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Twentieth-order rational harmonic mode-locking (RHML) semiconductor optical amplifier fiber laser (SOAFL) pulses are demonstrated by using 1-GHz backward dark-optical comb injection. Maximum frequency detuning range of plusmn 300 Hz, broadened pulsewidth of 35 ps, and highest average power of 0.4 muW for twentieth-order RHML-SOAFL pulse are characterized. The extraordinary phenomena on the red-shifted...
This paper investigates the first demonstration of linearization of semiconductor optical amplifier (SOA) using feed forward linearization. For improving the linearity and suppressing the four wave mixing (FWM) of SOA the amplifier uses the feed forward technique. This technique should be applicable to any microwave or even millimetre frequency band and any externally modulated laser. Link performance...
We describe the design and development of a novel tunable fiber laser and its application to polarization-mode dispersion measurements of optical fibers using broad-band orthogonal-pump four-wave mixing in a semiconductor optical amplifier.
Variable gain gain-clamped operation has been demonstrated across the EDFA operating window using a novel technique. Gain clamped levels have been monotonically varied by 14 dB. The gain flatness of the device is less than 4 dB
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