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Third order cascaded Raman shifting is used to generate light to 1867 nm in sulfide fibers, and the nonlinearity is measured to be ~5.7 times 10-12 (m/W). Damage at ~1 GW/cm2 limits the wavelength shift range.
An EDFA bypass and filtering architecture is demonstrated , allowing a 1310 nm QKD channel to be transmitted over the same fiber as four 1.5 mum WDM channels which are amplified in mid-span.
Using a two-stage design with ~1 m standard fiber followed by 10 cm of high-nonlinearity, fused silica fiber, super-continuum is generated from ~0.8 to 3.0 mum using amplified 2 ns laser diode pulses.
We report on the development of simple, femtosecond soliton sources based on the propagation of CW noise through a highly nonlinear fiber. A method of wavelength extension to the visible is proposed.
Pulse propagation in Er3+-doped fiber amplifiers (EDFA) is studied within the framework of a spectrally-resolved pulse rate-propagation equations model. Calculated pulse spectrograms demonstrate the effects of dispersion on sub-picosecond pulse propagation in EDFAs.
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