Intensity noise of mode-locked fiber grating external cavity semiconductor lasers |
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Authors: | Dogru N Ozyazici M S |
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Institution: | (1) Department of Electrical and Electronics, University of Gaziantep, 27310 Gaziantep, Turkey |
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Abstract: | The noise of hybrid soliton pulse source (HSPS) with linearly chirped Gaussian apodized fiber Bragg grating is analyzed by couple-mode equations including spontaneous emission noise when HSPS is mode-locked. Relative intensity noise (RIN) is calculated using numerical solutions of these equations. It is shown that transform-limited pulses are generated over a wide tuning range around the fundamental mode-locking frequency with low spontaneous noise. However, high noise level affects the operation of device, and therefore transform-limited pulses are not obtainable over a wide tuning range. Linewidth enhancement factor and spontaneous coupling factor are the most effective noise parameters and noise increases with increasing value of these parameters. |
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Keywords: | fiber Bragg grating mode-locked laser multi-quantum well laser (MQW) relative intensity noise spontaneous noise |
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