Nonabsorbing mirrors for AlGaAs quantum well lasers by impurity-free interdiffusion

Philippe Collot; Julia Arias; Virginie Mira; Eva Vassilakis; Francois H. Julien

doi:10.1117/12.344522

1 April 1999 Nonabsorbing mirrors for AlGaAs quantum well lasers by impurity-free interdiffusion

Philippe Collot, Julia Arias, Virginie Mira, Eva Vassilakis, Francois H. Julien

Proceedings Volume 3628, In-Plane Semiconductor Lasers III; (1999) https://doi.org/10.1117/12.344522
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

Impurity-free vacancy disordering (IFVD) was used to elaborate AlGaAs quantum-well (QW) laser diodes with non-absorbing mirror (NAM) facets to rise the catastrophic optical mirror degradation (COMD) threshold. Prior to laser processing, blueshifted emission windows were formed by rapid thermal annealing at 930 degrees Celsius below SiO₂ cap layers. The photoluminescence (PL) energy blueshift measured between active and window regions is around 30 meV, with no degradation on the PL signal. Active region, free of SiO₂ encapsulation, exhibits however a non-negligible PL blueshift which is attributed to an internal interdiffusion process. This effect seems to be related to the silicon doping of the n-type AlGaAs cladding layer. 120-micrometer-aperture broad area lasers were fabricated both with and without 25 micrometer NAM sections on both sides. COMD was measured under pulsed operation (50 microsecond(s) - 100 Hz) using an epi-side-up mounting configuration. Uncoated NAM facets exhibit, on the average, a COMD threshold 1.5 times higher than that of standard ones: we achieved by this way a maximum peak power of 2 W from a 782-nm emitting laser.

Citation Download Citation

Philippe Collot, Julia Arias, Virginie Mira, Eva Vassilakis, and Francois H. Julien "Nonabsorbing mirrors for AlGaAs quantum well lasers by impurity-free interdiffusion", Proc. SPIE 3628, In-Plane Semiconductor Lasers III, (1 April 1999); https://doi.org/10.1117/12.344522

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