Alifah, Suryani, Idrus, Sevia M., Kassim, Norazan M., Sheng, Neo Yun, Rahmat, Mohd F. and Green, Roger (2013) Intermodulation distortion analysis of feedforward linearised laser transmitter employing volterra series approach. Optik - International Journal for Light and Electron Optics, Volume 124 (Number 7). pp. 631-634. doi:10.1016/j.ijleo.2011.12.041 ISSN 0030-4026.

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Abstract

This paper demonstrates intermodulation distortion (IMD) analysis of a feedforward linearisation technique in directly modulated semiconductor laser employing a Volterra series approach. Variations of IMD suppression with RF modulation frequency as well as modulation index are shown. The results show that the proposed system can reduce the third intermodulation distortion (IMD3) by more than 45 dB for the wide frequency range from 500 MHz to 10 GHz, 30 mA bias current and 0.1 modulation index. It is also shown that the IMD3 reductions remain constantly for variation of the index modulation from 0.1 to 0.9. Therefore the proposed system can reduce significantly IMD without influence of input power level.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > Engineering
Journal or Publication Title:	Optik - International Journal for Light and Electron Optics
Publisher:	Urban und Fischer Verlag
ISSN:	0030-4026
Official Date:	April 2013
Dates:	Date Event April 2013 Published
Volume:	Volume 124
Number:	Number 7
Page Range:	pp. 631-634
DOI:	10.1016/j.ijleo.2011.12.041
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Universiti Teknologi Malaysia (UTM)
Grant number:	02H00 (UTM)

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