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4×10Gbps WDM transmission over low loss HC-PBGF at 2μm wavelengths is demonstrated using a 2mm long QCSE based InP MZM with Vπ of 6V and ER>20dB. An OSNR of 25dB is required to achieve error free transmission.
Using simple intensity-modulation direct-detection systems, low-cost transceivers and easy-to-install 1-mm core diameter plastic fibers, recent activities on multigigabit baseband and ultra-wideband radio transmission over 50-m link are reported.
A 1×2 multimode interference device is monolithically integrated to two electroabsorption modulator based switches at the output ports by means of quantum-well intermixing. At the wavelength range of 1550-1570nm, both arms act as separate DC switches which can be modulated with the extinction ratios of up to 10dB. Monolithic integration of active and passive photonic components is attractive due to...
We demonstrated an all-optical up-conversion of Multiband OFDM UWB signal employing optical frequency multiplication technique. After transmission over multimode fiber, the performance of the spectral mask and error vector magnitude are compliant with ECMA standard.
We present the experimental study on dynamic capacity allocation in radio-over-fiber based on SOA optical routing. One-dimensional dynamics using optical routing as well as two-dimensional dynamics by optical routing and electrical SCM are demonstrated.
We address the successful transmission and optical dynamic routing of high capacity RF data using an SCM or OFDM format over multi-mode fiber links, by the means of optical frequency multiplication.
We present, both numerically and experimentally, the nonlinearity effect of the intensity modulator in RoF transmitters through the comparison between single-carrier QAM and multi-carrier OFDM signals. The acceptable RF power level of the multi-carrier OFDM signal is 2 dB less compared with the single-carrier signal for the same EVM penalty of 1%, indicating the degradation due to inter-modulation...
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