Abstract
We demonstrate a directly modulated analog photonic link (APL) capable of a high multioctave spurious-free dynamic range (SFDR). The APL consists of a pair of laser diodes, modulated in a push–pull manner, and a balanced photodetector aiming at suppressing the second-order intermodulation distortion (IMD2). In a wide frequency range of 600 MHz (2.60–3.20 GHz), an IMD2 suppression as high as 23 dB and an improvement of 5 18 dB of the second-order SFDR, relative to a conventional single arm photonic link, have been achieved. In this frequency range, the APL SFDR is in excess of 116 dB Hz蚠 _.
Original language | English |
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Pages (from-to) | 810-812 |
Number of pages | 3 |
Journal | IEEE photonics technology letters |
Volume | 21 |
Issue number | 24 |
DOIs | |
Publication status | Published - 15 Dec 2009 |