Abstract

A tunable multi-wavelength erbium-doped fiber laser with precise wavelength interval control is reported theoretically and experimentally in this paper. It is made up of a Mach–Zehnder interferometer (MZI) filter and a Sagnac filter and supplemented by the four-wave-mixing effect. Compared with other filters, the proposed MZI filter based on the fused taper technology can change the wavelength interval more flexibly. The experiment result shows that wavelength tuning can be achieved, and the tuning range can reach ∼15 nm. Moreover, the variation in the number of wavelengths is also realized. The maximum side-mode suppression ratio can reach 39 dB.

© 2022 Chinese Laser Press

Tunable and channel spacing precisely controlled comb filters based on the fused taper technology

Mengmeng Han, Xingliang Li, Shumin Zhang, Huiyun Han, Jingmin Liu, and Zhenjun Yang
Opt. Express 26(1) 265-272 (2018)

Abrupt-tapered fiber filter arrangement for a switchable multi-wavelength and tunable Tm-doped fiber laser

B. Ibarra-Escamilla, M. V. Hernández-arriaga, M. Durán-Sánchez, H. Santiago-Hernández, M. Bello-Jiménez, E. Rivera Pérez, L. A. Rodríguez-Morales, and E. A. Kuzin
Opt. Express 26(12) 14894-14904 (2018)

Widely tunable and switchable multiwavelength erbium-doped fiber laser based on a single ring cavity

Jawad Mirza, Salman Ghafoor, Ahmad Atieh, Benish Kanwal, and Khurram Karim Qureshi
J. Opt. Soc. Am. B 39(4) 1118-1129 (2022)

Mach–Zehnder interferometer comb filter for multi-wavelength mode-locked generation from erbium-doped fiber laser

Fay F. Ridha, Abdulhadi Al-Janabi, and Sarah Kadhim Al-Hayali
Appl. Opt. 61(15) 4387-4396 (2022)

High-power multi-wavelength Yb-doped fiber laser with a tunable interval, amplitude, and a number of channels

Sicheng Li, Jiangming Xu, Junrui Liang, Jun Ye, Yang Zhang, Xiaoya Ma, and Pu Zhou
Opt. Lett. 47(16) 4123-4126 (2022)