Average inversion level, modeling, and physics of erbium-doped fiber amplifiers

Sun, Yan; Zyskind, J.L.; Srivastava, Atul

doi:10.1109/2944.649527

Cited by 172 publications

(93 citation statements)

References 44 publications

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“…As the cavity loading increases (gap width decreases), the loaded signal quality factor decreases and therefore the normalized erbium upperstate population increases (favoring the possibility of shorter wavelength lasing). It is well known that the peak gain wavelength [29] and the corresponding lasing wavelength are determined by the normalized erbium upper-state population. In Sec.…”

Section: A Upper-state Population Of Erbium Ions In Microcavitymentioning

confidence: 99%

Erbium-implanted high-Qsilica toroidal microcavity laser on a silicon chip

et al. 2004

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Lasing from an erbium-doped high-Q silica toroidal microcavity coupled to a tapered optical fiber is demonstrated and analyzed. Average erbium ion concentrations were in the range 0.009-0.09 at. %, and a threshold power as low as 4.5 W and an output lasing power as high as 39.4 W are obtained from toroidal cavities with major diameters in the range 25-80 m. Controlling lasing wavelength in a discrete way at each whispering-gallery mode was possible by changing the cavity loading, i.e., the distance between the tapered optical fiber and the microcavity. Analytic formulas predicting threshold power and differential slope efficiency are derived and their dependence on cavity loading, erbium ion concentration, and Q factor is analyzed. It is shown that the experimental results are in good agreement with the derived formulas.

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Section: A Upper-state Population Of Erbium Ions In Microcavitymentioning

confidence: 99%

Erbium-implanted high-Qsilica toroidal microcavity laser on a silicon chip

et al. 2004

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“…However, excited-state absorption and ion-pair interaction are known to produce much faster nonlinear loss contributions [39]. In addition, it has been pointed out that multiple passes through optical amplifiers, despite the slow transient responses of the individual element, are able to trigger fast transients as a result of cascading of the slow transient response of the individual amplifier [40]. In a cavity, such a phenomenon is fully exacerbated, so that slow dynamics such as gain transient effects are known to significantly affect the formation of ultrashort pulse structures down to the picosecond time range [41].…”

Section: Modeling Vector Dynamics With Coupled Ginzburg-landau Eqmentioning

confidence: 99%

Dynamics of the transition from polarization disorder to antiphase polarization domains in vector fiber lasers

2014

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We demonstrate that nonlinear polarization coupling in a fiber ring laser without polarization-selective elements, subject to the effects of average anomalous dispersion, Kerr effect, and nonlinear gain saturation, can lead to the antisynchronization of spatiotemporal chaos into a wide variety of ordered laminar states of orthogonal polarization temporal domains. These antiphase polarization domains include stable lattices of soliton trains with high duty cycle at repetition rates of hundreds of MHz, as well as sparse trains of coupled dark and bright solitary waves.

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“…The main issue in SFS is the phenomena of amplified spontaneous emission which occur in Er-doped fiber oscillator [45][46][47][48][49]. The erbium in the doped fiber acts as three level laser system.…”

Section: Operation Of Superfluorescent Fiber Sourcesmentioning

confidence: 99%

Development of 3.6 mW Er- doped C-band super fluorescent fiber source pumped at 980 nm

Rao¹

2013

Opt. Pura Apl.

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ABSTRACT:A 3.6mW single pass backward signal superfluorescent fiber source having a spectral width of 27.417nm was developed at a pump wavelength of 980.5nm and presented the experimental results along with non-flattened ASE spectrum. The fiber source could have direct applications in fiber sensors like fiber gyroscope or, in general, in any optical sensors in which a broad spectral band and high power source are required.

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Average inversion level, modeling, and physics of erbium-doped fiber amplifiers

Cited by 172 publications

References 44 publications

Erbium-implanted high-Qsilica toroidal microcavity laser on a silicon chip

Erbium-implanted high-Qsilica toroidal microcavity laser on a silicon chip

Dynamics of the transition from polarization disorder to antiphase polarization domains in vector fiber lasers

Development of 3.6 mW Er- doped C-band super fluorescent fiber source pumped at 980 nm

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