Author Affiliations
1Wuhan National Lab for Optoelectronics (WNLO) & National Engineering Laboratory for Next Generation Internet Access System, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China2State Key Laboratory of Advanced Optical Communication Systems and Network, Shanghai Jiao Tong University, Shanghai, 200240, China3State Key Laboratory of Optical fiber and Cable Manufacture Technology, Yangtze Optical fiber and Cable Joint Stock Limited Company (YOFC), Wuhan, 430073, Chinashow less
Fig. 1. Experimental setup of bidirectional MCF transmission system. The insets (a), (b), and (c) are the cross section view of the fabricated MCF, fan-in/fan-out, and picture of the whole fan-in/fan-out device, respectively. (OC, optical coupler; FI/FO, fan-in/fan-out; RX, receiver; Mux, multiplexer; DeMux, demultiplexer.)
Fig. 2. (Color online) Spectrum of 25 Gb/s OOK signal generated by DML1 with and without ODI, the transmission function of the ODI is also depicted. (w/o, without; w/, with; TF, transmission function.)
Fig. 3. (Color online) Frequency response of the transceivers with and without ODI. (BW, bandwidth.)
Fig. 4. Optical spectra of the WDM multiplexed 100 Gb/s OOK signals after ODI filtering.
Fig. 5. Measured eye diagrams for the OB2B case with and without ODI. (a)(d) are for without ODI, and (e)(h) are for with ODI, respectively.
Fig. 6. Measured eye diagrams of 25G OOK signals after 20 km MCF transmission. (a) in core 1 for the DS direction without ODI, (b) in core 5 for the US direction without ODI, (c) in core 1 for the DS direction with ODI, (d) in core 5 for the US direction with ODI.
Fig. 7. (Color online) BER performances of 100G OOK signals for different cores in bidirectional MCF transmission. (a)–(d) are for DS (core 1 and 2) and US (core 5 and 6), respectively. (: .)
Fig. 8. Receiver sensitivity variation among different fiber cores and wavelengths. (: .)