We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Micro-LED pumped polymer laser: A discussion of future pump sources for organic lasers.
- Authors
Herrnsdorf, Johannes; Wang, Yue; McKendry, Jonathan J. D.; Gong, Zheng; Massoubre, David; Guilhabert, Benoit; Tsiminis, Georgios; Turnbull, Graham A.; Samuel, Ifor D. W.; Laurand, Nicolas; Gu, Erdan; Dawson, Martin D.
- Abstract
Optical pumping conditions for organic solid-state lasers (OSLs) are discussed with particular emphasis on the use of gallium nitride based light-emitting diodes (LEDs) as pump sources. LEDs operate in a regime where the pump should be optimized for a short rise time and high peak intensity, whereas fall time and overall pulse duration are less important. Lasers pumped with this approach need to have very low thresholds which can now be routinely created using (one-dimensional) distributed feedback lasers. In this particular case stripe-shaped excitation with linearly polarized light is beneficial. Arrays of micron-sized flip-chip LEDs have been arranged in an appropriate stripe shape and the array dimensions were chosen such that the divergence of LED emission does not cause a loss in peak intensity. These micro-LED arrays have successfully been used to pump OSLs with thresholds near 300 W/cm2 (∼9 ns rise time, 35 ns pulse duration), paving the way for compact arrays of indirectly electrically pumped OSLs.
- Subjects
SOLID-state lasers; OPTICAL pumping; OPTICAL properties of gallium nitride; LIGHT emitting diodes; OPTOELECTRONIC devices
- Publication
Laser & Photonics Reviews, 2013, Vol 7, Issue 6, p1065
- ISSN
1863-8880
- Publication type
Article
- DOI
10.1002/lpor.201300110