Theoretical Study of Er3+-Doped Tellurite-Based Upconversion Fiber Laser

Yaxun, 周亚训 Zhou; Fen, 陈芬 Chen; Gaobo, 杨高波 Yang

doi:10.3788/cjl20093607.1894

Cited by 3 publications

(1 citation statement)

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“…With the development of fiber technology, the erbium-doped fiber amplifier (EDFA) technology has been widely used in fiber communication system, and some filtering technologies are reported about how to realize multi-signal power equalization [1][2][3][4]. Contrary to the EDFA inhibiting fluorescence, the erbium-doped fiber amplified spontaneous emission (ASE) source (also can be called super-fluorescent fiber source) make full use of the fluorescence, and make this kind light become super-fluorescence by amplifying the spontaneous emission.…”

Section: Introductionmentioning

confidence: 99%

Flattening the Spectrum of Erbium-Doped Fiber ASE Source Combining with LPFG-Based Filter Technique

Wang

Yan

Han

et al. 2013

AMR

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Through studying the basic principle of super-fluorescent fiber source and combining with internal and external gain flattening technique, the spectral flatness of erbium-doped fiber amplified spontaneous emission (ASE) source with two-stage double-pass configuration pumped by two laser diodes (LDs) is improved. By optimizing the lengths of two-stage erbium-doped fiber (EDF) and adjusting the pump power of two LDs,the powers of C-band and L-band are matching, and the spectral flatness is superior to 0.5dBm from 1535 to 1610 nm. Utilizing the long period fiber grating (LPFG)-based thermally-insensitive gain flattening filter (GFF) fabricated by ourselves, the spectral protrusion is flattened near the peak of absorption wavelength of EDF, which make the spectrum not only cover the range of C-band and L-band, also realize the spectral flatness is better than 0.8dBm in the range of 3dB bandwidth. Application of the fiber ASE source in fiber Bragg grating sensing system could decrease the multi-signal peak power imbalance.

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Section: Introductionmentioning

confidence: 99%