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|Title:||Pattern dependency comparison of four different 40-Gb/s optical duobinary transmitters using low-bandwidth modulators|
|Keywords:||Lithium niobate (LiNbO3) modulator|
|Source:||Lee, H., Kim, H., Hwang, S., Oh, Y., Lee, J., Jeong, J. (2008-05-15). Pattern dependency comparison of four different 40-Gb/s optical duobinary transmitters using low-bandwidth modulators. Optics Communications 281 (10) : 2768-2773. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optcom.2008.01.016|
|Abstract:||We investigate the pattern dependency of the 40-Gb/s optical duobinary signals generated by a 10-Gb/s-rated Mach-Zehnder modulator with four different configurations. These configurations correspond to all possible combinations of a 15-GHz-bandwidth low-pass filter and a 0.24-nm bandwidth optical filter used to shape up the duobinary signals. We compare through experiment the back-to-back sensitivities and transmission performances of the duobinary signals for pseudorandom bit sequence lengths of 27-1 and 231-1. The results show that the combination of the 10-Gb/s-rated modulator and the 0.24-nm optical filter exhibits the best performance in terms of both the receiver sensitivity and pattern dependency owing to the good frequency response of the optical filter. © 2008 Elsevier B.V. All rights reserved.|
|Source Title:||Optics Communications|
|Appears in Collections:||Staff Publications|
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