Nanosecond time - resolved spectroscopy 毫微秒时间皆辨率光学
Generation of multi - wavelength signals and ultra - short pulses are of great importance for a wide range of applications such as in wavelength - division - multiplexed ( wdm ) and optical time - division - multiplexed ( otdm ) fiber communication systems , fiber sensing , nonlinear optics , optical instrument testing , and time - resolved spectroscopy 密集波分复用( dwdm )和光时分复用( otdm )是实现光纤通信系统升级扩容的有效途径,而多波长信号及高重复频率的超短光脉冲的产生则是与其相对应的两种关键技术。
In physics and physical chemistry, time-resolved spectroscopy is the study of dynamic processes in materials or chemical compounds by means of spectroscopic techniques. Most often, processes are studied after the illumination of a material occurs, but in principle, the technique can be applied to any process that leads to a change in properties of a material.