منابع مشابه
Improved Design of a DFB Raman Fibre Laser
A Raman fibre laser based on phase shifted DFB structures is modelled for the first time. Using parameters of realistic devices, the model predicts low-threshold and highly-efficient laser output. The change of position and width of the phase shift were found to have a substantial impact on laser performance.
متن کاملDesign Considerations for a Dfb Fibre Laser Based High Sensitivity Broadband Hydrophone
Over the last three decades extensive research has been carried out towards the design and development of fibre optic hydrophones. The inherent advantages of fibre optic sensing technology, like high sensitivity, immunity to electromagnetic interference, intrinsic safety to water leakage, remote measurement capability etc. makes it an ideal choice for underwater acoustic sensing[1, 2]. The init...
متن کاملDistributed feedback photonic crystal fibre (DFB-PCF) laser.
A distributed feedback laser is fabricated in Er3+-doped photonic crystal fibre. Preferential single-mode lasing is obtained with no special consideration of polarisation issues. The results demonstrate practical implementation of a multi-photon writing process for complex structures in these optical fibres. No hydrogen loading and no germanium are involved.
متن کاملMutual injection locking of a fibre laser and a DFB semiconductor laser - Electronics Letters
ing that this power level causes little SHB. When the current is increased to 70mA (‘17ns’), the SHB increases. After the mode change (‘3011s’) the carrier density is highly asymmetric, with a large build-up of carriers at the rear facet. Further simulations showed that the time between the second transient and the onset of the mode change decreases when the drive current is increased, possibly...
متن کاملCharacterisation of random DFB Raman laser amplifier for WDM transmission.
We perform a full numerical characterisation of half-open cavity random DFB Raman fibre laser amplifier schemes for WDM transmission in terms of signal power variation, noise and nonlinear impairments, showcasing the excellent potential of this scheme to provide amplification for DWDM transmission with very low gain variation.
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ژورنال
عنوان ژورنال: Optics Communications
سال: 2009
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2009.05.038