We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
On-chip beam-steering photonic-crystal lasers.
- Authors
Kurosaka, Yoshitaka; Iwahashi, Seita; Liang, Yong; Sakai, Kyosuke; Miyai, Eiji; Kunishi, Wataru; Ohnishi, Dai; Noda, Susumu
- Abstract
The development of semiconductor lasers with on-chip controllability of the beam direction is important for a wide range of applications, including mobile laser projection displays, advanced laser printers and chip-to-chip optical communication. Here, we report a novel concept to realize such beam-steering lasers using photonic crystals. Our idea is based on the generation of artificial lasing band edges in the photonic band structure, which determine the resonant condition and output beam direction. We show that the lasing band edge can be tuned by using a composite photonic-crystal structure composed of both square and rectangular lattices, and by varying their relative lattice constants. We demonstrate that lasers based on such composite photonic-crystal structures are able to emit beams in a range of directions that can be dynamically controlled by on-chip integration.
- Subjects
SOLID-state lasers; SEMICONDUCTOR lasers; LASER beams; LASER printers; CRYSTALS; LASERS
- Publication
Nature Photonics, 2010, Vol 4, Issue 7, p447
- ISSN
1749-4885
- Publication type
Article
- DOI
10.1038/nphoton.2010.118