Optical frequency combs offer an unrivalled degree of frequency measurement precision
that underpins the advance of modern technology in both fundamental science and …

In this paper we present a comprehensive review of the work done by our group on diode-
pumped bulk erbium–ytterbium microlasers. Starting from an analysis of the optical …

On-chip integration of optical comb sources is crucial in enabling their widespread use.
Integrated photonic devices that can be massmanufactured in semiconductor processing …

Recent progress in optical time-division-multiplexed (TDM) transmission technologies is
reviewed including optical short pulse generation, time-division multiplexing/demultiplexing …

Measurements of actively mode-locked semiconductor lasers are described and compared
to calculations of the mode-locking process using three coupled traveling-wave rate …

A detailed study of the design issues relevant to long-wavelength monolithic mode-locked
lasers is presented. Following a detailed review of the field, we have devised a validated …

Integration of the whole mode-locked laser onto a single piece of semiconductor offers a
number of advantages, including total elimination of optical alignment processes, improved …

We propose a technique for achieving mode-locking at very high repetition rates more than
terahertz with high output power using a distributed-Bragg-reflector (DBR) laser, including …

Ultrafast lasers generating high-repetition-rate ultrashort pulses through various mode-
locking methods can benefit many important applications, including communications …

Semiconductor mode-locked lasers (MLLs) can provide coherent optical frequency combs
(OFCs) with high repetition rates and output power, which have been recognized as …