ID 原文 译文
52377 实验测试和仿真结果均表明，使用这种微带线结构可以使串扰在0～60 GHz频率范围内小于-30 dB，能够满足高频信号对400 Gbit/s光器件性能的要求。 Based on the analysis of the electric field distribution by using High Frequency Simulation Software (HFSS) to build and analyze 3 D electromagnetic model, the simulation result shows that the crosstalk of the device with this new microstrip structure is less than-30 dB within the frequency range of 0～ 60 GHz, which meets the requirement of 400 Gbit/s optical device.
52378 为了提高采用有限元分析平面光波导热应力的精度和效率，提出了一种改进平面应变模型。 In order to improve the accuracy and efficiency of the thermal stress analysis of the planar optical waveguide by the finite element method, an improved plane strain model is presented.
52379 通过将材料的热膨胀系数正交各向异性化，材料垂直于波导传播方向的热膨胀系数为真实的热膨胀系数， In this improved plane strain model, the thermal expansion coefficient of materials is described in orthogonal anisotropic way, and the material's thermal expansion coefficient in the direction perpendicular to the propagation of the waveguide remains the actual material's thermal expansion coefficient.
52380 但沿波导传播方向的热膨胀系数经过适当的变换可满足变形协调和适应平面应变模型， However, the thermal expansion coefficient of material along the direction of propagation of the waveguide is changed appropriately to maintain deformation coordination.
52381 采用改进的平面应变模型，计算了平面光波导的热应力。 With the modified material model, the thermal stress of the planar optical waveguide is calculated by the ordinary plane strain model.
52382 计算结果表明，与广义平面应变模型相比，用改进的平面应变模型得到的应力的最大误差只有0.4%，而计算时间缩短为广义平面应变模型的12.6%， The calculation results show that the maximum error of the stress obtained by the improved plane strain model is only 0. 4% compared with the generalized plane strain model, and the calculation time is reduced to 12. 6% of the generalized plane strain model.
52383 与平面应变模型相比，改进平面应变模型的计算时间相等，而计算精度大幅提高。 Compared with the ordinary plane strain model, the calculation precision of the improved plane strain model is greatly improved with almost same calculation time.
52384 设计了一种基于四阶脉冲幅度调制 (PAM4) 技术的50 Gbit/s 40 km QSFP28封装的长距离光传输模块，以应对现代社会对通信传输的带宽、速率和容量等要求的不断增长。 In view of the growing requirements of bandwidth, transmission speed and capacity, a kind of 50 Gbit/s PAM4 QSFP28 optical transceiver module is proposed, which can meet the demands of 40 km transmission.
52385 使用了PAM4技术以提高单波长的数据传输容量，使得单波传输速率达到50 Gbit/s; The PAM4 technology is used to increase the transmission capacity in each single wavelength.
52386 在模块的接收单元使用雪崩光电二极管 (APD) 作为光探测器，使得模块对小光信号的接收能力得到提高;测试结果表明，模块的性能较为稳定，优化了APD部分电路设计，以获得更佳的传输效果，能够满足50 GE 40 km传输。 At the receiver side, the key component of the photo-detector is APD, which can increase the ability of identifying weak signal, and meet the requirement of 40 km transmission in 50 GE. The circuit of reception unit is optimized to obtain a better transmission effect. The result indicates that the transceiver can work steadily, meet the demands of 40 km transmission in 50 GE.