An actively mode-locked erbium-fiber laser with continuous wavelength tuning over the range 1528-1565 nm has been demonstrated. A gain-saturated InGaAsP NTW semiconductor optical amplifier (SOA) is used as the active mode locking element, functioning as an amplitude modulator which provides gain and has12 dBm peak power.>
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Cochláin et al. (1993) studied this question.
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