Frequency tristability of single-mode, standing-wave gas lasers containing a saturable absorber

1988 ◽  
Vol 5 (5) ◽  
pp. 1083
Author(s):  
John C. Englund
Keyword(s):  
Standing Wave ◽  
Saturable Absorber ◽  
Single Mode ◽  
Gas Lasers

Polarization Dynamical Phenomena in Gas Lasers with Weakly Anisotropic Cavities

1998 ◽  
Vol 08 (05) ◽  
pp. 1025-1032
Author(s):  
V. G. Gudelev ◽  
L. P. Svirina ◽  
Yu. P. Zhurik
Keyword(s):  
Active Medium ◽  
Standing Wave ◽  
Experimental Studies ◽  
Single Mode ◽  
Gas Lasers ◽  
Class A ◽  
Empty Cavity ◽  
Elliptically Polarized

This paper presents the results of theoretical and experimental studies of a series of polarization dynamical phenomena in a single-mode standing-wave class-A laser with weakly anisotropic cavity at elliptically polarized eigenstates. The existence of spontaneous pulsations caused by the competition of active medium and empty cavity anisotropies is also proved.

Single-mode erbium laser with CW tunability by exploiting saturable absorber and self-injected loop

2020 ◽  
Vol 459 ◽  
pp. 124968 ◽  
Author(s):  
Chien-Hung Yeh ◽  
Chien-Ming Luo ◽  
Yue-Ru Xie ◽  
Chi-Wai Chow
Keyword(s):  
Saturable Absorber ◽  
Single Mode ◽  
Erbium Laser

Gain saturation in optically pumped standing-wave gas lasers

1985 ◽  
Vol 53 (5) ◽  
pp. 329-334 ◽  
Author(s):  
F. Laguarta ◽  
R. Vilaseca ◽  
R. Corbalán
Keyword(s):  
Standing Wave ◽  
Gain Saturation ◽  
Optically Pumped ◽  
Gas Lasers

Simplification of the Maxwell-Bloch Equation of Standing Wave Lasers

2013 ◽  
Vol 760-762 ◽  
pp. 8-14
Author(s):  
Li Cheng Sun ◽  
Zheng Wu
Keyword(s):  
Mathematical Model ◽  
Numerical Simulations ◽  
Standing Wave ◽  
Light Field ◽  
Single Mode ◽  
Bloch Equation ◽  
Wave Form ◽  
Wave Laser ◽  
Mathematical Evaluation ◽  
New Equation

In order to make a numerical simulation of the chaos in standing wave lasers, a dynamic equation that is feasible to mathematical evaluation is required. There is a summation symbol in the well known Haken laser equation, and it results in a tremendously heavy quantity of evaluation. In order to simplify the evaluation, the light field in the Haken laser equation was expanded in the standing wave form. Two macroscopic variables were brought in to eliminate the summation symbol in terms of single mode and homogeneously broadening. Therefore, a simplified Maxwell-Bloch equation was gained. Then by normalizing, a new equation was obtained. This equation is in a simple form. Its every variable has unambiguous meaning and every coefficient is only related to gain or dissipation and is easy to obtain. Moreover, the equation is used in two MATLAB numerical simulations of a CO2laser and a chaotic attractor is obtained. So the equation could be a mathematical model in numerical simulations of standing wave laser chaos.

The Virtual Retinal Display: A new Display Technology using Scanned Laser Light

1998 ◽  
Vol 42 (22) ◽  
pp. 1570-1574 ◽  
Author(s):  
Homer L. Pryor ◽  
Thomas A. Furness ◽  
Erik Viirre
Keyword(s):  
Laser Light ◽  
Low Vision ◽  
Single Mode ◽  
Video Camera ◽  
Two Dimensions ◽  
Virtual Image ◽  
Developmental Models ◽  
Gas Lasers ◽  
Display Technology ◽  
New Research

The Virtual Retinal Display (VRD) is a new display technology that scans modulated low energy laser light directly onto the viewer's retina to create a perception of a virtual image. This approach provides an unprecedented way to stream photons to the receptors of the eye, affording higher resolution, increased luminance, and potentially a wider field-of-view than previously possible in head coupled displays. The VRD uses video signals from a graphics board or a video camera to modulate low power coherent light from red, green and blue photon sources such as gas lasers, laser diodes and/or light emitting diodes. The modulated light is then combined and piped through a single mode optical fiber. A mechanical resonant scanner and galvanometer mirror then scan the photon stream from the fiber in two dimensions through reflective elements and semitransparent combiner such that a raster of light is imaged on the retina. The pixels produced on the retina have no persistence, yet they create the perception of a brilliant full color, and flicker-free virtual image. Developmental models of the VRD have been shown to produce VGA and SVGA image quality. This paper describes the VRD technology, the advantages that it provides, and areas of human factors research ensuing from scanning light directly onto the retina. Future applications of the VRD are discussed along with new research findings regarding the use of the VRD for people with low vision

Efficient single-mode operation of a standing-wave dye laser

1979 ◽  
Vol 19 (4) ◽  
pp. 399-403 ◽  
Author(s):  
M. Pinard ◽  
M. Leduc ◽  
G. Trenec ◽  
C. G. Aminoff ◽  
F. Laloë
Keyword(s):  
Standing Wave ◽  
Single Mode ◽  
Dye Laser ◽  
Single Mode Operation ◽  
Mode Operation
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