A simple technique, based on a double optoelectronic feedback loop, is proposed and demonstrated to suppress intensity noise in high bit rate pulse trains generated by a frequency-modulated Er:Yb:gass laser. Relaxation oscillation and detuning noise components are reduced by 18.3 and 33 dB, respectively, achieving residual amplitude fluctuations of < 0.9%.
Optoelectronic feedback loop for intensity noise suppression in a high-bit-rate FM-operated Er-Yb laser
MARANO, MARCELLO;LONGHI, STEFANO;LAPORTA, PAOLO
1999-01-01
Abstract
A simple technique, based on a double optoelectronic feedback loop, is proposed and demonstrated to suppress intensity noise in high bit rate pulse trains generated by a frequency-modulated Er:Yb:gass laser. Relaxation oscillation and detuning noise components are reduced by 18.3 and 33 dB, respectively, achieving residual amplitude fluctuations of < 0.9%.File in questo prodotto:
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