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A remarkable feature about the temporal optical soliton is that it can be phase-matched to new frequencies, emitting so-called resonant radiation (RR). This constitutes an efficient source of ultrafast pulses in emerging wavelength regimes, and plays a vital role in coherently extending the supercontinuum bandwidth [1]. RR waves are usually invoked by four-wave mixing (4WM) through the self-phase...
This paper investigates the use of a dual wavelength laser source, a frequency shifter, an erbium-doped fiber amplifier, and an optical filter to compose a multiwavelength fiber laser (MWFL) with an ultranarrow wavelength spacing. The frequency shifter can be achieved by modulating an optical carrier and an electrical sinusoidal signal in an optical single-sideband modulation format. The detuning...
Today's electronic photonic integration approaches involve various trade-offs between integration complexity, cost and performance, with no single approach being able to satisfy both the high-performance and low cost/complexity requirements. Luxtera's process [1] represents monolithic integration, which has low parasitics and customized photonics but slow transistors. Oracle's [2] and ST Micro [3]...
A silicon-photonic link is monolithically-integrated in a bulk CMOS process for the first time. Deep-trench isolation enables polySi waveguide integration. PolySi resonant detectors remove the need for Ge integration. Split-diode design enables half-rate receivers, mitigating transistor speed limitations. An on-chip feedback loop locks the resonant defect detector to the laser wavelength, combating...
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