Frequency spurious aversion by minimal reverse bias selection of a high-speed optically triggered sampling circuit based on a positive–intrinsic–negative photodiode

Villa, Cristiano; Hernandez, Iván Olaf; Villa, Rafael; Donkor, Eric

doi:10.1364/ao.51.005412

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…This PIN-PD has a reverse saturation current I sat = 0.2 nA and responsivity ℜ was 0.95 A/W at a wavelength of 1550 nm. To ensure a range of linear excursions for the peak-to-peak voltage input signal V RF (t), an operation point for the PIN-PD can be strategically selected [18][19][20]. For example, For the shown operation point, k = 23.4977 is calculated from I d = −I sat (e kV d -1) + I ph , where I ph = P ℜ is the photogenerated current.…”

Section: Analysis and Modelingmentioning

confidence: 99%

Characterization of a high-speed radio-frequency sampling and demultiplexing circuit based on the cascade connection of pin photodiodes

Angulo¹,

Hernandez-Fuentes²,

Morales-Carbajal³

et al. 2019

Turk J Elec Eng & Comp Sci

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Herein, we apply theoretical models to characterize the transfer function and frequency response of a complex optoelectronic circuit that comprises a primary ultrafast sampling circuit followed by a cascade connection of N demultiplexing stages. The successive radio-frequency optoelectronic samplers were based on the cascade connection of positive-intrinsic-negative-photodiodes (PIN-PDs). We developed a procedure to calculate the principal design parameters that allows us to use optical power for each sampling and demultiplexing stage, such that the circuit can be designed based on the application requirements. The results obtained from the theoretical models were compared with the measurements obtained from the 2.5 GS/s sampling circuit connected in cascade with a 1.25 GS/s and a 625 MS/s demultiplexing circuit implemented using commercial PIN-PDs

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Section: Analysis and Modelingmentioning

confidence: 99%

Characterization of a high-speed radio-frequency sampling and demultiplexing circuit based on the cascade connection of pin photodiodes

Angulo¹,

Hernandez-Fuentes²,

Morales-Carbajal³

et al. 2019

Turk J Elec Eng & Comp Sci

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show abstract

“…If a portion of the switched signal penetrates the forward region a nonlinear distortion will appear [14]. Different techniques to select an appropriated dc V bias to prevent this nonlinear distortion have been previously reported [15,16]. On the other hand, in the switching circuit, the reverse biased PIN-PD acts as a fast normally off switch where the On state is established by light impinging on its photosensitive surface.…”

Section: Introductionmentioning

confidence: 99%

Frequency equivalent circuits for the on and off state of an optically triggered switch based on a PIN photodiode

Hernandez-Fuentes¹,

Villa-Angulo²,

Ramirez-Zarate³

et al. 2018

Turk J Elec Eng & Comp Sci

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In this work we have developed equivalent circuit models for the frequency response of an optically triggered switch based on a positive-intrinsic-negative photodiode (PIN-PD) for the On state (light applied to the PIN-PD) andthe Off state (without applying light to the PIN-PD). From measurements it was found the frequency response in Off state behaves as a high-pass filter whereas in the On state as a low-pass filter; this means that depending on the input signal frequency there could be an approach or even an overlap between the output amplitude in the On and in the Off state. The developed models allow the calculation of the highest permissible frequency in the input signal to avoid distortion due to overlap of the On and Off state response, and the models take into account circuit parameters such as bias voltage, load resistance, resistance, and capacitance of PIN-PD, which in turn depend on the operating point and the desired linear range for the input's amplitude. Experimental measurements of the frequency response were made in both conditions (On and Off state) using three commercial photodiodes of bandwidth higher than 1 GHz. The measured frequency response as well as amplitude separation between the On and Off states to avoid the overlap is very well matched by the calculated results. Although the tests were performed for photodiodes with 1 GHz bandwidth, the technique can be applied for photodiodes with higher bandwidth.

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Linear Operation Range for an Optically Triggered Switch Based on a p-i-n Photodiode

Hernandez-Fuentes

Villa-Angulo

et al. 2014

IEEE Photon. Technol. Lett.

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Frequency spurious aversion by minimal reverse bias selection of a high-speed optically triggered sampling circuit based on a positive–intrinsic–negative photodiode

Cited by 3 publications

References 9 publications

Characterization of a high-speed radio-frequency sampling and demultiplexing circuit based on the cascade connection of pin photodiodes

Characterization of a high-speed radio-frequency sampling and demultiplexing circuit based on the cascade connection of pin photodiodes

Frequency equivalent circuits for the on and off state of an optically triggered switch based on a PIN photodiode

Linear Operation Range for an Optically Triggered Switch Based on a p-i-n Photodiode

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