Performance comparisons between PIN and APD photodetectors for use in optical communication systems

Kharraz, Osayd M.; Forsyth, David I.

doi:10.1016/j.ijleo.2012.04.008

Cited by 70 publications

(35 citation statements)

References 4 publications

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“…Its usage is rather limited due to its unity gain: only one electron is generated for each detected photon, which bounds its signal-to-noise ratio (SNR). Since conventional PIN photodiodes are much easier and cheaper to fabricate than other technologies and highly reliable all the time [78], they are used in very price-sensitive applications where gain is not a critical factor, such as timers in pulsated lidar [79]. Its bandwidth is up to 10 GHz [78].…”

Section: 3d Reconstruction Methods For Active Optical Sensorsmentioning

confidence: 99%

State of the Art of Underwater Active Optical 3D Scanners

Castillón

Palomer

Forest

et al. 2019

Sensors

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Underwater inspection, maintenance and repair (IMR) operations are being increasingly robotized in order to reduce safety issues and costs. These robotic systems rely on vision sensors to perform fundamental tasks, such as navigation and object recognition and manipulation. Especially, active optical 3D scanners are commonly used due to the domain-specific challenges of underwater imaging. This paper presents an exhaustive survey on the state of the art of optical 3D underwater scanners. A literature review on light projection and light-sensing technologies is presented. Moreover, quantitative performance comparisons of underwater 3D scanners present in the literature and commercial products are carried out.

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Section: 3d Reconstruction Methods For Active Optical Sensorsmentioning

confidence: 99%

State of the Art of Underwater Active Optical 3D Scanners

Castillón

Palomer

Forest

et al. 2019

Sensors

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“…The calculation of N voltage is based on Equation (4), where N 2 is obtained from Equation (3) and f p2 are obtained from Equation (5). Then the N voltage can be rewritten as Equation (6), The total sum of C j , C in , and C f is C tot or C t in Farad.…”

Section:   mentioning

confidence: 99%

Noise Analysis of Trans-impedance Amplifier (TIA) in Variety Op Amp for use in Visible Light Communication (VLC) System

Putra¹,

Aska²,

Adiono³

2018

IJECE

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VLC is a complex system with lots of challenges in its implementation. One of its problems is noise that originated from internal and external sources (sunlight, artificial light, etc). Internal noise is originated from active components of analog front-end (AFE) circuit, which will be discussed in this paper, especially on the trans-impedance amplifier (TIA) domain. The noise characteristics of AFE circuit in VLC system has been analyzed using the variety of available commercial Op Amp and different types of the photodiode (Si, Si-PIN, Si APD). The approach of this research is based on analytical calculus and simulation using MATLAB®. The results of this research show that the main factor that affecting the noise is en, the feedback resistor (Rf), and junction capacitor in the photodiode (Cj). Besides that, the design concept of multi channel TIA (8 channel) using IC Op Amp, with consideration of pin number of each Op Amp, supply needs, the initial value of Rf, converter to 8-DIP and feedback capacitor (Cf) channel, also discussed in this paper.

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“…As a result of the detection of the laser echo is a weak signal, the photoelectric detector has been needed with high sensitivity and fast response. So we chose the APD with the internal gain to receive the optical signal, it has the advantages of high bandwidth, low noise, wide dynamic range, good reliability, fast response [10]. In the whole system, the laser wavelength is 1550 nm.…”

Section: Apd Photoelectric Detectormentioning

confidence: 99%