# Bistability and opto-thermal-pulsations in a quantum-dot edge-emitting laser

Alessio Tierno, Thorsten Ackemann

Research output: Contribution to journalConference Contribution

1 Citation (Scopus)

### Abstract

Self-sustained pulsations in the output of an InAs quantum dot laser diode in the MHz range are reported for the first time. The characteristics (shape, range and frequency) are presented for the free running laser and when optical feedback in the Littrow configuration is applied. The time scale suggest that these are
opto-thermal pulsation similar to those reported in quantum well amplifiers. Bistability in the light-current characteristics is observed for wavelengths smaller the gain peak ($\lambda = 1225$nm), but it is not present for wavelength above the gain peak and for the free running lasers.
Language English 012092 Journal of Physics Conference Series 245 1 10.1088/1742-6596/245/1/012092 Published - 2010

### Fingerprint

quantum dots
wavelengths
lasers
amplifiers
semiconductor lasers
quantum wells
output
configurations

### Keywords

• optics
• lasers
• quantum dot
• multistability
• laser diodes

### Cite this

@article{5a8f2ed95cd44582861618c7ea48872d,
title = "Bistability and opto-thermal-pulsations in a quantum-dot edge-emitting laser",
abstract = "Self-sustained pulsations in the output of an InAs quantum dot laser diode in the MHz range are reported for the first time. The characteristics (shape, range and frequency) are presented for the free running laser and when optical feedback in the Littrow configuration is applied. The time scale suggest that these are opto-thermal pulsation similar to those reported in quantum well amplifiers. Bistability in the light-current characteristics is observed for wavelengths smaller the gain peak ($\lambda = 1225$nm), but it is not present for wavelength above the gain peak and for the free running lasers.",
keywords = "optics, lasers, quantum dot, multistability, laser diodes",
author = "Alessio Tierno and Thorsten Ackemann",
year = "2010",
doi = "10.1088/1742-6596/245/1/012092",
language = "English",
volume = "245",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
number = "1",

}

In: Journal of Physics Conference Series, Vol. 245, No. 1, 012092, 2010.

Research output: Contribution to journalConference Contribution

TY - JOUR

T1 - Bistability and opto-thermal-pulsations in a quantum-dot edge-emitting laser

AU - Tierno, Alessio

AU - Ackemann, Thorsten

PY - 2010

Y1 - 2010

N2 - Self-sustained pulsations in the output of an InAs quantum dot laser diode in the MHz range are reported for the first time. The characteristics (shape, range and frequency) are presented for the free running laser and when optical feedback in the Littrow configuration is applied. The time scale suggest that these are opto-thermal pulsation similar to those reported in quantum well amplifiers. Bistability in the light-current characteristics is observed for wavelengths smaller the gain peak ($\lambda = 1225$nm), but it is not present for wavelength above the gain peak and for the free running lasers.

AB - Self-sustained pulsations in the output of an InAs quantum dot laser diode in the MHz range are reported for the first time. The characteristics (shape, range and frequency) are presented for the free running laser and when optical feedback in the Littrow configuration is applied. The time scale suggest that these are opto-thermal pulsation similar to those reported in quantum well amplifiers. Bistability in the light-current characteristics is observed for wavelengths smaller the gain peak ($\lambda = 1225$nm), but it is not present for wavelength above the gain peak and for the free running lasers.

KW - optics

KW - lasers

KW - quantum dot

KW - multistability

KW - laser diodes

UR - http://www.scopus.com/inward/record.url?scp=78651226830&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/245/1/012092

DO - 10.1088/1742-6596/245/1/012092

M3 - Conference Contribution

VL - 245

JO - Journal of Physics: Conference Series

T2 - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012092

ER -