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Proceedings Paper

Measurement of signal-to-noise ratio for mixture of coherent and incoherent sources using digital sampling oscilloscope
Author(s): Gyeon-il Kweon; Jung-ho Choi; Ji-heon Jeong
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Paper Abstract

Signal-to-noise for a coherent laser source and a mixture of a laser source with a narrow band amplified spontaneous emission source are directly measured using a digital sampling oscilloscope. The measurement for a coherent source is found unreliable due to the low level of shot-noise compared to the thermal noise. On the other hand, the measurement for a mixed source is found in good agreement with theoretical predictions within 1dB error.

Paper Details

Date Published: 6 October 2003
PDF: 6 pages
Proc. SPIE 5137, International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems, (6 October 2003); doi: 10.1117/12.517935
Show Author Affiliations
Gyeon-il Kweon, LG Cable Ltd. (South Korea)
Jung-ho Choi, LG Cable Ltd. (South Korea)
Ji-heon Jeong, LG Cable Ltd. (South Korea)


Published in SPIE Proceedings Vol. 5137:
International Conference on Lasers, Applications, and Technologies 2002: Advanced Lasers and Systems

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