Measurement of semiconductor laser amplifier noise figure in coherent optical transmission system |
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| Authors: | Walker G.R. Steele R.C. Walker N.G. |
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| Affiliation: | British Telcom Res. Labs., Ipswich, UK; |
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| Abstract: | ![]()
Reports the first detailed investigation of the effect of semiconductor laser amplifier noise figure on the sensitivity of a heterodyne receiver. Independent measurement of the amplifier spontaneous noise spectral density confirms that local oscillator-spontaneous emission beat noise accounts for all of the observed penalty.<> |
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