A multiwatt all gas-phase iodine laser (AGIL)

All-passive phase locking of a compact Er:fiber laser system.

A passively phase-locked laser source based on compact femtosecond Er:fiber technology is introduced. The carrier-envelope offset frequency is set to zero via difference frequency generation between a soliton at a wavelength of 2 μm and a dispersive wave at 860 nm generated in the same highly nonlinear fiber. This process results in a broadband output centered at 1.55 μm. Subsequently, the 40 M...

Diode-pumped passively mode-locked multiwatt Nd:GdVO4 laser with a saturable Bragg reflector.

We report a first demonstration, to our knowledge, of a cw passively mode-locked Nd:GdVO4 laser (k = 1063 nm). A relaxed saturable Bragg reflector was used. The laser generates pulses of 9.2 ps at a repetition rate of 119 MHz. As much as 5.4 W of average power was realized with a slope efficiency of 25.7%.

Agil, aber Stabil

Agile Prozesse scheinen sich entsprechend der aktuellen Diskussion hauptsächlich für in sich geschlossene Softwareprojekte zu eignen. Bei umfangreicheren, interdisziplinären Projekten scheinen die harten Termine der Zulieferer, das komplexe Projektumfeld und die langwierigen Abstimmungsprozesse gegen agile Methoden zu sprechen. Die wichtigsten Eckpunkte des „Agilen Manifests“ [Be01] gelten aber...

Optically-Based Diagnostics for Gas-Phase Laser Development

In this paper we describe several diagnostics that we have developed to assist the development of high power gas phase lasers including COIL, EOIL, and DPAL. For COIL we discuss systems that provide sensitive measurements of O2(a), small signal gain, iodine dissociation, and temperature. These are key operational parameters within COIL, and these diagnostics have been used world-wide to gain a ...

Conversion to Laser Vaporization for Gas Phase Spectroscopy