A multi-wavelength fiber laser based on superimposed fiber grating and chirp fiber Bragg grating for wavelength selection

作者：Wang Feng; Bi Wei hong^*; Fu Xing hu; Jiang Peng; Wu Yang

来源：Optoelectronics Letters, 2015, 11(6): 418-420.

DOI：10.1007/s11801-015-5189-5

• Chirp fiber Bragg grating
• Dense wavelength division multiplexing systems
• Gain equalization
• Multi wavelength fiber laser
• Multi-wavelength lasers
• Multiwavelength lasing
• Super-imposed fiber gratings
• Wavelength selection

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.

• 出版日期2015