Research on a Kind of Tunable Carbon Nanotube Mode-Locked Fiber Laser

This paper presents a tunable mode - locked fiber laser that employs a carbon - nanotube - based saturable absorber and a commercially available tunable filter. The operating wavelength of this laser is 1550 nanometers. The erbium - doped fiber (EDF) has a wide gain range, enabling the laser to achieve ultrafast mode - locking. Meanwhile, the tunable filter offers a broad wavelength selection range. The operating wavelength range of the mode - locking technology is from 1532.6 nanometers to 1569.9 nanometers. This tunable mode - locked fiber laser has a simple structure and a wide operating wavelength range. Therefore, it is highly suitable for applications in fields such as optical communication, sensing, and laser processing.