Rong Wang

Abstract: We report on 980-nm InGaAs/GaAs lasers with dual-lobed far field based on a single-sided Bragg reflection waveguide (BRW). The high slope efficiency ∼0.92 W/A and a continuous wave (CW) output power >1.5 W (3.2 W pulsed) have been obtained. The threshold current density is as low as 253 A/cm2 for a 1.5-mm-long device and the transparency current density is only 140 A/cm2. The further analysis shows the intrinsic reason for the single-lobed or the dual-lobed far-field distribution is determined by the mode shape in the cavity, not the single-sided or dual-sided BRW structure. The condition to achieve a narrow single-lobed far-field distribution is discussed.

TL;DR: In this paper, a forced ship model rolling experiment device is presented, which comprises a fixing device, a control and drive device, and a data acquisition device, which is used for experimental study of ship rolling hydraulic performance.

TL;DR: Wang et al. as mentioned in this paper proposed that the livestock sector in China may achieve "climate neutrality" with net-zero warming around 2050 by implementing healthy diet and mitigation strategies to control enteric methane emissions.

TL;DR: In this paper, in-situ scanning electron microscopy (SEM) observation was conducted during 760°C tensile deformation of a GTD222 superalloy.