Wavelength-switchable erbium-doped fiber ring laser combined with a Fabry-Perot laser diode and a sampled grating |
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Authors: | Ryun Kyung Kim Kwang No Park Kyung Shik Lee |
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Institution: | a School of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea b Department of Optical Engineering, Sejong University, Seoul 143-747, Republic of Korea |
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Abstract: | We present a wavelength-switchable erbium-doped fiber ring laser consisting of an anti-reflection coated Fabry-Perot laser diode (FP-LD) and a sampled fiber Bragg grating (SFBG). The wavelength switching is obtained easily by the shift of FP mode with respect to the reflection peaks of the SFBG. The proposed laser apparatus not only simultaneously emits two wavelengths but also switches between the two wavelengths by adjusting the modes of FP-LD with a change of the injection current of the FP-LD as little as ∼1 mA. The proposed wavelength-switchable erbium-doped fiber ring laser exhibits high laser performance with side-mode suppression ratio (SMSR) ?50 dB. |
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Keywords: | Erbium-doped fiber Fabry-Perot laser diode Sampled fiber Bragg grating Fiber ring laser Side-mode suppression ratio |
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