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We demonstrate on-chip multi-channel phase-sensitive amplification in a nonlinear waveguide, achieving 5 dB net gain and 15 dB extinction ratio. We show the manipulation of individual channels in a multi-channel scheme through controlling the initial phases.
Phase-sensitive amplification (PSA) is a nonlinear optical interaction providing attractive functionalities for all-optical classical and quantum signal processing with a wide range of promising applications, such as regeneration of high modulation formats [1] and amplification of entangled single-photon sources [2]. To exploit PSA in a scalable and compact implementation, this technique has been...
Comprehensive mid-IR nonlinear measurements of SiGe waveguides performed in the picosecond and femtosecond regime and compared to numerical calculations are reported. Nonlinear properties of SiGe waveguides in the mid-IR are extracted.
Photonic integrated circuits that exploit nonlinear optics in order to generate and process signals all-optically have achieved performance far superior to that possible electronically — particularly with respect to speed. Although silicon-on-insulator has been the leading platform for nonlinear optics for some time, its high two-photon absorption at telecommunications wavelengths poses a fundamental...
The mid-infrared is of great interest for a huge range of applications such as medical and environment sensors, security, defense and astronomy. I will give a broad overview of the different activities recently launched in INL Lyon, in close collaboration with several French and Australian institutions, under the umbrella of “Mid-IR integrated photonics” with a particular focus on novel integrated...
We report nonlinear measurements of SiGe waveguides in the mid-IR performed in the picosecond and femtosecond regime and compare the results to numerical calculations. Nonlinear properties of SiGe waveguides in the mid-IR are extracted.
We measure the nonlinear response of CMOS-compatible SiGe waveguides in the mid-infrared. Comparing with numerical calculations, we extract the multi-photon absorption coefficients and the induced free-carrier absorptions for wavelengths between 3µm and 5µm.
We demonstrate novel microcavity lasers in an integrated, CMOS compatible platform. This platform has promise for telecommunications and on-chip WDM optical interconnects.
A potential solution for the demand for highly stable pulsed lasers at hundreds of GHz repetition rates is represented by passively mode locked fiber lasers. These lasers are composed of a band-limited amplifier, a dispersive element and a nonlinear element. When a high finesse resonant filter is added intracavity, they emit pulses with a repetition rate equal to the filter free spectral range (FSR)...
The mid infrared (mid-IR, wavelength range between 2 and 10 μm) is of great interest for a huge range of applications such as medical and environment sensors, security, defense and astronomy.
Raman scattering can be exploited for amplification in optical fiber telecommunications or, chemical identification in spectroscopy, but represents a source of detrimental noise photons for quantum communications. The spectral distribution of spontaneous Raman scattering (SpRS) can be measured in bulk samples with the free-space 90° scattering method [1]. In long fibers the SpRS spectra can be measured...
We demonstrate a range of novel functions based on a high index doped silica glass CMOS compatible platform. This platform has promise for telecommunications and on-chip WDM optical interconnects for computing.
We summarize our recent results on the generation and of ultrafast optical signals in CMOS-compatible monolithic devices by exploiting the third order nonlinearity of glass based waveguides. We show that we can generate stable train of pulses at 200GHz rep rate with a novel passive mode-locking scheme based on an integrated ring resonator.
We report a novel design for an integrated optical parametric oscillator (OPO) in a CMOS-compatible microring. It exploits self-sustained lasing of the pump tuned to a microcavity resonance, preventing the OPO from dimming with thermal fluctuations.
We demonstrate all-optical XOR logic function for 40Gb/s DPSK signals in the C-band, based on four-wave mixing (FWM) in a silicon nanowire. Error-free operation with a system penalty of ∼ 4.3dB at 10−9 BER has been achieved.
We demonstrate 1st and 2nd order all-optical ultra-high speed temporal integration of complex optical waveforms by using an integrated CMOS compatible four-port micro-ring resonator. The device offers an unprecedented processing speed > 400GHz.
We demonstrate a mode locked laser based on a integrated high-Q microring resonator that exhibits stable operation of two slightly shifted spectral optical comb replicas, generating a highly monochromatic radiofrequency modulation.
We demonstrate all-optical wavelength conversion at 10 Gb/s for differential phase-shift keyed (DPSK) data in the C-band, based on four-wave mixing (FWM) in a silicon ring resonator. Error-free operation with a system penalty of ∼ 4.1 dB at 10−9 BER is achieved.
We demonstrate a stable, low noise, 200GHz passively mode locked soliton laser based on a novel design that extends the Dissipative-FWM concept. It is based on a highly nonlinear, CMOS compatible integrated micro-ring resonator.
We demonstrate 1st and 2nd order all-optical ultra-high speed temporal integration of complex optical waveforms by using an integrated CMOS compatible four-port microring resonator. The device offers an unprecedented processing speed > 400GHz.
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