Laser sources on a heterogeneous III-V/silicon platform

The heterogeneous integration of III-V semiconductor lasers on a silicon waveguide platform using DVS-BCB adhesive bonding is reviewed. Both mW-level lasers and ultra-compact laser sources are discussed

Bridging the Mid-Infrared-to-Telecom Gap with Silicon Nanophotonic Spectral Translation

Expanding far beyond traditional applications in optical interconnects at telecommunications wavelengths, the silicon nanophotonic integrated circuit platform has recently proven its merits for working with mid-infrared (mid-IR) optical signals in the 2-8 {\mu}m range. Mid-IR integrated optical systems are capable of addressing applications including industrial process and environmental monitoring, threat detection, medical diagnostics, and free-space communication. Rapid progress has led to the demonstration of various silicon components designed for the on-chip processing of mid-IR signals, including waveguides, vertical grating couplers, microcavities, and electrooptic modulators. Even so, a notable obstacle to the continued advancement of chip-scale systems is imposed by the narrow-bandgap semiconductors, such as InSb and HgCdTe, traditionally used to convert mid-IR photons to electrical currents. The cryogenic or multi-stage thermo-electric cooling required to suppress dark current noise, exponentially dependent upon the ratio Eg/kT, can limit the development of small, low-power, and low-cost integrated optical systems for the mid-IR. However, if the mid-IR optical signal could be spectrally translated to shorter wavelengths, for example within the near-infrared telecom band, photodetectors using wider bandgap semiconductors such as InGaAs or Ge could be used to eliminate prohibitive cooling requirements. Moreover, telecom band detectors typically perform with higher detectivity and faster response times when compared with their mid-IR counterparts. Here we address these challenges with a silicon-integrated approach to spectral translation, by employing efficient four-wave mixing (FWM) and large optical parametric gain in silicon nanophotonic wires

Optical bistability in a traveling-wave SOA connected to a DFB laser diode: theory and experiment

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Stimulation of waveguide-enhanced Raman spectroscopy of liquids

We report the experimental demonstration of stimulated Raman spectroscopy of liquids enhanced by nanophotonic waveguides. We show a signal enhancement of 105 versus the spontaneous counterpart and set the way towards 103 even higher signals.info:eu-repo/semantics/publishe

Efficient continuous wave conversion of light beyond the half-bandgap spectral region of silicon

The efficient conversion of light with photon energies lower than the halfband-gapenergy is reported. Record efficiencies are demonstrated in a 7cm dispersion engineered silicon photonic wire at a pump power of 150 mW. © 2014 OSA.info:eu-repo/semantics/publishe

Demonstration of Stimulated Raman Scattering on a Silicon Nitride Photonic Integrated Waveguide

We report the first demonstration of stimulated Raman scattering (SRS) enabled by an integrated nanophotonic waveguide with CW excitations. It constitutes an important step towards all-on-a-chip Raman sensor suitable for both gas and liquid detection.info:eu-repo/semantics/publishe