2 papers
physics.optics2026
Fast and wide-range wavelength tuning of a III-V/Si3N4 external-cavity laser via two-step pulsed heating
Cong Wang, Fuyi Cao, Xin Xu +8
Fast and wide-range wavelength switching is desirable for optical communications and photonic systems that are frequency-agile. However, thermo-optic (TO)-tuned integrated lasers o…
physics.optics2026
Few-picosecond pulse generation featuring ultrafast spectral dynamics in gain-switched surface-grating DFB lasers via impulsive optical pumping
Yihan Qi, Fuyi Cao, Hidekazu Nakamae +7
To investigate the physics of picosecond gain-switching dynamics in single-mode lasers under femtosecond optical pumping at room temperature, we designed and fabricated first-order…