Share Email Print
cover

Proceedings Paper

Blue semipolar III-nitride vertical-cavity surface-emitting lasers
Author(s): Jared A. Kearns; Nathan C. Palmquist; Joonho Back; SeungGeun Lee; Daniel A. Cohen; Steven P. DenBaars; Shuji Nakamura
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

A loss analysis of blue semipolar (20-2-1) vertical-cavity surface-emitting lasers with ion implanted apertures (IIA) reveals the presence of loss due to absorption in the implant and other absorbing regions. Devices using a buried tunnel junction (BTJ) scheme to confine the current are then analyzed to find the absence of any excess losses. The effect of changing the number of DBR periods on both device types is simulated to give a 70% and a 95% increase in output power for the IIA and BTJ devices, respectively, with the removal of one period from the top DBR at 10 kA/cm2. The mode structure of two different BTJ devices with different index confinements is compared to show that the 0.034 increase in refractive index difference significantly increased the prevalence of higher order modes.

Paper Details

Date Published: 16 February 2020
PDF: 9 pages
Proc. SPIE 11280, Gallium Nitride Materials and Devices XV, 112800H (16 February 2020); doi: 10.1117/12.2540508
Show Author Affiliations
Jared A. Kearns, Univ. of California, Santa Barbara (United States)
Nathan C. Palmquist, Univ. of California, Santa Barbara (United States)
Joonho Back, Univ. of California, Santa Barbara (United States)
SeungGeun Lee, Univ. of California, Santa Barbara (United States)
Daniel A. Cohen, Univ. of California, Santa Barbara (United States)
Steven P. DenBaars, Univ. of California, Santa Barbara (United States)
Shuji Nakamura, Univ. of California, Santa Barbara (United States)


Published in SPIE Proceedings Vol. 11280:
Gallium Nitride Materials and Devices XV
Hiroshi Fujioka; Hadis Morkoç; Ulrich T. Schwarz, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray