Browsing by Keywords "High power"
Now showing items 1-8 of 8
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808 nm broad-area laser diodes designed for high efficiency at high-temperature operation
(Institute of Physics Publishing Ltd., 2021-09-21)Semiconductor lasers with high power conversion efficiency (PCE) and output power are heavily investigated driven by more energy-efficient commercial applications. In this paper, an asymmetric broad area laser (A-BAL) ... -
The design of a wideband and widebeam piston transducer in a finite closed circular baffle
(2008-06-07)The design of a high power piezoelectric underwater transducer operating at frequency range 40 kHz-80 kHz with acoustic power capability in excess of 250W is described. The transducer consists of two back-toback elements. ... -
High efficiency 1.9 Kw single diode laser bar epitaxially stacked with a tunnel junction
(IEEE, 2021-04-21)We report on the development of a 940-nm diode laser bar based on epitaxially stacked active regions by employing a tunnel junction structure. The tunnel junction and the device parameters were systematically optimized to ... -
High-power operation and lateral divergence angle reduction of broad-area laser diodes at 976 nm
(Elsevier, 2021-04-28)Broad-area diode lasers with high output power and low lateral divergence angle are highly desired for extensive scientific and industrial applications. Here, we report on the epitaxial design for higher output power and ... -
Nonlinearity engineering of mode-locked fiber lasers: Similariton and soliton-similariton lasers
(IEEE, 2011)Fiber lasers are attractive with their simplicity, high powers and low cost. However, propagation of short pulses in optical fiber leads to nonlinear effects, which limit the technical performance. These effects drive rich ... -
Power saturation in standard and double-AR unfolded laser diode cavities
(IEEE, 2016)We report modeling and experimental results that demonstrate mechanisms limiting the output power of broad area semiconductor lasers. The modeling comprises numerical simulations of the laser cavity with evolution of ... -
Prediction of pulse-to-pulse intensity fluctuation characteristics of high power ultrafast fiber amplifiers
(American Institute of Physics Inc., 2014)We report on the experimental characterization and theoretical prediction of pulse-to-pulse intensity fluctuations, namely, intensity noise, for ultrafast fiber amplifiers. We present a theoretical model with which the ... -
X-band high power GaN SPDT MMIC RF switches
(IEEE, 2019)This paper describes the design results and measured performance of three different high power, low loss and high isolation GaN high electron mobility transistor (HEMT) based single-pole double-throw (SPDT) RF switches. ...
