Reflection and temperature insensitive quantum dot lasers

We experimentally demonstrate that InAs/GaAs quantum dot (QD) lasers exhibit high reflection insensitivity in the wide temperature range of 293 K to 353 K, which is due to the low and thermal stable linewidth enhancement factor. This work shows the potential of QD lasers as uncooled and isolator-free on-chip laser sources for next-generation photonic integrated circuits.