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power penalty
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  功率代价
     At 2081km,power penalty is about 3dBm(condition: RZ signal,BER=10~-12,PRBS=10~23-1);
     在2081km处,功率代价~3dBm(RZ码,BER=10-12,PRBS=1023-1);
短句来源
     The measurement results show that 10 -11 of bit error rate can be achieved and the power penalty is only 1.4dB when BER is 10 -9 .
     测量结果表明误码率可达到10- 11, 误码率为10- 9时的功率代价仅为14dB。
短句来源
     The transmission experiment at 10Gb/s indicates a power penalty less than 1dB at a bit-error-rate of 10 -12 after transmission through 35km single mode fiber.
     在10Gb/s 调制速率下经过35km单模光纤传输后,误码率为10-12时的功率代价小于1dB.
短句来源
     In this 10 Gbit/s WDM transmission experiments, the system power penalty was 0.16 dB and 086 dB, while the subcarrier modulation degree was 3% and 15% respectively.
     实验测得在副载波调制度为 3 %和 15 %时 ,10Gbit s波分复用 (WDM)光传输系统的功率代价分别为 0 16dB和 0 86dB。
短句来源
     10 Gb/s NRZ coded signals with low power penalty of<2 dB can be obtained through 600 km G652 transmission.
     经600kmG652光纤传输后,10Gb/s的NRZ码传输功率代价小于2dB。
短句来源
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  功率恶化
     We give the analytical power penalty expressions for t he OXC architectures based on delivery-and-coupling-type switch (DC-switch) ,taking both coherent and incoherent crosstalk into account.
     本文针对基于分送耦合开关的 OXC结构 ,分析了相干和非相干串扰引入的光功率恶化并进行了仿真计算。
短句来源
     On the other hand,the power penalty will depends less on the number of input fiber N compared with the multiplexing wavelength number M for the ideal performance of switch.
     串扰引起的光功率恶化主要取决于复用波数 M,而与输入光纤数 N关系不大 .
短句来源
     Through the performance analysis of DWDM ring with Optical Add-Drop Multiplexer (OADM) based on fiber grating and optical circulators, mathematic model of the indexes to evaluate the crosstalk pertormance,namely power penalty and throughput,is established. We also describe the model with graphs and draw a conclusion:to get a network with excellent performance,proper optical power,the number of nodes,the loss in every node and bit rate are needed.
     对含有光纤光栅和光环形器的DWDM(密集波分复用)环网存在的串扰进行了分析,得到了评价串扰性能的指标(功率恶化、网络吞吐量)的数学模型,并将此模型图形化,联系图形得出了功率恶化、吞吐量与节点个数、节点损耗、串扰系数、发射功率、比特率等因素的关系。
短句来源
  “power penalty”译为未确定词的双语例句
     4×10Gbps WDM Transmission over 640km of G.652 Fiber Using Cascaded Chirped Fiber Bragg Gratings Dispersion Compensation with Low Power Penalty
     用级联光纤光栅补偿色散在G.652光纤上4×10Gbps无电中继低代价传输640km
短句来源
     The numerical results show that the system suffers a power penalty of 4.8 dB corresponding to chromatic dispersion index r=0.4 for seven-chip M-sequence,at a BER of 10-9.It is further noticed that the number of simultaneous users are limited to 24 for r=0.4 and 20 for r=0.6,for 31-chip M-sequence,at 6 dB power penalty.
     数值计算结果显示,r=0.4时7码片M-序列系统在10-9的BER时功率衰减4.8dB; 并进一步表明,对功率衰减6dB的31码片M-序列系统,当r=0.4时,同时使用的用户不超过24个,而r=0.6时,使用的用户不超过20个.
短句来源
     Optical fiber transmission experiments at a data rate of 10 Gb/s show that the module can be used for long-haul transmission. After transmission through 40 km,the power penalty is less than 1 dBm at a bit-error-rate of 10~(-12).
     并进行了10 Gb/s速率的光纤传输实验,经过40 km光纤传输后通道代价不到1 dBm(误码率为10-12),满足10 Gb/s长距离光纤传输系统的要求。
短句来源
     A practical 8×10 Gb/s transmission experiment with CSRZ formats in straight line was also conducted and only 2.5 dB power penalty was cost after 2560 km transmission with error-free code.
     同时在实际的2560km G. 652光纤链路上利用上述三种调制格式以点对点形式进行了8×10Gb/s传输实验,通过适当控制线路的功率分配以及合理安排系统的色散补偿,实现了三种调制格式的无电中继条件下的零误码传输。
短句来源
     The performance of a 1 Gb/s and 20 channels system is compared for conventional and dispersion shifted fibers. With 10 GHz channel separation ,the lowest power penalty of central channel is 1. 75 dB for heterodyne detection and 0. 77 dB for direct detection after 1 000 km in dispersion shifted fiber, but for conventional fibers, it is 0. 9 dB of heterodyne detection and 0. 38 dB of direct detection.
     对传输速率为1Gb/s和信道间隔为10GHz的20路FSK直接检测和外差检测的系统,当信号在常规光纤中传输1000km后,中间信道的最小功率代价分别为0.9和0.38dB; 对于色散位移光纤,最小功率代价分别为1.75和0.7dB。
短句来源
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  power penalty
The protection time was measured to be less than 9 ms, and the power penalty caused by the protection process was negligible.
      
Bit rate of 10, 20 and 40 Gbits/s causes power penalty of 1 dB with crosstalk level of -41.5, -46.25 and -49 dB, respectively.
      
Crosstalk due to phase error also causes higher power penalty at higher bit rate.
      
For crosstalk level of -30 dB and below, the power penalty is negligible.
      
For WDM system, a crosstalk level of -21.9 dB causes a power penalty of 1 dB for 64 channels and less than 0.5 dB for 16 channels and 32 channels, respectively.
      
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The effect of intersymbol interference (ISI) in optical phase diversity FSK (PD-FSK) sys-tems is analyzed. The expressions of the associated power penalty resulting from ISI are proposed for the first. The relation between the power penalty and the system parameters is studied with typical parameter values.

本文分析了码间干扰(ISI)对相位分集频移键控(PD-FSK)光通信系统特性的影响,导出了由于ISI引起的系统功率代价的解析表达式,并考虑到典型的系统参数值,分析比较了功率代价与系统参数的关系。

In this paper, we analyze the effects of mode partition characteristics of semi-conductor laser diodes on optical fiber transmission system, discuss the physical meaning of mode partition coefficient K and calculate the transmission bit rate, distance and corresponding power penalty for the system in different bit-error-rate asymptotic line, fluctuation level, wave-length and optical source spectrum.

本文分析了半导体激光器模分配特性对光纤传输系统的影响,给出了模分配系数K的物理意义,计算了在不同误码率底线、不同波动程度、不同波长和不同的光源频谱下的系统传输速率和传输距离以及相应的功率代价。

This paper analyzes the effect of mode partition noise of laser diodes on the optical fiber transmission system.In the case of different error-rate asym- ptotic line,fluctuation level,center wavelength and optical source spectrumwidth, the transmission bit rate,distance and the corresponding power penalty are cal- culated.

本文分析了半导体激光器的模分配噪声对光纤传榆系统的影响,计算了在不同误码率底线、不同波动程度、不同中心波长和不同光源谱宽下的传输距离和传输速率以及相应的功率代价.

 
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