Title :
The design and implementation of a 7B2-16 optical digital PPM line code
Author :
Cryan, R.A. ; Milner, S.
Author_Institution :
Dept. of Electr. & Electron. Eng., Manchester Metropolitan Univ., UK
Abstract :
Considers the design and implementation of a 7B2-16 line code for an optical fibre digital PPM system employing a PIN-FET receiver. A code word map is presented and the encoder state probability distribution evaluated. The 7B2-16 code has an efficiency of 87.5% and it has been designed such that the redundancy is used to minimise the timing jitter associated with large pulse position disparities. A low-speed coder has been implemented and practical results show that the jitter is reduced to 18% of that of the uncoded case
Keywords :
codes; optical links; optical modulation; optical receivers; pulse position modulation; 7B2-16 line code; PIN-FET receiver; code word map; efficiency; encoder; low-speed coder; optical digital PPM line code; optical fibre system; state probability distribution; timing jitter; Bandwidth; Design engineering; Discrete wavelet transforms; Frequency; Jitter; Materials requirements planning; Optical design; Optical sensors; Phase change materials;
Conference_Titel :
Singapore ICCS/ISITA '92. 'Communications on the Move'
Print_ISBN :
0-7803-0803-4
DOI :
10.1109/ICCS.1992.254882
