Tunable Fiber Laser Using a Broad-Band Fiber Mirror and a Tunable FBG as Laser-Cavity Ends

Eye-diagram and Q factor evaluation of fiber ring laser in lightwave transmission

“…Therefore, the unpumped EDF is an important component to keep the high quality operation in fiber lasers. To further verify the high quality operation at different wavelengths under the same FBG, we use a strain tunable FBG, which offers a wavelength tuning as same as the one shown in our previous works [12,15]. We tuned the central wavelength from 1541.03-to 1547.4 nm, and the measured eye-diagram was shown in Fig.…”

Discretely tunable fiber ring laser using FBG tunable filter and Mach‐Zehnder interferometer

“…These results will be useful for applications such as WDM, especially in applications which require close wavelength spacing. Recently, SiGe HBT ultra-wideband (UWB) systems have attracted a lot of attention because they are capable of high data-rate transmission with low power consumption [1][2][3][4]. UWB LNA is a critical block in UWB receiver front-end design.…”

“…Several wavelength-tuning techniques have been reported for fiber lasers [1][2][3][4][5][6][7][8][9][10][11][12], such as the use of tunable fiber Bragg gratings (FBG) [1][2][3], wavelength-tunable double-ring fiber laser [5], tunable dual or single-wavelength fiber lasers employing external optical injection [6,7], fast tuning fiber laser with outstanding quality [8], and Sagnac loop filter based fiber lasers [10].…”

Tunable Erbium-Doped Fiber Lasers Using Various Inline Fiber Filters

“…FBGs have become an enabling technology that provides convenient, cost-effective, and reliable solutions to a multitude of design problems in fiber module. Using a backward pump scheme at 1480 nm in [11], stable lasing output power of 21.14-mW measured at 1544.8 nm was obtained with a threshold pump power of 8.0 mW. A side-mode suppression ratio as high as 57 dB, wavelength tuning range up to 30 nm with a step resolution of 0.5 mm/turn, and power variation less than 1.0 dB were achieved.…”

“…The first kind is the FBG-based linear-cavity tunable fiber laser using an optical circulator (OC) [10], or a broadband fiber mirror (BFM) [11] as rear cavity end while the front cavity end is based on tunable FBGs (TFBGs) which could be tuned by applying strain. FBGs have become an enabling technology that provides convenient, cost-effective, and reliable solutions to a multitude of design problems in fiber module.…”