The 2 μm wavelength belongs to the eye-safe band and has a wide range of applications in fields lidar, biomedicine, materials processing. With rapid development military, wind power, sensing, other industries, new requirements for solid-state laser light sources have emerged, especially field lidar. This paper focuses on research progress lasers lidar over past decade. technology performance pu...

facts technology has considerable applications in power systems, such as; improving the steady stateperformance, damping the power system oscillations, controlling the power flow, and etc. statcom is oneof the most important facts devices used in the parallel compensation, enhancing transient stability andetc. since three phase fault is widespread in power systems, in this paper statcom is used...

OBJECTIVE To compare structural and functional outcomes and efficiency of diode laser photocoagulation for retinopathy of prematurity (ROP) when delivered in a pulsed mode versus a near-continuous mode. METHODS A retrospective study was conducted of 138 patients who underwent diode laser photocoagulation for threshold ROP using either pulsed or near-continuous delivery. Laser-related complica...

The ability to fabricate monolithic two-dimensional (2D) diode laser arrays is a key step towards making high-power lasers at low cost, because the manufacture of such laser arrays eliminates labour-intensive fabrication and packaging [ 11. The surface-normal topology of the vertical cavity surface-emitting laser (VCSEL) makes it ideally suited to the formation of 2D arrays for high power appli...

The development of rf systems capable of producing high peak power (hundreds of megawatts) at relatively short pulse lengths (0.1-5 microseconds) is currently being driven mainly by the requirements of future high energy linear colliders, although there may be applications to industrial, medical and research linacs as well. The production of high peak power rf typically involves four basic elem...

Demonstrations of CW and pulsed microchip lasing in Cr2þ:ZnS and Cr2þ:ZnSe crystals are reported. Slope efficiencies up to 53% with output power up to 150 mW for CW and energy up to 1 mJ for pulsed pumping were achieved. Two compact diode and Er fibre laser directly pumped external cavity Cr2þ: ZnS lasers are also described.