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Multichannel intermodulation distortion in high-speed GaInAsP lasers

Multichannel intermodulation distortion in high-speed GaInAsP lasers

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We present an experimental study of intermodulation distortion (IMD) in high-speed, long-wavelength GaInAsP lasers modulated up to 8 GHz. It is found that three-tone distortion products are the dominant contribution to IMD interference when the number of subcarriers is large. These distortion data are used with a simple theory to predict accurately the measured signal/noise ratio for each channel of a multichannel subcarrier system.

References

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      • T.E. Darcie , R.S. Tucker , G.J. Sullivan . Intermodulation and harmonic distortion in InGaAsP lasers. Electron. Lett. , 665 - 666
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