Parametric study of optically pumped far-infrared waveguide lasers, part 1. Theory and experiment of folded Fabry-Perot quasi-optical ring resonator diplexer
Abstract
Part 1 deals with the problems related to the physics and the design of one of the extremely useful coherent sources in the FIR region of the electromagnetic spectrum: the optically-pumped FIR waveguide laser. The effects of small waveguide diameter were studied here particularly because of their importance to the practical realization of a compact coherent FIR laser. Part 2 deals with a problem related to the physics and design of a diplexer for application in the FIR heterodyne radiometry, where signals from the local oscillator and the received signal have to be directed into a detector for frequency mixing and for further signal processing. Since the signal of interest is typically very weak, the diplexer should serve the dual purpose of directing the two beams and filtering out the unwanted frequency components (noise) to enhance the signal to noise ratio, and do so with minimum loss.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- 1983
- Bibcode:
- 1983PhDT........29C
- Keywords:
-
- Diplexers;
- Infrared Lasers;
- Optical Waveguides;
- Signal Processing;
- Design Analysis;
- Far Infrared Radiation;
- Heterodyning;
- Performance Tests;
- Radiometers;
- Signal To Noise Ratios;
- Lasers and Masers