1999
DOI: 10.1109/68.784238
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Resonant-cavity InGaAs-InAlAs avalanche photodiodes with gain-bandwidth product of 290 GHz

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Cited by 140 publications
(60 citation statements)
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“…Since this ratio is a material property, for a given electric field, efforts to improve the APD performance have focused on optimizing the electric field profile and characterizing new materials. Recently, lower multiplication noise and higher gainbandwidth products have been achieved by sub micrometer scaling of the thickness of the multiplication region [4][5][6][7][8][9][10][11][12]. This is in direct contrast to what would have been predicted by the local-field model and is due to the nonlocal nature of impact ionization, which can be neglected if the thickness of the multiplication region is much greater than the "dead length", the distance over which carriers gain sufficient energy to impact ionize.…”
Section: Introductioncontrasting
confidence: 43%
“…Since this ratio is a material property, for a given electric field, efforts to improve the APD performance have focused on optimizing the electric field profile and characterizing new materials. Recently, lower multiplication noise and higher gainbandwidth products have been achieved by sub micrometer scaling of the thickness of the multiplication region [4][5][6][7][8][9][10][11][12]. This is in direct contrast to what would have been predicted by the local-field model and is due to the nonlocal nature of impact ionization, which can be neglected if the thickness of the multiplication region is much greater than the "dead length", the distance over which carriers gain sufficient energy to impact ionize.…”
Section: Introductioncontrasting
confidence: 43%
“…Lenox et al [11] measured the frequency response of a pair of similar, separate absorption, charge and multiplication APDs with In Al As multiplication regions of length m and m. We have fitted their measured values of gain-bandwidth product to (1) to obtain an effective value of mean carrier velocity for each device. was calculated using the expression of Kuvås and Lee [8], valid for large values of gain and conveniently independent of carrier velocities, using values for the ionization coefficients ratio taken from the work of Watanabe et al [12].…”
Section: Comparison With Experimentsmentioning
confidence: 99%
“…Extremely high BWE values are achieved using Schottky, p-type-intrinsic-n-type (p-i-n), and an avalanche type of RCE-PDs, which could not be reached with conventional VPD structures. 100-GHz bandwidth [6] and 25-GHz BWE [7] for Schottky, 46-GHz BWE [8] for p-i-n, 35-GHz low-gain bandwidth, [9] and 17-GHz BWE [10] for avalanche type of RCE-PDs are the record performances reported to date.…”
Section: Introductionmentioning
confidence: 99%