A novel measurement technique to estimate the RF beat-linewidth of free-running heterodyning system using a photonic discriminator


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Khan, M.R.H. and Marpaung, D.A.I. and Burla, M. and Roeloffzen, C.G.H. (2011) A novel measurement technique to estimate the RF beat-linewidth of free-running heterodyning system using a photonic discriminator. In: IEEE International Topical Meeting on Microwave Photonics jointly held with 2011 Asia pacific Microwave Photonics, MWP 2011, 18-21 October 2011, Singapore.

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Abstract:We propose a novel technique to our knowledge to estimate the beat spectrum linewidth of a free-running heterodyning scheme using an optical discriminator. Utilizing a dense wavelength division multiplexing (DWDM) filter as an optical discriminator, the phase modulation (PM) to intensity modulation (IM) conversion is achieved. Thus converted phase noise of the laser into RIN (relative intensity noise). We establish a relationship between the converted RIN and the beat spectrum linewidth. The proposed concept on beat spectrum linewidth estimation is demonstrated and compared with direct beat spectrum measurement. We show that our proposed technique estimates the beat linewidth more accurately for a free-running heterodyning scheme.
Item Type:Conference or Workshop Item
Copyright:© 2011 IEEE
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/78359
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