Receiving system in wireless optical communication and signal receiving method thereof
A wireless optical communication and receiving system technology, applied in the field of optical communication, can solve problems such as increased bandwidth, center wavelength drift of optical filters, signal fading, etc., to reduce processing technology requirements, increase or reduce array scale, and improve system The effect of integration
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[0087] The wireless optical communication receiving system structure based on array receiving and coherent combination provides a highly sensitive and highly integrated receiving scheme for wireless optical communication. Its principle structure is as figure 2 Shown, including:
[0088] A focusing lens array that couples the spatial optical signal into the optical waveguide array or optical fiber array.
[0089] An optical waveguide array or optical fiber array serves as a transmission path for the received optical signal. The output end of the optical waveguide array or the optical fiber array is connected to a group of optical signal delayers 21. The optical signal delayer can be a commercial optical fiber adjustable true delayer, or a true delay module based on the slow light effect, which is used to adjust the signal delay of each optical signal so that the optical signal The telecom numbers are basically aligned. The output end of each optical signal delayer 21 is connecte...
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