Anticompetition of laser modes in quantum dot lasers

Ching-Fuh Lin; Ding-Ye Chiang; Yi-Shin Su

doi:10.1117/12.645025

7 February 2006 Anticompetition of laser modes in quantum dot lasers

Ching-Fuh Lin, Ding-Ye Chiang, Yi-Shin Su

Proceedings Volume 6129, Quantum Dots, Particles, and Nanoclusters III; 612901 (2006) https://doi.org/10.1117/12.645025
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

Laser mode competition is a well-known phenomenon in a multi-mode laser system. The competition between different lasing modes is considered inevitable in all kinds of lasers. However, our experiments show that laser mode anti-competition can be observed in lasers that combine either quantum dots (QD) of different sizes or quantum wells of different composition and width. Here we report the anti-competition experiment from QD lasers. The QD structure is grown on a GaAs substrate. Two types of QD layers for 1.24μm emission and 1.28μm emission are grown alternatively in the active layer. The anti-competition behavior is observed in an external cavity laser controlled by the grating, oscillating at two different wavelengths. Experimental results show that when short-wavelength light intensity increases, long-wavelength light intensity will also increase. This is the anti-competition behavior. Nonetheless, when short-wavelength light intensity is above a certain level, long-wavelength light intensity decreases. It means that the laser behavior changes to the usual competition situation at the large intensity.

Citation Download Citation

Ching-Fuh Lin, Ding-Ye Chiang, and Yi-Shin Su "Anticompetition of laser modes in quantum dot lasers", Proc. SPIE 6129, Quantum Dots, Particles, and Nanoclusters III, 612901 (7 February 2006); https://doi.org/10.1117/12.645025

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available