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Optical modulators are central to a large number of applications in photonics particularly in the area of communication as they provide the function of writing electrical data onto an optical carrier. Silicon photonics provides a route to the realisation of low cost photonic integrated circuits through fabrication which is synonymous with CMOS electronic fabrication, i.e., high volume and high yield...
We demonstrated an integrated InP high-power dual pair balanced uni-traveling carrier photo-detector. Each pair delivers over 1 W of RF output power into a 50 Ω load at 2 GHz which is 6 dB higher than a discrete diode of the same junction diameter. The responsivity is 0.65 A/W and the common mode rejection ratio of the balanced diode pair was measured to be greater than 40 dB. The OIP3 was measured...
We demonstrated a high-power balanced photo-detector with over 1 W of RF output power at 2 GHz and OIP3 of 48 dBm at room temperature. Responsivity is 0.65 A/W and CMRR > 40 dB.
Ultra fast photonics produce a wide spectrum coverage which is useful in producing fast waveforms of wide bandwidth with prescribed arbitrary amplitude and shapes. We will survey several arbitrary waveform generation techniques.
We propose and demonstrate a novel scheme to achieve low polarization dependent gain (PDG) forward-pumped Raman amplification via polarization sweeping at 10 GHz. This scheme employs the asymmetry of electro-optic coefficients of LiNbO/sub 3/ crystals to sweep the pump SOP at 10 GHz across the Poincare sphere.
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