A novel method to realize multi-wavelength with phase-shifted FBG inscribed in PMF

Zhao, Yu; Xu, Xiaofeng; Li, Y.; Shao, Zhuang; Gao, Jinliang

doi:10.1002/lapl.200510030

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2009

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“…Multi-wavelength fiber lasers have attracted considerable interest for their potential applications in optical test and measurement, optical wavelength-divisionmultiplexing (WDM) communication and sensing systems [1][2][3][4]. The requirements for the multiple wavelength sources include small equal-wavelength spacing, a large number of peaks within broad-band, and high output uniformity over the channels.…”

Section: Introductionmentioning

confidence: 99%

Multi-wavelength erbium-doped fiber laser assisted by four-wave mixing effect

et al. 2009

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Multi-wavelength erbium-doped fiber laser (EDFL) is demonstrated using a piece of a bismuth-based erbium-doped fiber (Bi-EDF) in a simple ring resonator. The proposed EDFL is able to generate up to 17 lines with a constant channel spacing of 0.41 nm at 1615.5 nm region using only a piece of 215 cm long of Bi-EDF as both linear and nonlinear gain medium. However, the number of lines reduces to two with the use of 49 cm long of Bi-EDF. The multi-wavelength generation is due to oscillating Bi-EDF laser lines which interacts each other to create new photons at other frequency via four-wave mixing process. The multi-wavelength EDFL is stable at room temperature and also compact due to use of only a very short length of gain medium.

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Section: Introductionmentioning

confidence: 99%