25 October 2004 Fiber laser relaxation oscillation noise suppression through the use of self-biased intracavity loss modulator
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Abstract
In this paper, we demonstrate a technique for suppressing the intensity noise of the erbium doped fiber lasers. We show that by introducing negative feedback into the system through the use of a self-biased intracavity loss modulator, the relaxation oscillation noise of the fiber laser could be suppressed by as much as 20 dB. To explain the observed noise reduction phenomenon, a simple theory based on teh linearized rate equation has been developed and also been supported by experimental measurements. We also derive a formula for estimating the maximum achievalbe intesity noise suppression ratio.
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Guanghao Zhu, Qiang Wang, Hao Dong, Niloy K. Dutta, "Fiber laser relaxation oscillation noise suppression through the use of self-biased intracavity loss modulator", Proc. SPIE 5595, Active and Passive Optical Components for WDM Communications IV, (25 October 2004); doi: 10.1117/12.565162; https://doi.org/10.1117/12.565162
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