Abstract
The generation of a flat supercontinuum of over 80 nm in the 1550 nmregion by injecting 1.6 ps 10 GHz repetition rate optical pulses intoan 80-m-long dispersion-flattened microstructure fibre is demonstrated.The fibre has small normal dispersion with a variation smaller than1.5 (ps.nm−1.km−1) between 1500 and 1650 nm. Thegenerated supercontinuum ranging from 1513 to 1591 nm has the flatnessof ±1.5 dB and it is not so flat in the range of severalnanometres around the pump wavelength 1552 nm. Numerical simulation isalso used to study the effect of optical loss, fibre parameters andpumping conditions on supercontinuum generation in thedispersion-flattened microstructure fibre, and can be used for furtheroptimization to generate flat broad spectra.
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