Three-dimensional ab initio investigation of light-matter interaction in Mie lasers
A. Fratalocchi, C. Conti, and G. Ruocco
We report on an ab initio investigation of light-matter interactions in a spherical Mie laser. We derive a three-dimensional vector set of Maxwell-Bloch (MB) equations and solve them by the finite-difference time-domain (FDTD) method. Parallel MB-FDTD simulations are employed to study the nonlinear ... [Phys. Rev. A 78, 013806 (2008)] published Wed Jul 2, 2008.
Diode-pumped laser operation of Yb[sup 3+]-doped Y[sub 2]Ca[sub 3]B[sub 4]O[sub 12] crystal
Alain Brenier, Chaoyang Tu, Yan Wang, Zhenyu You, Zhaojie Zhu et al.
We report in the present paper the Yb-doped YCaBO diode-pumped laser operation in both continuous-wave (cw) and passively Q-switched modes. The differential slopes of the cw output power are in the 22%40% range under different experimental conditions. Continuous tuning of the laser wavelength is obt ... [J. Appl. Phys. 104, 013102 (2008)] published Wed Jul 2, 2008.
Effect of intensity noise of semiconductor lasers on the digital modulation characteristics and the bit error rate of optical communication systems
Moustafa Ahmed and Minoru Yamada
This paper presents theoretical evaluation of the digital modulation performance of semiconductor lasers in digital communication systems with gigabit rates. The study is based on numerical integration of the rate equations augmented by a nonreturn-to-zero (NRZ) bit generator. For solitary semicondu ... [J. Appl. Phys. 104, 013104 (2008)] published Wed Jul 2, 2008.
Optimizing the Ar--Xe infrared laser on the Naval Research Laboratory's Electra generator
J. P. Apruzese, J. L. Giuliani, M. F. Wolford, J. D. Sethian, G. M. Petrov et al.
The ArXe infrared laser has been investigated in several series of experiments carried out on the Naval Research Laboratory's Electra generator. Our primary goals were to optimize the efficiency of the laser (within Electra's capabilities) and to gain understanding of the main physical processes und ... [J. Appl. Phys. 104, 013101 (2008)] published Wed Jul 2, 2008.
Tunable generation of Bessel beams with a fluidic axicon
Graham Milne, Gavin D. M. Jeffries, and Daniel T. Chiu
This paper describes a tunable fluidic conical lens, or axicon, for the generation and dynamic reconfiguration of Bessel beams. When illuminated with a Gaussian laser beam, our fluidic axicon generates a diverging beam with an annular cross section. By varying the refractive index of the solution th ... [Appl. Phys. Lett. 92, 261101 (2008)] published Mon Jun 30, 2008.
Development and Application Research of Highly Coherent X-ray Laser at 13.9 nm
Masaharu Nishikino, Noboru Hasegawa, Tetsuya Kawachi, Yoshihiro Ochi, Keisuke Nagashima et al.
We are developing plasma x-ray lasers pumped by ultra-short pulse lasers and have concentrated our efforts on developing a silver x-ray laser (13.9 nm) with spatially full coherence and application research using a highly coherent x-ray laser. Recently, we have developed a new pumping laser system, ... [AIP Conf. Proc. 1024, 250 (2008)] published Mon Jun 30, 2008.