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利用５０５０耦合器以２×２级联的形式研制成功２×２．５Ｇｂ／ｓ、４×２．５Ｇｂ／ｓ和８×２．５Ｇｂ／ｓ光时分复用信号产生系统。用增益开关量子阱ＤＦＢ激光器产生的宽度为１９ｐｓ、周期为４００ｐｓ的光脉冲作为源信号脉冲所进行的实验表明，在精确控制光程差的基础上用级联形式制作的时分复用信号产生系统产生的信号完全可以满足基础应用研究要求
Successfully developed 2 × 2.5Gb / s, 4 × 2.5Gb / s and 8 × 2.5Gb / s optical time-division multiplexed signal generation systems in the form of 2 × 2 cascades using a 5050 coupler. Experiments with a pulse width of 19ps and a period of 400ps generated by a gain switching quantum well DFB laser as a source signal pulse show that a time division multiplexed signal generation system The generated signal can fully meet the basic application research requirements