Projects per year
Abstract
A monolithic diamond Raman laser is reported. It utilizes a 13mm radius of curvature lens etched onto the diamond surface and dielectric mirror coatings to form a stable resonator. The performance is compared to that of a monolithic diamond Raman laser operating in a plane-plane cavity. On pumping with a compact Q-switched laser at 532nm (16μJ pulse energy; 1.5ns pulse duration; 10kHz repetition-rate; M2 <1.5), laser action was observed at the first, second and third Stokes wavelengths (573nm, 620nm and 676nm respectively) in both cases. For the microlens cavity, a conversion efficiency of 84% was achieved from the pump to the total output power, with a slope efficiency of 88%. This compares to a conversion efficiency of 59%, and a slope efficiency of 74% for the plane-plane case. Total Raman output powers of 134mW and 96mW were achieved for the micro-lens and plane-plane cavities respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 930-933 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 40 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 15 Mar 2015 |
Keywords
- laser
- diamond Raman laser
- solid-state lasers
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Projects
- 3 Finished
-
RAEng/Fraunhofer Research Chair in Advanced Laser Engineering
Kemp, A. (Principal Investigator)
Fraunhofer UK Research Limited, Royal Academy of Engineering RAE
1/02/14 → 31/12/19
Project: Research
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DIAL (Diamond Lasers: Revolutionising Laser Engineering) - ERC Starting Grant)
Kemp, A. (Principal Investigator), Birch, R. (Researcher), Casula, R. (Researcher), Fraczek, E. (Researcher), Paboeuf, D. (Researcher), Parrotta, D. C. (Researcher), Reilly, S. (Researcher), Roth, P. (Researcher) & Savitski, V. (Researcher)
European Commission - FP7 - European Research Council
1/10/11 → 30/09/16
Project: Research
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EPSRC DOCTORAL TRAINING GRANT | Reilly, Sean
Reilly, S. (Research Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/11 → 15/09/15
Project: Research Studentship - Internally Allocated
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