An optical parametric oscillator in the mid-IR range based on a fan-out periodically poled structure of lithium niobate with a narrow-band seeding laser
The results of experimental studies of the effect of narrow-band seeding radiation of a gas laser on the spectral width of the oscillation line of an optical parametric oscillator (OPO), which is based on a fanout structure of a periodically poled lithium niobate (PPLN) crystal, are presented. The u...
| Published in: | Instruments and experimental techniques Vol. 64, № 2. P. 254-258 |
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| Other Authors: | , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000924734 Перейти в каталог НБ ТГУ |
| Summary: | The results of experimental studies of the effect of narrow-band seeding radiation of a gas laser on the spectral width of the oscillation line of an optical parametric oscillator (OPO), which is based on a fanout structure of a periodically poled lithium niobate (PPLN) crystal, are presented. The use of a seeding He- Ne laser made it possible to reduce the generation threshold for the OPO by a factor of 1.53, from 120 μJ (29.5 mJ/cm2) to 78 μJ (19 mJ/cm2). When the modes of the He-Ne laser were optimally matched in the OPO cavity, the width of the spectral line of the signal wave decreased by a factor of 4.65 and equaled 0.481 nm. |
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| Bibliography: | Библиогр.: 10 назв. |
| ISSN: | 0020-4412 |