187 research outputs found
Tailored design of WDM filters in BCB embedded PhC membranes
No full textWe propose a design strategy for wavelength division multiplexing (WDM) filters in BCB embedded photonic crystal membranes. Due to the weaker vertical confinement determined by the material embedding the whole structure, accurate tailoring of the resonant cavity and of both bus and drop waveguides is necessary, in order to guarantee the required performance of the filter for WDM applications
160 Gb/s Silicon All-Optical Data Modulator based on Cross Phase Modulation
No full textWe have demonstrated 160 Gb/s all-optical data modulation with an extinction ratio of 18.5 dB based on XPM in a silicon nanowire. Error free performance is achieved for the optically modulated 160 Gb/s signal
Silicon chip based wavelength conversion of ultra-high repetition rate data signals
No full textWe report on all-optical wavelength conversion of 160, 320 and 640 Gbit/s line-rate data signals using four-wave mixing in a 3.6 mm long silicon waveguide. Bit error rate measurements validate the performance within FEC limits
All-Optical Wavelength Conversion of a High-Speed RZ-OOK Signal in a Silicon Nanowire
No full textAll-optical wavelength conversion of a 320 Gb/s line-rate RZ-OOK signal is demonstrated based on four-wave mixing in a 3.6 mm long silicon nanowire. Bit error rate measurements validate the performance within FEC limits
Ultra-High-Speed Optical Serial-to-Parallel Data Conversion in a Silicon Nanowire
No full textWe demonstrate conversion from 64×10 Gbit/s OTDM to 25 GHz DWDM by time-domain optical Fourier transformation. Using a single silicon nanowire, 40 of 64 OTDM tributaries are simultaneously converted to DWDM channels within FEC limits
320 Gb/s Phase-Transparent Wavelength Conversion in a Silicon Nanowire
No full textAll-optical wavelength conversion for a 320-Gb/s RZ-DPSK signal is demonstrated based on four-wave mixing in a silicon nanowire. BER better than 10-9 is achieved for the wavelength converted RZ-DPSK signal
Ultrafast Nonlinear Signal Processing in Silicon Waveguides
No full textWe describe recent demonstrations of exploiting highly nonlinear silicon waveguides for ultrafast optical signal processing. We describe wavelength conversion and serial-to-parallel conversion of 640 Gbit/s data signals and 1.28 Tbit/s demultiplexing and all-optical sampling
Tailored Design for WDM Filters in BCB-embedded PhC Membranes
No full textWe propose a design strategy for WDM filters in BCB-embedded Photonic Crystal membranes which
overcomes the issues related to the weaker vertical optical confinement introduced by the cladding material
Mid-IR soliton microcomb generation in silicon nitride microring resonators
No full textWe demonstrate soliton Kerr-comb generation in a high-Q silicon nitride microring with 143 GHz free spectral range pumped at 1970 nm. The resulting low noise ultrafast pulse train displays a 422 nm bandwidth, extending up to 2250 nm
Generation and heterodyne detection of a 2-µm-band 16-QAM signal based on inter-band wavelength conversion
No full textWe have demonstrated the generation and self-heterodyne detection of a 2-µm-band 32-Gbit/s line-rate 16-QAM signal based on inter-band wavelength conversion in an AlGaAsOI nanowaveguide. Error-free performance is achieved using LDPC codes with 33% overhead
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