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A novel measurement system based on an integrated-optic modulator has been used to determine the frequency response of a high-speed GaInAs photodiode. A nominally 8 GHz bandwidth modulator provided a 3μW levelled, continuously tunable, modulated optical signal to greater than 21 GHz. The measured detector 3dB bandwidth was 19.2 ± 0.8 GHz.
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David A. Humphreys (1989) studied this question.
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