| 1. | Testing method of divergence angle of laser radiation
激光辐射发散角测试方法 |
| 2. | Therefore , to measure exactly the far - field divergence angle of laser beams is highly important
因此,对发散角测量的研究成为当今半导体激光技术发展的一个重要课题。 |
| 3. | Lasers and laser - related equipment - test methods for laser beam widths , divergence angles and beam propagation ratios - general astigmatic beams
激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.一般象散束 |
| 4. | Lasers and laser - related equipment - test methods for laser beam widths , divergence angle and beam propagation ratios - part 2 : general astigmatic beams
激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.第2部分:一般像散束 |
| 5. | Lasers and laser - related equipment - test methods for laser beam widths , divergence angles and beam propagation ratios - stigmatic and simple astigmatic beams
激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.无象散和简单象散束 |
| 6. | Lasers and laser - related equipment - test methods for laser beam widths , divergence angle and beam propagation ratios - part 1 : stigmatic and simple astigmatic beams
激光和激光相关设备.激光束宽度发散角和束扩散率的试验方法.第1部分:无象散和简单象散束 |
| 7. | The parameters that influence the single photon acquisition probability are the transmitter ' s tracking - pointing error , the far - field divergence angle , the link distance between transmitter and receiver and the receiver ' s antenna aperture
得到影响单光子捕获概率的主要参量是发射机的跟瞄误差、光束远场发散角、发射机和接收机的链路距离和接收机天线孔径。 |
| 8. | The propagation of ultrashort laser pulse in air is analyzed with mechanics analogy by considering kerr effects and free electron defocusing . the equation describing the evolution of the laser spot is derived . it is shown that long distance focusing requires large initial beam and the propagation distance is very sensitive to the initial divergence angle of the laser beam
考虑多光子电离效应和光学kerr效应，首次利用力学类比的方法研究了超短脉冲激光在电离气体中的传输，详细分析了传输距离与激光初始光斑、初始发散角以及激光功率的关系，提出了实现长距离传输的条件。 |
| 9. | As the extensive application of the semiconductor laser diode ( ld ) , it become more and more important to evaluate the quantity of laser beam . far - field divergence angle of laser beams is an important parameter about value of laser quality . not only the laser divergence peculiarity in the distance is reflected , but also quality of the correlative laser apparatus and the laser transmission is exactly known
随着半导体激光器日益广泛的应用,对激光光束质量的评价越来越重要,而激光光束远场发散角是评价激光质量的一个重要参数,它不但能反映远距离传输时的激光发散特性,而且能准确评估出半导体激光器的品质及激光的传输质量。 |
| 10. | Vertical - cavity surface - emitting lasers ( vcsel ' s ) have distinct advantages over conventional edge emitting lasers , such as small divergence angle , single longitudinal mode operation and very low threshold current . they are especially suitable for making two - dimensional ( 2 - d ) arrays as well as vcsel ' s based integrate devices
垂直腔面发射半导体激光器( vcsel )与传统的边发射半导体激光器相比，它具有发散角小、单纵模工作、非常低的阈值电流等优点，尤其它适于二维面阵集成和与其它光电子器件集成。 |
