An erbium-doped fiber laser is demonstrated using an erbium-doped fiber loop and a fiber grating. The no¨el ca¨ity configuration enables both a short ca¨ity length and easy tunability to be achie¨ed simultaneously. A maximum output power of ) 400 W has been achie¨ed, and single longitudinal mode ope
Single-frequency linear cavity erbium-doped fiber laser for fiber-optic sensing applications
✍ Scribed by Z.H. Fu; Y.X. Wang; D.Z. Yang; Y.H. Shen
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 64 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1612-2011
No coin nor oath required. For personal study only.
✦ Synopsis
We report a short-cavity fiber laser configured with a high-concentration erbium-doped fiber with stable singlefrequency output. The fiber laser utilized a fiber Bragg grating inscribed into a piece of polarization-maintaining optical fiber as the output coupler to ensure a stable single frequency laser output. The polarization-maintaining optical fiber used in the output coupler is intended to provide the linearly polarized singlefrequency laser output. The fiber laser had a maximum hundreds of micron-Watt level power output pumped by a fiber pigtailed laser diode working at 980 nm. Mode hopping phenomenon was eliminated in such a short-cavity fiber laser. Laser frequency stability less than 400 MHz over 10 minutes was obtained.
📜 SIMILAR VOLUMES
## Abstract A simple and switchable triple‐wavelength erbium‐doped fiber laser (EDFL) with a linear laser cavity is proposed and experimentally demonstrated. In the experiment, by changing the state of polarization (SOP) inside the laser cavity through a polarization controller (PC), stable single,
## Abstract A simple and efficient L‐band multiwavelength linear cavity fiber laser was obtained at room temperature by recycling detrimental 1550‐nm band amplified spontaneous emission as a secondary pump source for the unpumped EDF section of fiber laser. The cavity was formed by two linear fiber
## Abstract The transient characteristics of an erbium‐doped fiber (EDF) laser, which can switch between wavelengths, are investigated. The laser has a set of coupled linear cavities. The slow gain dynamics of EDFs and the cross‐gain saturation in the coupled cavities give rise to delayed switching
## Abstract To stabilize the frequency, a structure with fiber seed laser plus fiber amplifier module is designed. Using only one laser diode simultaneously pumps fiber amplifier and laser through a coupler with special ratio. Single‐frequency fiber laser with high‐output power and low‐noise is ach
We report a novel-principle fiber-laser intra-cavity sensor for measuring refractive index and solute concentration of aqueous solutions. The sensor operation is based on a variation of the laser oscillation relaxation frequency (the measured parameter), sensitive to the intra-cavity loss change. Th