Spur-free dynamic range measurements of a fiber optic link with traveling wave linearized directional coupler modulators
- 1 February 1994
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 6 (2), 273-275
- https://doi.org/10.1109/68.275448
Abstract
Two-tone testing was performed on a laboratory fiber optic link with LiNbO/sub 3/ traveling wave linearized directional coupler modulators. The third-order distortion was measured at 500 MHz and 1000 MHz, and the spur-free dynamic range was determined. Two modulator configurations, with either one or two passive bias sections, were tested and the results were compared with measurements of simple directional coupler modulators. A 9.5-11 dB improvement in the dynamic range was found in the links employing the linearized modulators.Keywords
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