利用数值模拟的方法研究了电流调制下偏置电流和调制频率对垂直腔面发射半导体激光器(VCSEL)混沌动力学特性的影响。

The influence of bias current and modulation frequency on chaos dynamics of vertical-cavity surface-emitting laser (VCSEL) subject to direct current modulation is investigated by numerical simulation.

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使用MAX038波形发生芯片产生波形，通过修改MAX038相应引脚的参数方便地实现输出波形的频率和占空比及偏置电压参数的调节。

The waveform is generated by MAX038. It is very convenient to adjust the frequency, duty cycle and offset voltage of the waveform by changing parameters of the corresponding pins of the chip.

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提出了次镜支撑的偏置十字型中心结构，该结构具有较高的谐振频率，因此可以用于大口径望远镜中。

An offset cross structure for supporting secondary mirror is proposed. The structure has a higher resonance frequency so it can be applied to large-aperture telescope.

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