Phase-locking of an InP/InGaP/InGaAs resonant tunneling diode relaxation oscillator by direct optical injection

Optical Characteristics Analysis of Resonant Tunneling Diode Photodiode Based Oscillators

“…The results are identical with the individual RTD-PD device, and also have been observed in [15]. The mechanism is that the accumulation of electron-hole pairs in the depletion region generated by the light decreases the bias across the RTD structure whose capacitance is increased accordingly [9], leading to the decrease of frequency.…”

“…300-GHz wireless transmission at data rate of 2.5 Gbit/s at 1 meter transmission distance has been reported using electronic RTDs [4,5]. It is still novel to implement high speed RTD based oscillators in optical communication as a photodetector even though intensive works have been done in the area of optoelectronics based on RTD devices such as opto-modulator [6,7], RTD-photosensor [8] and optical injection locking experiments [9][10][11].…”

Resonant Tunneling Diode Optoelectronic Circuits Applications in Radio-Over-Fiber Networks

“…Relaxation oscillators [15]- [17] were used in this work as the basis of the Tx and Rx circuits that perform optical to wireless and wireless to optical signal conversion. The oscillators consist of an RTD connected in parallel with a 1-F shunt capacitor.…”

“…It has been demonstrated in [15] and [17] that an RTD can be optically controlled using a beam of light incident on the active epitaxial structure of the device. In this study, the subcarrier of a modulated optical signal with a wavelength of 1550 nm has been used to injection lock the oscillations of the circuits described in Section II.…”

The research of phase-locking of more discharge tubes for two-dimensional axisymmetric-fold combination resonator CO2 laser

“…However the beams from ASFC resonator CO 2 laser are partial-coherent and the energy flux of output beam is dispersed and the spatial characteristic of output beam is poor. Based on the principle of injection-locking, laser with the technique of phase-locking can obtain good quality of output beam [11,12] In the three discharge tube system it has been proved that the reflection beam can realize injection-locking [13], but that we can gain phase-locking when there are even more discharge tubes. In this work we prove that we can get phase-locking for a two-dimension arrangement of five discharge tubes.…”