𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Single-longitudinal-mode dual-wavelength fiber ring laser by incorporating variable saturable absorbers and feedback fiber loops

✍ Scribed by Junqiang Sun; Xiuhua Yuan; Xinliang Zhang; Dexiu Huang

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
377 KB
Volume
273
Category
Article
ISSN
0030-4018

No coin nor oath required. For personal study only.

✦ Synopsis

A single-longitudinal-mode dual-wavelength fiber ring laser is proposed and demonstrated experimentally by introducing feedback fiber loops and a variable saturable absorber in a fiber ring cavity. A dynamic ultra-narrow bandpass filter is formed by the combined interactions of cascaded fiber Bragg gratings, feedback fiber loops and low-pumped erbium-doped fiber. Both ultra-narrow bandpass filter and accurate control for the cavity length are not required for the single-longitudinal-mode performance. The proposed scheme offers a possibility of generating terahertz waves by photomixing the lasing wavelengths in a high-speed photodetector.

πŸ“œ SIMILAR VOLUMES

Using optimal cavity loss and saturable-
Using optimal cavity loss and saturable-absorber passive filter for stable and tunable dual-wavelength erbium fiber laser in single-longitudinal-mode operation
✍ C.H. Yeh; C.W. Chow; Y.F. Wu; Y.H. Lin; B.C. Cheng; J.H. Chen πŸ“‚ Article πŸ“… 2011 πŸ› John Wiley and Sons 🌐 English βš– 182 KB

In this investigation, we propose and demonstrate experimentally tunable and stable dual-wavelength erbium doped fiber (EDF) double-ring laser scheme using different coupling losses inside cavity loop for wavelength and mode spacing tuning. Besides, a shorter unpumped EDF is also used to filter the