TY - JOUR
T1 - 10-Gb/s external modulation in optical CPFSK format
AU - Sakamoto, Takahide
AU - Kawanishi, Tetsuya
AU - Miyazaki, Tetsuya
AU - Izutsu, Masayuki
N1 - Funding Information:
Manuscript received September 6, 2005; revised January 14, 2006. This work was supported in part by the Industrial Technology Research Grant Program in 2004 from the New Energy and Industrial Technology Development Organization (NEDO) of Japan, and in part by the Ministry of Education, Culture, Sports, Science and Technology, under a Grant-in-Aid for Scientific Research (B).
PY - 2006/4/15
Y1 - 2006/4/15
N2 - We demonstrated a synchronous control technique for external optical modulation in a format of continuous-phase frequency-shift keying (CPFSK) at 10 Gb/s. In this method, the FSK signal in the upper- or lower-sideband state synchronously shifts to the other state at the timing when their phases are the same. We investigated the accuracy of the timing control required for the synchronous control. Experimental results show that the allowable timing misalignment to keep power penalty of the receiver sensitivity less than 1 dB was more than 25 ps, 25% of each bit period.
AB - We demonstrated a synchronous control technique for external optical modulation in a format of continuous-phase frequency-shift keying (CPFSK) at 10 Gb/s. In this method, the FSK signal in the upper- or lower-sideband state synchronously shifts to the other state at the timing when their phases are the same. We investigated the accuracy of the timing control required for the synchronous control. Experimental results show that the allowable timing misalignment to keep power penalty of the receiver sensitivity less than 1 dB was more than 25 ps, 25% of each bit period.
KW - Continous-phase modulation
KW - Demodulation
KW - Electrooptic modulation
KW - Frequency modulation
KW - Optical fiber communication
KW - Optical modulation
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U2 - 10.1109/LPT.2006.873561
DO - 10.1109/LPT.2006.873561
M3 - Article
AN - SCOPUS:33645835185
SN - 1041-1135
VL - 18
SP - 968
EP - 970
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 8
ER -