Ultra-long-distance double-fiber interconnected multistage optical fiber time frequency transmission system
A technology of time-frequency transmission and time-frequency, which is applied in the direction of optical fiber transmission, etc., can solve problems such as system signal interruption, poor system reliability, and waste of optical fiber resources, and achieve good stability, high system reliability, and high output accuracy.
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[0033] The features and advantages of the present invention will become clearer and clearer along with these exemplary descriptions through the detailed description of the present invention below.
[0034] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
[0035] On the one hand, the present invention provides a multi-level optical fiber time-frequency transmission system for ultra-long-distance dual-fiber interconnection, such as figure 1 shown, with one or more transfer units,
[0036] The transmission unit includes multiple optical fiber single-channel time-frequency high-precision transmission devices, multiple time-frequency signal synthesis de...
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