Ultraviolet single-frequency pulses with 110 mW average power using frequency-converted passively Q-switched miniature Nd:YAG ring lasers

1998 ◽  
Vol 73 (6) ◽  
pp. 714-716 ◽  
Author(s):  
M. Bode ◽  
S. Spiekermann ◽  
C. Fallnich ◽  
H. Welling ◽  
I. Freitag
Keyword(s):  
Average Power ◽  
Single Frequency ◽  
Ring Lasers

Dynamics of a three-parameter electromagnetic vibration energy harvester considering electromechanical coupling

2019 ◽  
Vol 234 (7) ◽  
pp. 1323-1339
Author(s):  
Haiping Liu ◽  
Dongmei Zhu
Keyword(s):  
Energy Harvester ◽  
Mechanical Vibration ◽  
Average Power ◽  
Electrical Circuit ◽  
Single Frequency ◽  
Vibration Energy ◽  
Electrical Load ◽  
Vibration Energy Harvester ◽  
Analytical Expressions ◽  
Frequency Harmonic

The paper concerns the dynamic responses and vibration energy harvesting characteristics in an electromagnetic vibration energy harvester comprising three-parameter mechanical vibration subsystem. For completeness and comparison, a two-parameter vibration energy harvester is also presented. The analytical expressions of the amplitude-frequency and phase-frequency responses of the inertial mass and the current in the electrical circuit are respectively derived by applying dimensionless method to the studied two- and three-parameter dynamic systems. Considering the effects of different types of ambient excitation, a single-frequency harmonic load and a periodic load are introduced into the analytical expressions on the dynamic performance of the vibration energy harvester. First of all, the influences of the designing parameters from the mechanical vibration subsystem and the electrical circuit subsystem on the vibration energy harvester are investigated. For evaluating the effects due to introducing the three-parameter mechanical vibration component, comparisons are made between two- and three-parameter vibration energy harvesters to convert the ambient excitations into electrical energy. And then, the expressions of the dimensionless average power which delivered into an electrical load under a single-frequency harmonic excitation or a periodic excitation are derived. The calculating results show that the energy conversion efficiency is enhanced significantly by changing the mechanical damping efficiency and the stiffness ratio for the three-parameter mechanical component of the energy harvester. At the same time, the average power of the three-parameter vibration energy harvester, which delivered into the electrical load, is also improved. However, the influences of the electrical circuit component on the ambient energy harvesting can be omitted when keeping the designing parameters of the mechanical part constant.

Miniature Nd:YAG Ring Lasers with High Single-Frequency Output Power at 946nm

1996 ◽  
Author(s):  
I. Freitag ◽  
R. Henking ◽  
F. von Alvensleben ◽  
A. Tünnermann
Keyword(s):  
Output Power ◽  
Single Frequency ◽  
Ring Lasers ◽  
Frequency Output

High-average power optical demodulation of a fiber amplified phase modulated single-frequency signal

2011 ◽  
Author(s):  
S. Rhein ◽  
O. Schmidt ◽  
H. Zimer ◽  
T. Schreiber ◽  
R. Eberhardt ◽  
...  
Keyword(s):  
Average Power ◽  
Single Frequency ◽  
High Average Power ◽  
Frequency Signal

scholarly journals Kilowatt high average power narrow-linewidth nanosecond all-fiber laser

2014 ◽  
Vol 2 ◽  
Author(s):  
Rongtao Su ◽  
Pu Zhou ◽  
Xiaolin Wang ◽  
Rumao Tao ◽  
Xiaojun Xu
Keyword(s):  
Fiber Laser ◽  
Continuous Wave ◽  
Stimulated Raman Scattering ◽  
Average Power ◽  
High Repetition Rate ◽  
Single Frequency ◽  
Power Scaling ◽  
Narrow Linewidth ◽  
Main Amplifier ◽  
Multi Stage

AbstractA high power narrow-linewidth nanosecond all-fiber laser based on the master oscillator power amplifier (MOPA) configuration is demonstrated. A pulsed seed with high repetition rate of 10 MHz was generated by modulating a continuous-wave (CW) single-frequency fiber laser at $\sim $1064 nm by using an electro-optic intensity modulator (EOIM). After multi-stage cascaded power amplification, the average power was boosted to be kilowatt level. The pulses from the main amplifier had a pulse width of $\sim $3 ns and an average/peak power of 913 W/28.6 kW. Further power scaling of the pulses was limited by stimulated Raman scattering (SRS) for the moment, method for SRS suppression and further power scaling was briefly discussed.

Single-frequency Nd:YAG ring lasers with corner cube prism

2000 ◽  
Author(s):  
Ke Ying Wu ◽  
Su Hui Yang ◽  
Chang Ming Zhao ◽  
Guang Hui Wei
Keyword(s):  
Single Frequency ◽  
Corner Cube ◽  
Ring Lasers ◽  
Corner Cube Prism
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