Hyperfine spectrum; Nonlinear optics; Degenerate four waves mixing; The equivalent grating; Isotope detecting.
超精细光谱；非线性光学；简并四波混频技术；等效光栅；同位素检测。
A grating spectrum detecting system was designed to detect the formaldehyde concentration effectively and quickly.
为了对甲醛的浓度进行快速而有效的检测，设计了一套光栅式光谱检测系统。
The method of detecting wavelength shift using PZT-strain gauge compounding highly linear fiber grating is also presented.
提出并实现了一种用PZT—应变片组合型高线性度光纤光栅探测反射波长移位的方法。
This opens a new way to improving phase-detecting resolution for grating measurement.
这为光栅测量提高检相分辨率，展示了新的途径。
This opens a new way to improving phase-detecting resolution for grating measurement.
这为光栅测量提高检相分辨率，展示了新的途径。
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