5 µm CW Ce-doped chalcogenide glass fiber laser with 17% slope efficiency.

Efficient room temperature mid-infrared laser action in a Ce-doped chalcogenide fiber was demonstrated. The fiber had a doped selenide glass core in an undoped sulfide glass cladding. The pump source was a CW Fe:ZnSe laser emitting at 4.

Resonantly pumped Ce mid-infrared lasing in selenide glass.

In high purity -doped selenide glass pumped by a 4.08 µm Fe:ZnSe laser, 5.1-5.

Efficient Fe:CdTe laser producing 0.35 J pulses in the 5 µm spectral range.

High-energy laser operation of a -doped single-crystal CdTe is demonstrated at the temperature of 77 K. Pumped with 250 µs pulses of a 4.08 µm Fe:ZnSe laser, the Fe:CdTe laser produced a record output of 0.

2 mJ room temperature Fe:CdTe laser tunable from 5.1 to 6.3 μm.

We report a room temperature (RT) operation of a Fe:CdTe laser pumped by a Q-switched 2.94 μm Er:YAl(AlO) laser. The Fe:CdTe laser produced 2 mJ of output energy at λ=5.

Compact, highly efficient, 2.1-W continuous-wave mid-infrared Fe:ZnSe coherent source, pumped by an Er:ZBLAN fiber laser.

In this Letter, we report a compact and robust coherent source, operating in mid-infrared (IR) and based on the Fe:ZnSe chalcogenide gain medium, optically pumped by an Er:ZBLAN fiber laser. The output power of 2.1 W with a 59% slope efficiency with respect to the absorbed pump power at liquid nitrogen cooling is achieved.

Nanosecond-pulsed RT-operating at ~4 μm Fe:ZnSe laser pumped inside the cavity of a LD side-pumped Er:YLF laser.

Characteristics of an Fe:ZnSe laser with a new pump scheme were presented. An Fe:ZnSe crystal was placed inside the cavity of the Er:YLF laser pumped by a bar of laser diodes (LD) emitting at 975 nm. The high power 2.

High-energy thermoelectrically cooled Fe:ZnSe laser tunable over 3.75-4.82 μm.

The characteristics of an Fe:ZnSe laser thermoelectrically cooled to 220 K are described. Output energy of 7.5 J and optical-to-optical efficiency of 30% have been demonstrated in single-shot operation at 4.

Continuous-wave broadly tunable high-power Cr:CdS laser.

We report spectroscopic characteristics and laser properties of the mid-infrared active laser medium Cr:CdS. Temperature-dependent absorption, luminescence and lifetime measurements of the E exited state allow determination of peak emission cross section value of 1.35 × 10 cm in -polarization at room temperature.