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An experiment of two channels WDM with 5 Gb/s has been performed. Chaotic characteristics of the propagated signals with different GVD and nonlinear impairments in this optical-fiber link have been analyzed through these experimental data.
We report the first experimental demonstration of an entanglement-based secure communication system that is resilient to entanglement-breaking loss and noise on the communication channel.
We report the first demonstration of a broadband optical isolation using a Silicon nanowaveguide via Bragg scattering four-wave mixing. We achieve an isolation ratio of 4 dB over a bandwidth of 8 nm.
An optical diode consisting of cascaded silicon micro-resonators enables non-reciprocal transmission through direction dependent resonance shift. One-way 10Gbps data transmission is realized through the strong dispersion and attenuation associated with a resonant structure.
We present a novel optical interferometric strategy to generate arbitrary linear/nonlinear frequency-chirped electrical pulses with widely tunable center frequency. The Time-Bandwidth Product of these waveforms is twice that of current counterpart techniques.
Record transmissions with the direct modulation of a 1550nm-hybrid III/V-on-Silicon laser of 21.5Gbps in optical back-to-back (B2B) and 12.4Gbps over 50km of Single-Mode Fiber (SMF) are achieved. Neither optical amplification, nor optical dispersion-compensation is used.
All-optical clock recovery for 40 Gb/s NRZ-QPSK signals is demonstrated experimentally using an amplified feedback DFB laser. Low timing jitter (<370 fs) optical clock is obtained with low injection power (<6 dBm).
Error-free detection at 1 Gb/s is demonstrated with a Si ion-implanted waveguide photodiode operating at 1.9 μm. The measured 0.14-A/W responsivity corresponds to a 5 dB decrease in photocurrent compared to operation at 1.55 μm.
We examine the photon statistics of photon-subtracted thermal light with photon-number-resolving detection. We show the photon-number distribution transforming from a Bose-Einstein distribution to a Poisson distribution as the number of subtracted photon increases.
We couple a single suspended carbon nanotube to the near field of a free standing optical microdisk. The strong interaction between the nanotube and the microcavity produces an ultrahigh photocurrent response as large as 0.35mA/W.
We report measurements of the non-instantaneous nonlinear response of hydro-genated amorphous silicon nanowire waveguides at telecommunications wavelengths. We compare the results to those obtained with similar crystalline silicon nanowires.
An add-drop filter with asymmetric coupling to bus waveguides, cascaded with a notch filter, achieves diode and transistor effects, and realizes NAND and NOR logic without physically altering the device, emulating the function of neurons.
We demonstrate 40-Gb/s OFDM-PON based on polarization interleaving (PI) and 64-QAM modulation. The bandwidth requirement of components is reduced using the PI scheme and high-order modulation, achieving high-speed transmission.
Towards Mid-Infrared silicon microphotonic circuits, we demonstrate broadband on-chip silicon structures including straight, bent waveguides, and beam splitters, utilizing a novel air-clad pedestal configuration. Transmission loss of 2.7 dB/cm is obtained at λ=3.7 um.
We show that using metal-insulator-metal (MIM) waveguides to carry out various second-order nonlinear optical processes not only provides highly desired tight optical confinement but also facilitates the phase-matching due to their inherently large anisotropy.
We experimentally demonstrate tunable fast light in a semiconductor optical amplifier based on cross-gain modulation. Up to 60 ps amplitude-invariant time delay is achieved on a 500 MHz microwave signal.
We develop an all-integrated optoelectromechanical system that operates up to 4.20 GHz. The in-plane bulk acoustic modes of a photonic crystal membrane are electrocapacitively actuated and optically detected by a high-Q slotted photonic crystal cavity.
We present a fiber-based multichannel source of correlated photon pairs in the telecommunication O-band. Coincidence-to-accidental ratios >100 (≃1) are measured between the paired (unpaired) signal-idler channels.
Tunable microwave signal generation with frequencies ranging from below 1 GHz to over 40 GHz is demonstrated experimentally using the period-1 dynamics induced in a 1310-nm Quantum Dot Distributed-Feedback laser under external optical injection.
Error-free transmission at 40, 36, and 30 Gbit/s across 50, 200, and 400 m, respectively of multimode fiber is achieved with energy dissipation of 119, 128 and 127 fJ/bit using 850 nm vertical-cavity surface-emitting lasers.
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