Microwave analog optical links using suboctave linearized modulators
- 1 September 1996
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 8 (9) , 1273-1275
- https://doi.org/10.1109/68.531860
Abstract
We report experimental links at frequencies up to 4 GHz which use two integrated optical Mach-Zehnder interferometric modulators in series to reduce third-order intermodulation distortion. This design improves the intermodulation-free dynamic range (up to 88 dB with 1 MHz noise bandwidth is demonstrated) with no noise figure penalty relative to a link using a standard modulator. Detector current is low (<2 mA), which is necessary for the detector to provide adequate linearity.Keywords
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