NDLI: Photonic-crystal surface-emitting laser

Content Provider	IEEE Xplore Digital Library
Author	Sakai, K. Noda, S.
Copyright Year	2010
Description	Author affiliation: Department of Electronic Science and Engineering, Kyoto University, 615-8510, Japan (Sakai, K.; Noda, S.)
Abstract	Recently, there has been growing interest in photonic-crystal surface-emitting lasers (PC-SELs) (1–4). The lasing principle exploited by the lasers is based on the band-edge effect in a two-dimensional (2D) PC, where the group velocity of light becomes zero and a 2D cavity mode is formed. The output power is coupled to the vertical direction by the PC itself, which gives rise to the surface-emitting function. Based upon this novel lasing mechanism, PC-SELs possess the following important features: first, perfect, single longitudinal, and lateral mode oscillation can be achieved even when the lasing area becomes very large (for example, devices >300 µm in diameter) (1, 2, 4); and second, the polarization mode (2) and the beam pattern (4) can be controlled by appropriate design of the unit cell and/or lattice phase in the 2D PC (as a result, a range of vector beams (5, 6) can be directly generated); third, the on-chip controllability of the beam direction (7) can be realized using a composite photonic crystal composed of square and rectangular lattices. In this report, we will overview the lasing principle, the device structures and these important features of PC-SELs. The lasing oscillation in blue-violet regime based on GaN PC-SELs (8) will also be discussed.
Starting Page	180
Ending Page	180
File Size	72740
Page Count	1
File Format	PDF
ISBN	9781424456833
ISSN	08999406
e-ISBN	9781424456840
DOI	10.1109/ISLC.2010.5642651
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-26
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vertical cavity surface emitting lasers Laser theory Laser beams Photonics Oscillators Laser modes
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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