We demonstrate broadband supercontinuum generation (SCG) in a dispersion-engineered silicon-germanium waveguide. The 3 cm long waveguide is pumped by femtosecond pulses at 2.4 μm, and the generated extends from 1.45 to 2.79 μm (at -30 dB point). broadening mainly driven of dispersive wave 1.5-1.8 region soliton fission. SCG was modeled numerically, excellent agreement with experimental results obtained.

We present a systematic experimental study of the linear and nonlinear optical properties silicon-germanium (SiGe) waveguides, conducted on samples varying cross-sectional dimensions Ge concentrations.The evolution various for waveguide widths in range 0.3 to 2 µm concentrations between 10 30% is considered.Finally, we comment comparative performance when they are considered applications at telecommunications wavelengths.

We report the fabrication of a tellurite optical fiber with suspended core design, formed on 220-nm-wide filament glass. The was pumped at two different wavelengths (1500 and 2400 nm) using femtosecond pulses generated from an parametric oscillator (OPO) in order to produce mid-infrared supercontinuum (SC). observed that SC spectra extending 3 μm were readily generated. To further optimize detailed numerical study performed, which revealed how structural characteristics dramatically...

We demonstrate four wave mixing (FWM) based wavelength conversion of 40 Gbaud differential phase shift keyed (DPSK) and quadrature (QPSK) signals in a 2.5 cm long silicon germanium waveguide.For 290 mW pump power, bit error ratio (BER) measurements show approximately 2-dB power penalty both cases DPSK (measured at BER 10 -9 ) QPSK (at -3 that we examined.

In this paper, we present a review on silicon-based nonlinear devices for all optical processing of complex telecommunication signals. We discuss some recent developments achieved by our research group, through extensive collaborations with academic partners across Europe, signal using silicon-germanium and amorphous silicon based waveguides as well novel materials such rich nitride tantalum pentoxide. the performance four wave mixing wavelength conversion applied signals Differential Phase...

We demonstrate the design, fabrication and characterization of a highly nonlinear graded-index SiGe waveguide for conversion midinfrared signals to near-infrared.Using phase-matched four-wave mixing, we report signal at 2.65 µm 1.77 using pump 2.12 µm.

Forearm crutches are frequently used in the rehabilitation of an injury to lower limb. The recovery rate is improved if patient correctly applies a certain fraction their body weight (specified by clinician) through axis crutch, referred as partial bearing (PWB). Incorrect has been shown result extended period or even cause further damage There currently no minimally invasive tool for long-term monitoring patient's PWB home environment. This paper describes research and development...

In this work we demonstrate, for the first time, successful four wave mixing (FWM) based wavelength conversion of Binary Phase Shift Keyed (BPSK) and Quadrature (QPSK) signals, at 20 Gb/s bitrate, in a 1-mm long amorphous silicon waveguide.A maximum FWM-efficiency -26 dB was achieved by employing pump power just 70 mW, establishing technology as contender development ultra-compact, low power, photonics converter.Bit Error Ratio (BER) measurements demonstrated with less than 1 penalty level,...

We demonstrate optical wavelength conversion in a multi-mode silicon waveguide using four wave mixing Bragg scattering enabled by dual-pump CW scheme. The original signal and the generated idler pair excite one spatial mode (first, TE mode), while two pumps different (second, mode) of same waveguide. Our approach exploits differences group velocities various supported modes to ensure phase matching only for desired nonlinear process. In this proof-of-principle experiment, any unintended...

We report a low-power continuous wave-pumped phase sensitive amplifier (PSA)-based regenerator implemented in passive silicon-based waveguide. A polarization assisted-PSA, consisting of two orthogonally-polarized pumps and phase-locked signal copolarized to one them, was low-birefringence silicon germanium (SiGe) The strong TE/TM modal symmetry the waveguide its large nonlinear coefficient enabled achievement an extremely extinction ratio approximately 29 dB for total input power only 21.3...

We report a nonlinear signal processing system based on SiGe waveguide suitable for high spectral efficiency data signals.Four-wave-mixing (FWM)-based wavelength conversion of 10-Gbaud 16-Quadrature amplitude modulated (QAM) and 64-QAM signals is demonstrated with less than -10-dB (CE), 36-dB idler optical signal-to-noise ratio (OSNR), negligible bit error (BER) penalty 3-dB bandwidth exceeding 30nm.The device was CW-pumped operated in passive scheme without giving rise to any two-photon...

We report the first demonstration of a single-pass dual-orthogonal-pump four-wave mixing-based wavelength conversion scheme in silicon-based waveguide. The silicon germanium waveguide used was designed to exhibit strong TE/TM mode similarity across broad range as well large nonlinear coefficient. A polarization-dependent loss just 0.42 dB measured, and 40-Gb/s differential phase-shift keying signals demonstrated with 1.5-dB power penalty at bit error ratio 10 <sup...

We experimentally demonstrate phase regeneration of a 40-Gb/s differential shift keying (DPSK) signal in 1.7-m long highly nonlinear lead silicate W-type fiber using degenerate two-pump phase-sensitive amplifier (PSA). Results show an improvement the Error Vector Magnitude (EVM) and reduction almost factor 2 noise after for various levels at input.

We experimentally demonstrate phase-sensitive amplification in a highly nonlinear and low-dispersion lead-silicate W-type fiber. A gain variation of 6 dB was observed 1.56-m sample the fiber for total input pump power 27.7 dBm.

Error‐free transmission of 10 Gbit/s non‐return to zero optical signals along 2.5 cm long silicon germanium waveguides at a wavelength 1.98 μm is demonstrated. Bit error rate measurements confirm the absence penalty during through subwavelength 1.3 and 2.2 wide waveguides.

A binary step-like phase response and phase-sensitive extinction ratio in excess of 28dB under CW pump operation was demonstrated a 20mm-long low birefringence SiGe waveguide, using polarization-assisted sensitive amplifier scheme.

We report a waveguide-enhanced Raman spectroscopy (WERS) platform with alignment-tolerant under-chip grating input coupling. The demonstration is based on 100-nm thick planar (slab) tantalum pentoxide (Ta 2 O 5 ) waveguide and the use of benzyl alcohol (BnOH) its deuterated form (d7- BnOH) as reference analytes. couplers simplifies WERS system by providing improved translational alignment tolerance, important for disposable chips, well contributing to conversion efficiency. non-volatile,...

We report a new design optimization process for planar photonic waveguides applied to waveguide-enhanced Raman spectroscopy (WERS) that combines the of both surface intensity performance and grating coupling efficiency. consider impact film thickness on efficiency two materials with different refractive indices, namely tantalum pentoxide (Ta 2 O 5 ) silicon (Si). propose figure-of-merit (FOM) takes into account dependence excitation thickness. Our study shows optimum surface-sensitive...

We demonstrate polarization insensitive FWM-based wavelength conversion of 40-Gb/s DPSK signals in a SiGe waveguide, with 0.42-dB polarization-dependent loss. A 1.5-dB power penalty was measured at BER 10−9.

We report the characterization of loss and nonlinearity a broadband tellurite glass fiber both at 1.55μm 2μm wavelengths. The study is accompanied by demonstration wavelength conversion these

We demonstrate a polarization-assisted PSA-based phase regenerator in passive low-birefringence SiGe waveguide at low CW pump power. A PSER of 28.6-dB enables six-fold reduction phase-error and BER improvement approximately 2-dB the regenerated signal.

A method for denoising Raman spectra is presented in this paper. The approach based on the principle that original signal can be restored by averaging pixels structure similarity. Similarity searching and are not limited to neighbouring but extended throughout entire range across different frames. This distinguished from conventional single-frame neighbour pixel-based filtering. effectiveness robustness of proposed demonstrated through simulated experimental data sets with fixed parameters....

Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text M. A. Ettabib, K. Hammani, F. Parmigiani, L. Jones, Kapsalis, Bogris, D. Syvridis, Brun, P. Labeye, S. Nicoletti, and Petropoulos, "FWM-based Wavelength Conversion in a Silicon Germanium Waveguide," Optical Fiber Communication Conference/National Optic Engineers Conference 2013, OSA Technical Digest (online) (Optica Publishing Group, 2013), paper OTh1C.4. Export BibTex...