Broad tuning terahertz wave generator based on Doppler frequency modulator cyclic frequency shift
A Doppler frequency and wave generator technology, which is applied in the field of broadband tuning terahertz wave generators, can solve the problems of narrow tuning width, low conversion efficiency, low tuning efficiency, etc., and achieves large tuning range, high tuning efficiency and volume. small effect
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0029] The present invention provides a wide-tunable terahertz wave generator based on cyclic frequency shifting of a Doppler frequency modulator, such as figure 1 As shown, it includes a laser 1, a circulator 2, a beam splitter 3, a cyclic frequency shifting link 4 based on a Doppler frequency modulator frequency shifting, a beam combiner 5, an optical isolator 6 and an optoelectronic converter7. The light output by the laser 1 passes through the circulator 2 and is divided into the first path and the second path by the beam splitter 3. The first path is the reference light, and the second path i...
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