Parity time-symmetric vertical cavities: intrinsically single-mode regime in longitudinal direction

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Title: Parity time-symmetric vertical cavities: intrinsically single-mode regime in longitudinal direction
Author(s): Jones, HF
Kulishov, M
Kress, B
Item Type: Journal Article
Abstract: We explore a new class of distributed feedback (DFB) structures that employ the recently-developed concept of parity-time (PT) symmetry in optics. We show that, based on PT-symmetric pure reflective volume gratings, a vertical surface-emitting cavity can be constructed. We provide a detailed analysis of the threshold conditions as well as the wavelength and angular spectral characteristics using the Kogelnik coupled-wave approximation, backed up by an exact solution of the Helmholtz equation. We show that such a PT-symmetric cavity can be configured to support one and only one longitudinal mode, leading to inherently single-mode lasing.
Publication Date: 25-Jul-2016
Date of Acceptance: 12-Jul-2016
URI: http://hdl.handle.net/10044/1/42873
DOI: https://dx.doi.org/10.1364/OE.24.017125
ISSN: 1094-4087
Publisher: Optical Society of America
Start Page: 17125
End Page: 17137
Journal / Book Title: Optics Express
Volume: 24
Issue: 15
Copyright Statement: © 2016 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
Keywords: Science & Technology
Physical Sciences
Optics
DISTRIBUTED-FEEDBACK LASERS
SEMICONDUCTOR-LASERS
WAVE-GUIDE
GRATINGS
INDEX
RESONATOR
SPECTRA
Optics
0205 Optical Physics
1005 Communications Technologies
0906 Electrical And Electronic Engineering
Publication Status: Published
Open Access location: https://doi.org/10.1364/OE.24.017125
Appears in Collections:Physics
Theoretical Physics



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