After over 30 years of advances, multiphoton microscopy (MPM) is now instrumental in a
wide range of in vivo biological imaging applications. However, it has, until recently …

The way in which photons travel through biological tissues and subsequently become
scattered or absorbed is a key limitation for traditional optical medical imaging techniques …

The use of fundamental modelocking to generate short terahertz (THz) pulses and THz
frequency combs from semiconductor lasers has become a routine affair, using quantum …

Femtosecond lasers at fixed wavelengths above 1,000 nm are powerful, stable and
inexpensive, making them promising sources for two-photon microscopy. Biosensors …

Deep tissue multiphoton imaging requires high peak power to enhance signal and low
average power to prevent thermal damage. Both goals can be advantageously achieved …

We report femtosecond pulse generation at GHz repetition rates with the Yb: YLF gain
medium for the first time. A simple, low-cost, and compact architecture is implemented for the …

In this article we present a directly diode-pumped high-power Kerr-lens mode-locked Yb:
CALGO bulk laser oscillator operating at 1-GHz repetition rate. We report on two laser …

Higher repetition-rate optical pulse trains have been desired for various applications such as
high-bit-rate optical communication, photonic analogue-to-digital conversion, and multi …

Optically pumped passively modelocked vertical external-cavity surface-emitting lasers
(VECSELs) can generate pulses as short as 100 fs with an intracavity semiconductor …

High-power, high-speed quantum cascade lasers (QCLs) with stable emission in the mid-
infrared regime are of great importance for applications in metrology, telecommunication …