Maximizing output power of a low-gain laser system

1993 ◽  
Vol 32 (21) ◽  
pp. 3930 ◽  
Author(s):  
D. L. Carroll ◽  
L H. Sentman
Keyword(s):  
Output Power ◽  
Laser System

Attainment of a 40 TW peak output power with a visible-range hybrid femtosecond laser system

2019 ◽  
Vol 49 (10) ◽  
pp. 901-904 ◽  
Author(s):  
S V Alekseev ◽  
N G Ivanov ◽  
V F Losev ◽  
G A Mesyats ◽  
L D Mikheev ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Output Power ◽  
Laser System ◽  
Visible Range ◽  
Peak Output Power

A Comparative Study of Determination the Spectral Characteristics of Serum Total Protein Among Laser System and Spectrophotometric: Advantage and Limitation of Suggested Methods

2019 ◽  
Vol 15 (5) ◽  
pp. 583-590 ◽  
Author(s):  
AL-Timimi Zahra
Keyword(s):  
Diode Laser ◽  
Output Power ◽  
Total Protein ◽  
Laser System ◽  
Maximum Output Power ◽  
Maximum Output ◽  
Serum Total Protein ◽  
Variable Resistance ◽  
Relative Standard ◽  
Double Beam

Background and Objective: Laser spectroscopy is becoming an increasingly paramount analytical tool. Scientists today have at their disposal many various types of laser-based analytical techniques. In this article, the possibility of using capabilities of a laser to analyze and find the concentration of Serum Total Protein (STP) was studied. Materials and Methods: The laser system includes a diode laser with 532 nm wavelength, with maximum output power being 5 mW. Laser bandwidth ranges around (524 nm – 546 nm) experimentally justified using a monochromator. A simple variable resistance with a range from zero to10Ω for obtaining a range of laser output power, detector, parallel variable resistance with the range from zero to 5 kΩ and meter for measuring the percentage of transmittance. The absorption spectroscopy of STP samples was measured by double beam spectrophotometer. Results: Maximum absorbance of STP is at the range (520-580 nm) and the peak at (500) nm. Laser system measurements included the study of absorbance of STP as a function of cuvet thickness, transmittance as a function of cuvet thickness and absorbance as a function of laser power. In order to ascertain our calculations, the results have been compared with the results of the spectrophotometer. The Relative Standard Deviation (RSD%) values are about (0.67-17.18). Conclusion: The diode laser system is a highly efficient and easy system and allows access to a range of powers. Since the divergence of the laser beam is very low. All results are in good agreement with conventional double beam spectrophotometer.

All fibre laser system with 0.1 W output power in blue spectral range

1997 ◽  
Vol 33 (16) ◽  
pp. 1383 ◽  
Author(s):  
H. Zellmer ◽  
S. Buteau ◽  
A. Tünnermann ◽  
H. Welling
Keyword(s):  
Output Power ◽  
Spectral Range ◽  
Laser System ◽  
Fibre Laser

The possibilities of the output power increasing of the THL-100 laser system

2018 ◽  
Author(s):  
V.F. Losev ◽  
S.V. Alekseev ◽  
N.G. Ivanov ◽  
M.V. Ivanov ◽  
G.A. Mesyats ◽  
...  
Keyword(s):  
Output Power ◽  
Laser System

Theoretical design of a Yb3+: KGd(WO4)2 laser system with 30 W output power

2016 ◽  
Vol 45 (11) ◽  
pp. 1105003
Author(s):  
高 明 Gao Ming ◽  
王 浟 Wang You ◽  
蒋志刚 Jiang Zhigang ◽  
王宏元 Wang Hongyuan ◽  
安国斐 An Guofei ◽  
...  
Keyword(s):  
Output Power ◽  
Laser System ◽  
Theoretical Design

scholarly journals kW-class high power fiber laser enabled by active long tapered fiber

2018 ◽  
Vol 6 ◽  
Author(s):  
Chen Shi ◽  
Hanwei Zhang ◽  
Xiaolin Wang ◽  
Pu Zhou ◽  
Xiaojun Xu
Keyword(s):  
Fiber Laser ◽  
Output Power ◽  
Continuous Wave ◽  
Beam Quality ◽  
Laser System ◽  
Maximum Output Power ◽  
Nonlinear Effects ◽  
Fiber Amplifier ◽  
Maximum Output ◽  
Tapered Fiber

Compared with traditional uniform fibers, tapered fiber has numerous unique advantages, such as larger mode area, higher pump absorption, suppression to nonlinear effects, and maintaining good beam quality. In this manuscript, we have constructed an all-fiberized fiber amplifier which is based on a piece of ytterbium-doped tapered double-clad fiber (T-DCF). The fiber amplifier is operated under continuous wave (CW) regime at 1080 nm wavelength. The $M^{2}$ factor of the amplifier at 1.39 kW output power is ${\sim}1.8$. The maximum output power of the system reached 1.47 kW, which, to the best of our knowledge, is the highest output power of long tapered fiber based fiber laser system. Our result successfully verifies the potential of power scalability and all-fiberized capability of long tapered fiber, and the performance of our system can be further enhanced by fiber design optimization.

scholarly journals Numerical Investigation into Optoelectronic Performance of InGaN Blue Laser in Polar, Non-Polar and Semipolar Crystal Orientation

Crystals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1033
Author(s):  
Sourav Roy ◽  
Sharadindu Gopal Kiratnia ◽  
Priyo Nath Roy ◽  
Md. Mahmudul Hasan ◽  
Ashraful Hossain Howlader ◽  
...  
Keyword(s):  
Frequency Response ◽  
Numerical Investigation ◽  
Output Power ◽  
Crystal Orientation ◽  
Laser System ◽  
Optical Gain ◽  
High Energy ◽  
Blue Laser ◽  
Field Energy ◽  
Plane Orientation

Recently, InGaN grown on semipolar and non-polar orientation has caused special attraction due to reduction in the built-in polarization field and increased confinement of high energy states compared to traditional polar c-plane orientation. However, any widespread-accepted report on output power and frequency response of the InGaN blue laser in non-c-plane orientation is readily unavailable. This work strives to address an exhaustive numerical investigation into the optoelectronic performance and frequency response of In0.17Ga0.83N/GaN quantum well laser in polar (0001), non-polar (101¯0) and semipolar (101¯2), (112¯2) and (101¯1) orientations by working out a 6 × 6 k.p Hamiltonian at the Γ-point using the tensor rotation technique. It is noticed that there is a considerable dependency of the piezoelectric field, energy band gap, peak optical gain, differential gain and output power on the modification in crystal orientation. Topmost optical gain of 4367 cm−1 is evaluated in the semipolar (112¯2)-oriented laser system at an emission wavelength of 448 nm when the injection carrier density is 3.7 × 1018 cm−3. Highest lasing power and lowest threshold current are reported to be 4.08 mW and 1.45 mA in semipolar (112¯2) crystal orientation. A state-space model is formed in order to achieve the frequency response which indicates the highest magnitude (dB) response in semipolar (112¯2) crystal orientation.

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