Push-pull modulated analog photonic link with enhanced sfdr


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Marpaung, David and Roeloffzen, Chris and Etten, Wim van (2009) Push-pull modulated analog photonic link with enhanced sfdr. In: 2009 IEEE International Topical Meeting on Microwave Photonics, 14-16 October 2009, Valencia, Spain.

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Abstract:We demonstrate an analog photonic link (APL) with a high multioctave spurious-free dynamic range (SFDR) of 120 dB.Hz2/3 at the frequency of 2.50 GHz. The APL consists of a pair of distributed-feedback laser diodes (DFB LDs), modulated in a push-pull manner, and a balanced photodetector aiming at suppressing the second-order intermodulation distortion (IMD2). At the frequency of 2.50 GHz, an IMD2 suppression of 40 dB, relative to the case of a single arm APL with one laser, is obtained. In a wide frequency range of 600 MHz (2.60 to 3.20 GHz), an improvement of 5 to 18 dB of the second-order SFDR relative to the single arm APL has been achieved.

Item Type:Conference or Workshop Item
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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