利用游标卡尺原理实现的单偏振掺铒光纤激光器

Abstract

A compact single-polarization fiber laser with fiber Bragg gratings inscripted in a polarization-maintaining erbium-doped germanosilicate fiber is demonstrated experimentally. The single-wavelength and singlepolarization regime of our studied laser is achieved by applying a radial stress upon one of two gratings and stretching the other one axially to adjust the reflection peak match. Two single-wavelength and singlepolarization lasing lines are realized respectively with fine power stability.

Tunable erbium doped fiber ring laser using fiber Bragg grating-assisted add-drop filter

“…In this laser design, a FBG-A-ADF acts as a wavelength-selective filter and an OC to make a ring cavity. Most of the fiber lasers with a ring cavity used FBGs as wavelength selectors reported at present all need an OC [6,10] or complex structure to obtain an all reflecting mirror [11,12]. Compared with those ring cavity lasers, WT-EDFLs using FBG-A-ADF proposed in this paper is simpler and costless, because a ring cavity laser can be obtained without an OC.…”

“…Because fiber Bragg gratings (FBGs) have various advantages over other optical devices such as wavelength-selective nature, fiber compatibility, ease of use and fabrication, and low cost, lots of EDFLs were based on FBGs [3][4][5]. However, most of these methods also have disadvantages of high cost due to the use of optical circulator (OC) [6] or special optical fiber [7], complicated configuration due to the use of cascaded FBGs [4] and difficulty in obtaining uniform and stable power output without help of variable optical attenuator (VOA) [5]. In recent years, fiber Bragg grating-assisted add-drop filter (FBG-A-ADF) has been developed as the development of optical network because of its advantages such as cost effectiveness, simplicity and easy fabrication [8,9].…”

Temperature effect on emission spectra and fluorescence lifetime of the 4I13=2 state of Er3+-doped Gd2SiO5 crystal

“…Recently, with the development of high-power InP laser diode and erbium fiber laser (EFL) in the 1.46−1.6-µm range [1,2] , Er 3+ -doped Gd 2 SiO 5 crystal is considered to be an interesting material to obtain ∼1. 6-µm eyesafe laser based on the resonantly pumping sketch [3] .…”