LiB3O5 (LBO) nonlinear crystal yielded 1.77 W of red light at 670.5 nm. 相似文献
14.
We reported the Ho:YAP laser pumped by the Tm:YAP laser. The Ho:YAP laser maximum output power was 4.91 W when the incident power was 10.1 W with the threshold of 2.63 W. The slope efficiency was 63.7%, corresponding to an optical-to-optical efficiency of 48.6%. The Ho:YAP output wavelength was centered at 2118.2 nm with bandwidth of about 1 nm. We estimate the beam quality to be M2 = 1.29. 相似文献
15.
G. C. Sun Y. D. Lee B. Z. Li X. Y. Chen M. Zhao J. B. Wang X. H. Zhang G. Y. Jin 《Laser Physics》2011,21(6):985-987
A dual-wavelength continuous-wave (CW) diode end-pumped Nd3+:YAlO3 (Nd:YAP) laser that generates simultaneous laser action at the wavelengths 930 and 1341 nm is demonstrated. A total output
power of 778 mW for the dual-wavelength was achieved at the incident pump power of 17.8 W. Furthermore, intracavity sum-frequency
mixing at 930 and 1341 nm was then realized in a LBO crystal to reach the yellow-green range. We obtained a total CW output
power of 103 mW at 549 nm. 相似文献
16.
We report an efficient laser emission on the 1061 nm 4
F
3/2 to 4
I
11/2 transition in Nd:CNGG under the pump with diode laser at 885 nm. Continuous wave (CW) 5.4 W output power at 1061 nm is obtained
under 17.4 W of incident pump power; the slope efficiency with respect to the incident pump power was 36.2%. Moreover, intracavity
frequency doubling with LiB3O5 (LBO) nonlinear crystal yielded 1.75 W of green light at 530.5 nm. An optical-to-optical efficiency with respect to the incident
pump power was 10.1%. 相似文献
17.
We reported the Ho:GdVO4 laser pumped by Tm-doped laser with a fiber Bragg grating. 2.03 W continuous-wave Ho:GdVO4 laser output power is obtained under 10.5 W incident pump power, with the optical-to-optical conversion efficiency and slope efficiency of 19.3% and 32.3%, respectively, at 7 °C. We can see that, the lower the temperature is, the better the laser output character is. The beam quality factor is M2 ∼ 1.29 measured by the traveling knife-edge method. 相似文献
18.
The basic performance characteristics of a Ho 3+-doped silica fibre laser that operates in a single transverse mode at ~2.1 µm and is pumped with the 1100-nm output from a free-running Yb 3+-doped silica fibre laser are presented. We measure a maximum slope efficiency (with respect to launched pump power) of 35% and we generate a maximum output power of 2.7 W at an optical-to-optical efficiency of 18% with respect to the incident pump power. The wavelength of the output is length tuned from 2090 nm to 2100 nm when the a absL product varies from 1.2 to 2.7. The use of the free-running output from a Yb 3+-doped silica fibre laser to pump the Ho 3+-doped silica fibre laser is very convenient and allows significant scaling of the output power. 相似文献
19.
We report an efficient laser emission on the 1329 nm 4
F
3/2 to 4
I
13/2 transition in Nd:CNGG under the pump with diode laser at 885 nm. Continuous wave (CW) 3.37 W output power at 1329 nm is obtained
under 17.4 W of incident pump power; the slope efficiency with respect to the incident pump power was 36.2%. Moreover, intracavity
frequency doubling with LiB3O5 (LBO) nonlinear crystal yielded 822 mW of red light at 665 nm. An optical-to-optical efficiency with respect to the incident
pump power was 4.7%. 相似文献
20.
In this paper, we report a 22.7 W continuous wave (CW) diode-pumped cryogenic Ho( at %), Tm(3 at %):GdVO4 laser. The pumping sources of Ho,Tm:GdVO4 laser are two fiber-coupled laser diodes with fiber core diameter of 0.4 mm, both of them can supply 42 W power laser operating
near 802 nm. For input pump power of 64.7 W at 802.5 nm, the output power of 22.7 W in CW operation, optical-to-optical conversion
efficiency of 35.1% at 2.05 μm has been attained. The M
2 factor was found to be 2.0 under an output power of 16.5 W. 相似文献