CAJ | 학술논문

提出了一种基于光纤光参量放大器(FOPA)的多通道全光非归零码(NRZ)/归零码(RZ)调制格式转换的方案.该方案中,非归零码信号与同步的时钟抽运光共同注入到高非线性光纤(HNLF)中,由高非线性光纤构成的参量放大器把非归零码信号转换为归零码信号,同时不改变信号光的波长.多通道的码型转换器以两路10 Gb/s的非归零码进行了实验论证.转换后的归零码信号的信噪比(SNR)高于7.6 dB,其脉冲宽度约为30 ps,并且具有3dB的消光比(ER)提高.根据多通道码型转换器的实现原理,该码型转换器可以应用于40 Gb/s或更高比特率的多通道码型变换操作.
제출료일충기우광섬광삼량방대기(FOPA)적다통도전광비귀령마(NRZ)/귀령마(RZ)조제격식전환적방안.해방안중,비귀령마신호여동보적시종추운광공동주입도고비선성광섬(HNLF)중,유고비선성광섬구성적삼량방대기파비귀령마신호전환위귀령마신호,동시불개변신호광적파장.다통도적마형전환기이량로10 Gb/s적비귀령마진행료실험론증.전환후적귀령마신호적신조비(SNR)고우7.6 dB,기맥충관도약위30 ps,병차구유3dB적소광비(ER)제고.근거다통도마형전환기적실현원리,해마형전환기가이응용우40 Gb/s혹경고비특솔적다통도마형변환조작.
A multi-channel all-optical modulation format converter from non-return.to-zero(NRZ)to return-to-zero (RZ)is reported based on the fiber optical parametric amplifier(FOPA).In this scheme,the NRZ data together with a synchronized pump clock are injected into the highly non-linear fiber(HNLF).The FOPA consisting of HNLF converts the NRZ signal to RZ signal,and the wavelength of the signal is preserved.The multi-channel operation at 10 Gb/s is demonstrated experimentally.The sigal to noise ratio (SNR) of the converted RZ signals is no less than 7.6 dB with 3 dB enhancement of extinction ratio(ER).The pulse-width of the obtained RZ signal iS around 30 ps.According to the operating principle of the multi-channel code converter,the converter is considered to be proper for the multi-channel operation at 40 Gb/s or even higher bit-rates.