The characteristic matrix is very important to the design and analysis of optical path system with AOTF.

该特性矩阵对分析、设计各种有关声光可调谐滤光器光路系统具有重要的意义。

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High-speed rotary Fourier transform spectrometer has nonlinearity of optical path differences (OPD) because of refractor's rotating.

转镜式傅里叶光谱仪中，转镜的转动形成光程差的非线性。

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The nonlinear problem of optical path difference (OPD) of rotating Fourier transform spectrometer universally exists, produced by the rotation of rotating mirror.

转镜的转动会导致光程差存在非线性问题，是转镜式干涉光谱仪普遍存在的问题。

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WDM, a technique that allows a single optical path to carry thousands of parallel channels, as long as each is encoded in a slightly different colour.

ECONOMIST: Optical communications

Dr Lin is already testing a waveguide designed to steer light with a wavelength of 1.5 microns, and he is also working on three-dimensional waveguides made of silicon, which will provide almost total control over the path the light takes, and make really complex optical circuits possible.

ECONOMIST: New-age crystals