Group-III-nitride and halide-perovskite semiconductor gain media for amplified spontaneous emission and lasing applications

TK Ng, JA Holguin-Lerma, CH Kang… - Journal of Physics D …, 2021 - iopscience.iop.org
Group-III-nitride optical devices are conventionally important for displays and solid-state
lighting, and recently have garnered much interest in the field of visible-light communication …

Phase noise reduction of a 2 µm passively mode-locked laser through hybrid III-V/silicon integration

X Li, JXB Sia, W Wang, Z Qiao, X Guo, GI Ng, Y Zhang… - Optica, 2021 - opg.optica.org
Passively mode-locked semiconductor lasers are promising for a wide variety of chip-scale
high-speed and high-capacity applications. However, the phase noise/timing jitter of such …

Gain Characteristics of Optically Pumped UVC Lasers with Wide AlGaN Single‐Quantum‐Well Active Regions

G Cardinali, S Kölle, A Schulz, N Susilo… - … status solidi (a), 2024 - Wiley Online Library
Herein, the lasing threshold and gain characteristics of ultraviolet‐C optically pumped edge‐
emitting lasers with thick single‐quantum‐well (SQW) active regions are investigated by the …

Modal gain characteristics of a 2 μm InGaSb/AlGaAsSb passively mode-locked quantum well laser

X Li, H Wang, Z Qiao, X Guo, GI Ng, Y Zhang… - Applied Physics …, 2017 - pubs.aip.org
Passive mode locking with a fundamental repetition rate at∼ 18.46 GHz is demonstrated in
a two-section InGaSb/AlGaAsSb quantum well laser emitting at 2 μm. Modal gain …

Semipolar InGaN quantum-well laser diode with integrated amplifier for visible light communications

C Shen, TK Ng, C Lee, S Nakamura, JS Speck… - Optics express, 2018 - opg.optica.org
GaN-based semiconductor optical amplifier (SOA) and its integration with laser diode (LD) is
an essential building block yet to be demonstrated for III-nitride photonic integrated circuits …

Picosecond pulses from a monolithic GaSb-based passive mode-locked laser

S Becker, J Scheuermann, R Weih, K Rößner… - Applied Physics …, 2020 - pubs.aip.org
We present passive mode locking of a GaSb-based monolithic diode laser emitting at 2.2 μm
with a fundamental repetition rate around 9.57 GHz. A pulse width of∼ 2.4 ps is …

Picosecond pulse generation in monolithic GaN-based multi-section laser diodes

K Holc, T Weig, W Pletschen, K Köhler… - … and Devices VIII, 2013 - spiedigitallibrary.org
We develop a monolithic picosecond laser pulse generator, based on the classical design of
a group-III-nitride Fabry-Pérot laser diode with electrically separated ridge sections. We use …

Impact of band structure and absorber dynamics on self-Q-switching in GaN-based multisection laser diodes at high reverse bias

K Holc, T Weig, K Köhler, J Wagner… - Applied Physics …, 2013 - iopscience.iop.org
Self-Q-switching in GaN-based multisection laser diodes (MS-LDs) is investigated. The
influence of the absorption on threshold currents and charge carrier lifetimes in the absorber …

Implementation and investigation of mode locking in GaN‐based laser diodes in external cavity configuration

T Weig, H Höck, K Holc, K Köhler… - … status solidi (a), 2015 - Wiley Online Library
Investigation of spectro‐temporal characteristics of short‐pulse generation from a violet–
blue AlGaInN multi‐section laser diode implemented in an external cavity is demonstrated …

Superfluorescent emission in electrically pumped semiconductor laser

DL Boiko, X Zeng, T Stadelmann, S Grossmann… - arXiv preprint arXiv …, 2013 - arxiv.org
We report superfluorescent (SF) emission in electrically pumped InGaN/InGaN QW lasers
with saturable absorber. In particular, we observe a superlinear growth of the peak power of …