St. Petersburg Polytechnic University Journal: Physics and Mathematics

Научно-технические ведомости СПбГПУ. Физико-математические науки

2304-9782, 2618-8686, 2405-7223

10.18721/JPM.173.242

Mode leakage into substrate in microdisk lasers

Утечка мод в подложку в микродисковых лазерах

Melnichenko

Ivan

imelnichenko@hse.ru

0000-0003-3686-935X

Moiseev

Eduard

emoiseev@hse.ru Ivanov

Konstantin

kivanov@hse.ru Kryzhanovskaya Natalia V.

Natalia

nkryzhanovskaya@hse.ru Vainilovich

Alexey

a.vainilovich@ifanbel.bas-net.by Nahorny

Aliaksey

a.nahorny@ifanbel.bas-net.by Lutsenko

Eugeniy

e.lutsenko@ifanbel.bas-net.by

35379962200

Zhukov

Alexey

zhukov@beam.ioffe.ru

National Research University “Higher School of Economics” (St. Petersburg branch) Ioffe Physical Technical Institute of the Russian Academy of Sciences

23 12 2024

17 3.2 212 216

The propagation of whispering gallery modes of a quantum-dot injection disk laser into a GaAs substrate has been investigated experimentally and using simulation. For a 50 μm diameter microlaser with 1.5-μm-thick Al0.4Ga0.6As claddings, the intensity of the mode leaking into the substrate can be up to 10–3 of the intensity of the laser mode in the waveguide.

InGaAs quantum well-dots whispering gallery mode microlasers mode leakage