Study of frequency conversion process of two optically transmitted signals to p-i-n photodiodes

Малышев, С. А.; Galwas, B.A.; Chizh, A.; Dawidczyk, Jarosław; Andrievski, V.F.

doi:10.1109/mikon.2004.1358503

Cited by 4 publications

(2 citation statements)

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“…The principle of frequency mixing of two modulated optical signals in the PIN-PD is mainly identified by the voltage dependence of the PD responsivity under the condition of nonzero load resistance. 32 To achieve opto-electrical mixing, the PIN-PD detects the first optical signal and generates a photocurrent. The electrical spectrum of the IF or RF signal is shown in Fig.…”

Section: Pin-pd Performancementioning

confidence: 99%

“…On the other hand, the PIN-PD is ideal and handles both single-mode and multimode optical signals. To fulfill an effective frequency mixing, a PIN-PD should have an elevated responsivity under a reverse-bias voltage and a sharp knee of the responsivity–voltage characteristic 32 . The optical signal, modulated by an optical MZM at the IF frequency of 0.5 GHz is injected at the PIN-PD input at the wavelength of 1545 nm as shown in Fig.…”

Section: Pin-pd Performancementioning

confidence: 99%

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Quadrature amplitude modulation frequency up- and down-conversions using a positive-intrinsic-negative photodiode sampling mixer

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Mansour

2022

Opt. Eng.

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. Simulation and experimental performance analysis of a positive-intrinsic-negative photodiode (PIN-PD) sampling mixer used as frequency up and down-converters are presented. Besides, a frequency mixing with a PIN-PD can operate in a frequency range up to 47.3 GHz for up-conversion and 38.5 GHz for down-conversion. The design and operating regime peculiarities of a PIN-PD as an up and down-converter in a radio over fiber (RoF) system are also discussed. The conversion gain of a PIN-PD sampling mixer is simulated and measured. We showed that the gain may decrease from 27 dB at a mixing frequency of 8.3 GHz to 3 dB at the one with 47.3 GHz in an up-conversion mode and from 26.5 dB at 31.7 GHz to 7 dB at 38.5 GHz in a down-conversion mode, when the PIN-PD bias voltage was 0 V. The conversion gain degrades with the decrease of the bias voltage from 0 to −5 V. Error vector magnitudes (EVMs) of the quadratic amplitude modulation (M-QAM) up and down-converted signals are investigated. Quadrature phase shift keying (QPSK) data at bit rates between 312.5 Mbit / s and 5 Gbit / s are frequency-converted. The EVM is used a performance index to assess the mixing system. Exploitable EVMs in the range of 15% up to 34.9% are reached for up-conversion of the mixing frequency. For down-conversion, the EVM varies from 20% to 34.9% at 5 Gbit / s over the whole frequency range. The EVM of mixed signals is improved with 16-QAM and 64-QAM modulations.

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Section: Pin-pd Performancementioning

confidence: 99%

Section: Pin-pd Performancementioning

confidence: 99%