In this Letter, we experimentally demonstrate a full-duplex transmission system of IEEE 802.11ac-compliant multiple-input multiple-output （MIMO） signals over a 2-kin 7-core fiber for in-building wireless local-area ...
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In this Letter, we experimentally demonstrate a full-duplex transmission system of IEEE 802.11ac-compliant multiple-input multiple-output （MIMO） signals over a 2-kin 7-core fiber for in-building wireless local-area net- work （WLAN） distributed antenna systems. For full-duplex 3 x 3 MIMO demonstration, the crosstalk impacts of both fiber-transmission-only and optic-wireless transmission situation are evaluated. The results indicate that the impact of crosstalk on radio-over-fiber （ROF） link performance is not significant and the quality of the cascaded multi-core fiber and wireless channel is mainly determined by the wireless part. To further improve the system capacity, polarization multiplexing （PolMux） technology is employed to achieve a full-duplex 6 × 6 MIMO over a single 7-core fiber. Although employing the PolMux method will slightly decrease the EVM and condition number performance as opposed to a non-PolMux MCF system, it is still a competitive solution in large optical connection demand scenarios that require a low cost.
A novel compact optoelectronic oscillator（OEO） employing a Fabry-Perot（FP） resonant electro-optic（EO）modulator is proposed and experimentally *** resonant modulator is used as the optical storage element as well...
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A novel compact optoelectronic oscillator（OEO） employing a Fabry-Perot（FP） resonant electro-optic（EO）modulator is proposed and experimentally *** resonant modulator is used as the optical storage element as well as the mode selection element,which can greatly reduce the system complexity and make the system more ***,the optical resonance and electrical transmission response for the FP resonant EO modulator are theoretically and experimentally *** proposed OEO oscillates at 10 and 20 GHz in the proof-of-concept experiment,and the corresponding single-sideband phase noise can reach below-118 and-108 dBc/Hz at 1 MHz offset frequency,respectively.
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