A two-wavelength, passively self-injection locked, CW Ti/sup 3+/:Al/sub 2/O/sub 3/ laser
| Autor: | R. Barbe, M. Gorris-Neveux, J.-C. Keller, Marin N. Nenchev |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Materials science
business.industry chemistry.chemical_element Ring laser Condensed Matter Physics Laser Atomic and Molecular Physics and Optics law.invention Rubidium Injection locking Wavelength Full width at half maximum Optics chemistry law Optical cavity Electrical and Electronic Engineering Atomic physics business Diffraction grating |
| Zdroj: | IEEE Journal of Quantum Electronics. 31:1253-1260 |
| ISSN: | 0018-9197 |
| DOI: | 10.1109/3.391088 |
| Popis: | We have demonstrated that passive self-injection control is very effective in a CW Ti/sup 3+/:Al/sub 2/O/sub 3/ laser to produce high efficiency (/spl eta//spl sim/15%), narrow-line, two-wavelength emission. Light reinjection is achieved with an original high-resolution two-wavelength selector combining an interference wedge and a grazing incidence grating. The device operates outside the main nonselective laser cavity; thus avoiding insertion losses and optical damage problems. A 1.5 W, background free, total output power has been obtained simultaneously at two narrow laser lines (fwhm: 8 pm), independently tunable over 50 mn. The two laser lines can be emitted in a single beam or in two separated beams. Self-injection wavelength control has been demonstrated both for linear and for ring laser cavities. In the latter case, unidirectional behavior is also obtained in the same way. Single-step (5s/sup 2/S/sub 1/2/-5P/sup 2/P/sub 1/2,3/2/) and two-step (5s/sup 2/S/sub 1/2/-5p/sup 2/P/sub 3/2/-5d/sup 2/D/sub 3/2,5/2/) excitation of atomic rubidium vapor has been performed with our original laser device. > |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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