Maximum number of connectable laser diode optical switch (LDSW) systems |
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| Authors: | Masahiro Ikeda |
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| Affiliation: | (1) NTT Opto-electronics Laboratories, 3-1, Morinosato Wakamiya, Atsugi-shi, 243-01 Kanagawa Prefecture, Japan |
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| Abstract: | The maximum number of connectable laser diode optical switches (LDSWs) was studied through the baseband signal-to-noise ratio calculation. For an NRZ 100 Mbits–1 PCM-IM signal, 60 stages of LDSWs can be connected with a 6-nm optical bandpass filter inserted after the last stage at an input signal level of –30 dB m and an internal gain of 16 dB. A PCM-IM signal of 10 Gbits–1 can be transmitted through 130 stages of LDSWs at an internal gain of 8 dB and an input signal level of –20 dB m. |
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