All-optical switching with a dual-state, single-section quantum dot laser via optical injection

Tykalewicz, Bogusław; Goulding, David; Hegarty, Stephen P.; Huyet, Guillaume; Byrne, Diarmuid; Phelan, Richard; Kelleher, Bryan

doi:10.1364/ol.39.004607

Cited by 35 publications

(21 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There are relatively few existing experimental studies in which one must take into account both the GS and the ES. One example relevant to the work in this Letter is the study of ultrafast switching between the GS and ES induced by injection into the GS when the freerunning operation is ES lasing only [10]. Switching between the GS and the ES has also been reported for the feedback configuration [11] and for two-section passively mode-locked devices via current and voltage variations [12].…”

mentioning

confidence: 90%

Optically induced hysteresis in a two-state quantum dot laser

et al. 2016

View full text Add to dashboard Cite

Quantum dot lasers can lase from the ground state only, simultaneously from both the ground and first excited states and from the excited state only. We examine the influence of optical injection at frequencies close to the ground state when the free-running operation of the device is excited state lasing only. We demonstrate the existence of an injection-induced bistability between ground state dominated emission and excited state dominated emission and the consequent hysteresis loop in the lasing output. Experimental and numerical investigations are in excellent agreement. Inhomogeneous broadening is found to be the underlying physical mechanism driving the phenomenon.

show abstract

mentioning

confidence: 90%

Optically induced hysteresis in a two-state quantum dot laser

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Experimentally, the studied slave laser (SL) was a 0.6 mm long InAs QD laser similar to that used in 6 and lased either at the GS (around 1300 nm) or simultaneously at the GS and ES (around 1215 nm) or solely at the ES. The threshold currents of the laser were 34 mA for GS lasing and 60 mA for simultaneous GS and ES lasing at room temperature.…”

Section: Free Running Qd Lasermentioning

confidence: 99%

“…Three modes of operation -GS, GS+ES, ES -for the output are typical for short cavity QD lasers with increasing pump current and their study has previously attracted significant attention. [6][7][8][9][10][11] The emission from the GS was strictly from a single (longitudinal) mode which we label the preferential mode. The emission from the ES was multimode with about 10 nm spectral width.…”

Section: Free Running Qd Lasermentioning

confidence: 99%

Lasing state hysteresis in a two-state quantum dot laser via optical injection

et al. 2016

Self Cite

View full text Add to dashboard Cite

Quantum dot lasers readily lase from multiple distinct energy states. We examine the influence of optical injection into the ground state (GS) when the free-running operation is the first second excited state (ES) only and demonstrate the existence of an injection-induced bistability between GS emission and ES emission. There is a consequent hysteresis loop in the lasing output. Experimental and numerical investigations are in excellent agreement.

show abstract

“…Lasers and, in particular, semiconductor lasers are well known for having rich and complex dynamical behaviour intrinsically linked to exciting physical features and with the potential to lead to cutting-edge applications [1][2][3]. While one of the main practical interests at first was to understand how to avoid instabilities -which, by the way, still remain a significant issue nowadays [4][5][6]-the field has largely outgrown this initial problem to tackle a wide variety of topics: from application of optical chaos-chaos communication, random number generation or random key distribution [3]-to all-optical processing, high-frequency signal generation, RF over fiber or LIDAR systems [7][8][9][10]. These topics of research are also indirectly supported by the impressive growth of both the fields of microwave photonics [7,11] and photonic integration [12].…”

Section: Introductionmentioning

confidence: 99%

Laser diodes with modulated optical injection: towards a simple signal processing unit?

Desmet

Virte

2020

J. Phys. Photonics

View full text Add to dashboard Cite

The idea of using the dynamical behaviour of a semiconductor laser to perform a certain processing operation of an input signal has been around for quite a long time. While the unidirectional optical injection scheme seems well suited to such a target-with the injection serving as an optical carrier for the input signal-the impact of a modulation of the injection beam still requires thorough investigation. Here, we study the case of an optically injected laser with a simple single-tone modulation term added to the injection signal. We analyse the impact of amplitude modulation on the laser dynamics, and particularly focus on the evolution within the injection locking range. We highlight clear passband behaviour corresponding to the laser resonance at its relaxation oscillation frequency, and characterize its features for various parameter changes. Next, we report dramatic differences between amplitude and phase modulation as the latter quickly leads to a loss of the injection locking and to the emergence of chaotic dynamics in place from the passband response identified in the case of amplitude modulation. At last, we discuss the suitability of using laser diodes for signal filtering, as was recently proposed by others, and identify the main remaining issues that need to be overcome.

show abstract

All-optical switching with a dual-state, single-section quantum dot laser via optical injection

Abstract: An all-optical switching mechanism via optical injection of an InAs/GaAs quantum dot laser is presented. Relative state suppression in excess of 40 dB is achieved, and experimental switching times of the order of a few hundred picoseconds are demonstrated.

Cited by 35 publications

References 21 publications

Optically induced hysteresis in a two-state quantum dot laser

Optically induced hysteresis in a two-state quantum dot laser

Lasing state hysteresis in a two-state quantum dot laser via optical injection

Laser diodes with modulated optical injection: towards a simple signal processing unit?

Contact Info

Product

Resources

About