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All-optical nonlinear phase noise reduction using an InP-over-SOI PhC nanocavity is experimentally demonstrated for 20-Gbit/s NRZ-QPSK signals. The phase-preserving intensitylimiting function results in an OSNR penalty reduction of 3.5 dB at a BER of 10-3. OCIS codes: (230.5298) Photonic crystals; (070.4340) Nonlinear optical signal processing; (060.1660) Coherent communications; (060.2330) Fiber...
Using a 1-mm long photonic crystal waveguide made of Gallium Indium Phosphide, we generate a peak second harmonic power of 45 μW, which correspond to a conversion efficiency of 210−4W−1.
A new optical switch is presented using InP/SOI hybrid photonic crystal nanocavity. Switching contrast of 11 dB with 20 mW peak power and recovery time of 14 ps are measured. NRZ wavelength conversion and power limiter are demonstrated at 10 Gb/s through system experiments with 6 and 1 mW peak power respectively.
We report on four-wave-mixing based all-optical wavelength conversion of a 56 Gb/s DQPSK signal and all-optical demultiplexing of a 170 Gb/s OOK signal in chalcogenide photonic crystal fibers. The high nonlinearity of the fibers allows error free and low power penalty operation with only 60 mW of total average power.
A 2D photonic crystal 3-ports filter with 6 dB bus insertion losses and drop efficiency of 47 % is reported. Error-free operation with low penalty (<0.5 dB) for OOK and DQPSK modulation formats is demonstrated.
We demonstrated error-free four-wave-mixing-based wavelength conversion of a 42.7-Gbit/s RZ-33% signal in a 1-m long GeAsSe chalcogenide microstructured fiber with a total average power of 56 mW.
We demonstrate 20 µW second harmonic generation in a photonic crystal waveguide. The collected signal has been used for optical performance monitoring of the chromatic dispersion and optical signal to noise ratio of a 42.5 Gb/s Return to Zero signal all over the C-band.
Photonic crystals waveguides (PhCWG), based on III–V materials are promising for high density integration of optical circuits. In slow light transmission regime, the local field enhancement scales inversely with the group velocity, thus decreasing the threshold of intensity-dependant nonlinear effects such as Kerr effects [1, 2]. We report here a comparison of four wave mixing (FWM) in III–V photonic...
We report a chalcogenide suspended-core fiber with a record Kerr-nonlinearity of 46 000 W−1km−1 and attenuation of 0.9 dB/m. Four-wave-mixing efficiencies of −5.6 dB at 10 GHz and −17.5 dB at 42.7 GHz are obtained.
We have designed and fabricated a photonic crystal filter intended for demultiplexing in wavelength division domain. This device is single-mode, the total insertion losses are about 12dB and the channel isolation can exceed 25dB. Non return to zero signal at 40Gb/s have been successfully filtered with no penalty in the bit error rate analysis. The device is cascadable to form a multi-channel demultiplexer...
Self-phase modulation and 10-GHz four-wave mixing are demonstrated in a low-loss and ultra-highly nonlinear suspended-core chalcogenide fiber. A record Kerr nonlinearity of 31 300 is measured and a direct evidence of fast response in time-resolved measurement of the nonlinear frequency conversion of high repetition rate is provided.
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