Kim, DH Kim, SH Jo, JC Choi, SS 2024-01-21T13:38:08Z 2024-01-21T13:38:08Z 2021-09-05 2000-08-15 0030-4018 https://pubs.kist.re.kr/handle/201004/141165 A new phase lock loop (PLL) is proposed and demonstrated for clock recovery from 40 Gbps time-division-multiplexed (TDM) optical signal using simple optical phase lock loop circuit. The proposed clock recovery scheme improves the jitter effect in PLL circuit from the clock pulse laser of harmonically-mode locked fiber laser. The cross-correlation component between the optical signal and an optical clock pulse train is detected as a four-wave-mixing (FWM) signal generated in SOA. The lock-in frequency range of the clock recovery is found to be within 10 KHz. (C) 2000 Elsevier Science B.V. All rights reserved. English ELSEVIER SCIENCE BV LASER-DIODE AMPLIFIER SIGNAL Ultrahigh-speed clock recovery with optical phase lock loop based on four-wave-mixing in a semiconductor optical amplifier Article 10.1016/S0030-4018(00)00837-3 1 OPTICS COMMUNICATIONS, v.182, no.4-6, pp.329 - 334 OPTICS COMMUNICATIONS 182 4-6 329 334 scie scopus 000088891500008 2-s2.0-0034249729 Optics Optics Article LASER-DIODE AMPLIFIER SIGNAL optical time-division multiplexing optical phase lock loop clock extraction semiconductor optical amplifier