Abstract
Brightness enhancement of high power quasicontinuous- wave beams is investigated in a diamond Raman laser as a function of the input beam quality. Up to 389 W of 1240 nm output is generated with a 78.2% linear slope efficiency and 52.5% overall conversation efficiency. For an M2 = 3.3 pump, the output beam quality factor of M2 = 1.08 was obtained, yielding a brightness enhancement factor of 3.7. Higher brightness enhancement factors are predicted when using lower beam quality pumps provided that a minimum input brightness is attained. The results point to new ways of creating brighter laser beams from high power lasers having degraded beam quality.
Original language | English |
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Title of host publication | 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 |
Place of Publication | Piscataway, NJ |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 1-2 |
Number of pages | 2 |
ISBN (Electronic) | 9781509062904 |
ISBN (Print) | 9781509062911 |
DOIs | |
Publication status | Published - 22 Nov 2017 |
Event | 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 - Singapore, Singapore Duration: 31 Jul 2017 → 4 Aug 2017 |
Conference
Conference | 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 |
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Country/Territory | Singapore |
City | Singapore |
Period | 31/07/17 → 4/08/17 |
Keywords
- Brightness enhancement
- Continuous-wave
- Diamond
- External cavity
- Raman laser