Optical direct intensity modulation of a 79GHz resonant tunneling diode-photodetector oscillator

Zhang, Weikang; Watson, Scott; Figueiredo, J. M. L.; Wang, Jue; Cantú, H.I.; Tavares, Joana S.; Pessoa, L. M.; Al-Khalidi, Abdullah; Salgado, H. M.; Wasige, Edward; Kelly, Anthony E.

doi:10.1364/oe.27.016791

Cited by 14 publications

(14 citation statements)

References 19 publications

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“…Indeed, RTD-PDs are thought to be potential candidates for the low-cost integration of radio and fibre networks. In this section we discuss the RTD-PD oscillator capabilities for operating as optical-to-microwave transceivers in wireless data link [101,102]. The concept of the RTD-PD optical to wireless data link is illustrated in Figure 4.10.…”

Section: Optical Controlled High-frequency Rtd-pd Oscillatorsmentioning

confidence: 99%

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Resonant Tunneling Diode Photonics

Ironside

Romeira

Figueiredo

2019

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Optical communication systems relying on microwave/millimetre-wave-optical transducers are fundamental to the development of applications such as low-cost fibre-optic communication networks, radio-over-fibre wireless communications, and radio phased array antennas. Those systems require the use of very fast optical modulators[72] since laser diodes cannot be directly modulated at frequencies beyond their resonance frequency which is typical below few tens of gigahertz [73]. In this chapter we cover our work on low driving voltage highspeed and highly efficient electrical active electro-absorption modulators (EAMs). The EAM is based on the integration of a double barrier quantum well (DBQW) structure within AlGaAs/GaAs and InGaAlAs/InGaAs unipolar semiconductor optical waveguides and operates at the optical windows corresponding to wavelengths around 900 nm, 1300 and 1550 nm. This novel device is known as resonant tunnelling diode electro-absorption modulator (RTD-EAM).

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Section: Optical Controlled High-frequency Rtd-pd Oscillatorsmentioning

confidence: 99%

“…It was also possible to demonstrate Quadrature Phase Shift Keying (QPSK) with a similar set-up and to demonstrate data rates up to 200Mbit/s. Subsequent work [102] has operated with higher carrier frequencies up 79 GHz and data rates of 50 Mbits/s.…”

Section: Optical Controlled High-frequency Rtd-pd Oscillatorsmentioning

confidence: 99%

Resonant Tunneling Diode Photonics

Ironside

Romeira

Figueiredo

2019

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“…In addition, RTDs are considered to be the fastest solid-state electronic devices at room temperature [ 9 ] thanks to the ultra-fast quantum mechanical resonance tunneling effect. To date, RTD-based devices have been developed and applied in several significant application scenarios, including high-bandwidth optical [ 10 , 11 ] and sub-THz wireless communications [ 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…This makes such RTD-PD devices competitive candidates for adoption in energy-efficient optical neuromorphic networks. Besides, RTD-PD oscillators utilizing such RTD-PD devices have been implemented for optical data transmissions in previous work [ 11 ]. Thus, this work signposts the potential for applying RTD-PDs for stochastic spike generation and optical data transmission simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Excitability in Resonant Tunneling Diode-Photodetectors

et al. 2021

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We investigate the dynamic behaviour of resonant tunneling diode-photodetectors (RTD-PDs) in which the excitability can be activated by either electrical noise or optical signals. In both cases, we find the characteristics of the stochastic spiking behavior are not only dependent on the biasing positions but also controlled by the intensity of the input perturbations. Additionally, we explore the ability of RTD-PDs to perform optical signal transmission and neuromorphic spike generation simultaneously. These versatile functions indicate the possibility of making use of RTD-PDs for innovative applications, such as optoelectronic neuromorphic circuits for spike-encoded signaling and data processing.

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“…Another important research line treats the application of photosensitive resonant tunneling structures [26][27][28]. A resonant tunneling diode (RTDs) has outstanding response speed characteristics, but typical RTD-based photodetectors are characterized by the external configuration of absorption region with respect to a quantum well nanoheterostructure, due to their microwave applications.…”

Section: Introductionmentioning

confidence: 99%

Photodetector with Controlled Relocation of Carrier Density Peaks: Concept and Numerical Simulation

Pisarenko

Ryndin

2020

Photonics

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Modern electronics faces the degradation of metal interconnection performance in integrated circuits with nanoscale feature dimensions of transistors. The application of constructively and technologically integrated optical links instead of metal wires is a promising way of the problem solution. Previously, we proposed the advanced design of an on-chip injection laser with an AIIIBV nanoheterostructure, and a functionally integrated optical modulator. To implement the efficient laser-modulator-based optical interconnections, technologically compatible photodetectors with subpicosecond response time and sufficient sensitivity are required. In this paper, we introduce the concept of a novel high-speed photodetector with controlled relocation of carrier density peaks. The device includes a traditional p-i-n photosensitive junction and an orthogonally oriented control heterostructure. The transverse electric field displaces the peaks of electron and hole densities into the regions with low carrier mobilities and lifetimes during the back edge of an optical pulse. This relocation results in the fast decline of photocurrent that does not depend on the longitudinal transport of electrons and holes. We develop a combined numerical model based on the Schrodinger-Poisson equation system to estimate the response time of the photodetector. According to the simulation results, the steep part of the photocurrent back edge has a duration of about 0.1 ps.

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Optical direct intensity modulation of a 79GHz resonant tunneling diode-photodetector oscillator

Cited by 14 publications

References 19 publications

Resonant Tunneling Diode Photonics

Resonant Tunneling Diode Photonics

Analysis of Excitability in Resonant Tunneling Diode-Photodetectors

Photodetector with Controlled Relocation of Carrier Density Peaks: Concept and Numerical Simulation

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