An erbium fiber laser produces a beam of ultrashort laser pulses having a center wavelength
greater than 780 nano meters, an average power greater than 0.5 watt, and a pulse duration …

A broadband optical amplifier for operation in the 2 um visible wavelength band is based
upon a single-clad Tm doped fiber amplifier (TDFA). A compact pump source uses a …

A laser protection system includes a high-power laser source, an optical diffuser, a photo
detector, a signal-pro cessing device, and a control module. The high-power laser source …

A laser driver device is provided, which includes a control circuit, a driver circuit and a
feedback circuit. The control circuit receives setup data and convert the setup data into a …

The present disclosure provides an optical amplifier using an optical fiber. The optical fiber
includes a single-mode optical fiber in which a plurality of rare earth elements is doped …

Embodiments relate to an all fiber passively Q-switched laser. The laser includes a large
core doped gain fiber having a first end. The large core doped gain fiber has a first core …

The present invention relates to a Q-switching-induced gain Switched erbium pulse laser
system, capable of generating erbium laser pulses within the 2.5 um to 3.0 Lum wavelength …