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We have demonstrated all-optical on-off switching at 10 Gbit/s using four-wave mixing in only 1.9 m of bismuth-based highly nonlinear fiber. The all-optical on-off switch has a fast response time and high ON/OFF switching ratio.
A novel 50-GHz interleaved bidirectional transmission system is proposed and experimentally demonstrated using a four-port interleaver to enable unidirectional amplification in a recirculating loop. After 500-Km, < 2.5-dB power penalty has been achieved at 10-Gb/s.
We experimentally demonstrate a stimulated Brillouin scattering free, all fiber phase conjugator using 1-m length of our fabricated bismuth oxide-based nonlinear fiber. Using the conjugator, error-free, dispersion compensated transmission of a 10-Gbit/s NRZ signal over a 150 km SMF transmission link is readily achieved.
We report optical amplification in a bismuth-doped silica fiber at 1308 nm with 810 nm excitation and demonstrated simultaneous optical amplification at two wavelengths near 1300 nm region. This wavelength is the closest to the important telecommunications window.
Near infrared emission with a bandwidth more than 450 nm which should be useful for ultra broadband optical amplifiers and tunable lasers for optical telecommunication, has been observed from Bi-doped lithium alumino silicate glass.
We demonstrate a simple method to generate optical pulse train with tunable pulsewidth at 10 Gb/s using four-wave mixing in 1.9 m bismuth based highly nonlinear fiber.
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