Transport optimisation in PIN photodiodes using mixed depletion region

Aissat, A.; Besseghi, M. El; Decoster, D.

doi:10.1080/21681724.2014.917713

Cited by 3 publications

(1 citation statement)

References 10 publications

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“…The results showed that the photodiodes having mixed depletion regions are faster than photodiodes whose depletion region is completely absorbent for the same thickness [11]. The pure transit cut-off frequency of optimized mixed depletion regions exceeds by 67% that of completely absorbent depletion regions for the same thickness of depletion region.…”

Section: Transit Response Of Mixed Deplition Regionsmentioning

confidence: 96%

Improvements of photodiodes structures for communication applications

Aissat

Besseghi

Bey

et al. 2015

2015 Third World Conference on Complex Systems (WCCS)

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Photogenerated carriers in a photodiode drift in the junction before joining the circuit. We must use a quite thin depletion region so that their transit time does not penalize the microwave response of the devices. However, when the depletion region decreases the component capacity increases, which highly limits the microwave response of this latter. Replace the completely absorbent depletion region by a mixed depletion region increases the pure transit cut-off frequency for the same thickness of the depletion region. We use this property in what follows to optimize the performance of PIN photodiode based on InP/InGaAs, adapted for the photodetection at the wavelength of 1.55 μm. The obtained results show that the maximum area of photodiodes with mixed depletion regions with thin absorbent exceeds by 64% that of the photodiodes with completely absorbent depletion regions for the same bandwidth. Their maximum absorption volume exceeds by 8% that of the photodiodes with completely absorbent depletion regions for the same bandwidth. Both types of components are also compared on the abacuses when the thickness of the absorbent and the surface are imposed.

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Section: Transit Response Of Mixed Deplition Regionsmentioning

confidence: 96%