Optical crystal electric field sensor based on dfb laser
A DFB laser, electric field sensor technology, applied in the sensor field, can solve the problems of inability to realize high-frequency signal detection, weak light source coupling power, etc., and achieve the effects of improving measurement accuracy and stability, reducing manufacturing difficulty, and reducing polarization mode noise.
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[0021] 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.
[0022] figure 1 An embodiment of the optical crystal electric field sensor based on the DFB laser of the present invention is shown: a kind of optical crystal electric field sensor based on the DFB laser includes sequentially according to the order of light output and input
[0023] - DFB laser 2: DFB laser is used as a light source, which is equipped with automatic power control and automatic temperature control circuit 1, has two directions of polarization perpendicular to each other, and the difference in polarization degree between the two polarization directions is more than 20dB;
[0024] -1...
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