Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Spatiotemporal emission dynamics of ridge waveguide laser diodes: picosecond pulsing and switching

Not Accessible

Your library or personal account may give you access

Abstract

We report on the observation of spatiotemporal dynamics on picosecond time scales for an antireflection-coated ridge waveguide laser diode that is only 5 µm wide. Depending on the applied current, three dynamic regimes can be distinguished, showing the transition from regular to irregular spatiotemporal emission. We discuss the underlying mechanisms and develop a comprehensive understanding of this dynamic behavior. First, for moderate pumping, we find a typical relaxation oscillation behavior of the fundamental lateral mode. Second, at intermediate current levels, we observe lateral high-frequency switching of the output intensity between the left-hand and the right-hand parts of the active region. The switching frequency increases linearly with the excitation current and is of the order of 10 GHz. We give evidence that this switching behavior results from the coexistence and interaction of fundamental and first-order lateral modes that belong to different longitudinal mode families. The observed dependence of the switching frequency on the bias current can be attributed to a change in the width of the emission profile. Third, at high pumping levels, irregular spatiotemporal dynamics with the coexistence of low- and high-frequency spatial switching and temporal pulsations can be found. Finally, the influence of waveguide design and consequences for applications are considered and discussed.

© 1999 Optical Society of America

Full Article  |  PDF Article
More Like This
Spatiotemporal dynamics and high-frequency self-pulsations in two-section distributed feedback lasers

Xinhong Wang, Guifang Li, Jin Hong, and Stephen A. Pappert
J. Opt. Soc. Am. B 16(11) 2030-2039 (1999)

Dynamics of a gain-switched distributed feedback ridge waveguide laser in nanoseconds time scale under very high current injection conditions

A. Klehr, H. Wenzel, O. Brox, S. Schwertfeger, R. Staske, and G. Erbert
Opt. Express 21(3) 2777-2786 (2013)

Stabilization of chaotic spatiotemporal filamentation in large broad area lasers by spatially structured optical feedback

Christian Simmendinger, Dietmar Preißr, and Ortwin Hess
Opt. Express 5(3) 48-54 (1999)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved