Polarization flip cavities: A new approach to laser resonators

<title>Use of parallel axicon for compensation of birefringence in active elements of solid state lasers</title>

“…Consequently, for any plane in Fig. 3 the following equalities must be valid (19) From expressions (9)(10)(11)(12)(13)(14)(15)(16)(17) it is seen that condition (19) is valid for all planes. On the Poincare sphere the complex-conjugate polarizations are represented by pairs ofpoints on the same meridian and the same latitude but in different hemispheres, i.e., symmetrical points relative to the equator plane.…”

Laser operation with two orthogonally polarized transverse modes

“…However, the manipulation of the intracavity and external beams was simpler with the PBS configuration than with the more-compact configuration. Similar resonator configurations, with different polarizations in different paths, were considered for the reduction of polarization effects and the improvement of the output power in solid-state lasers, 8,9 and for forming either azimuthally polarized or radially polarized laser output beams. 10 Outside the laser resonator, each of the two beams can be manipulated separately.…”

Faraday Isolators for High Average Power Lasers

“…Note that all the results reported below are valid not only for cw lasers but for pulse lasers with high repetition rate as well. Unlike FI, a Faraday mirror proposed in (Giuliani & Ristori, 1980) is used not for optical isolation, but for compensation of birefringence in laser amplifiers (Carr & Hanna, 1985), oscillators (Giuliani & Ristori, 1980), regenerative amplifiers (Denman & Libby, 1999) and fiber optics as well (Gelikonov et al, 1987). Despite the great similarity between the Faraday mirror and FI, there are two primary differences between them.…”