Archive > Volume 11 Issue 6 > 2015,11(6):418-420. DOI:10.1007/s11801-015-5189-5 CSTR:[cstr] Prev Next
A multi-wavelength fiber laser based on superimposed fiber grating and chirp fiber Bragg grating for wavelength selection
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Abstract:
In this paper, a new type of multi-wavelength fiber laser is proposed and demonstrated experimentally. Superimposed fiber grating (SIFG) and chirp fiber Bragg grating (CFBG) are used for wavelength selection. Based on gain equalization technology, by finely adjusting the stress device in the cavity, the gain and loss are equal, so as to suppress the modal competition and achieve multi-wavelength lasing at room temperature. The experimental results show that the laser can output stable multi-wavelength lasers simultaneously. The laser coupling loss is small, the structure is simple, and it is convenient for integration, so it can be widely used in dense wavelength division multiplexing (DWDM) system and optical fiber sensors.
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This work has been supported by the National Natural Science Foundation of China (Nos.61205068 and 61475133), the Natural Science Foun-
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