Abstract
We numerically performed wave dynamical simulations based on the Maxwell–Bloch (MB) model for a quadrupole-deformed microcavity laser with spatially selective pumping. We demonstrate the appearance of an asymmetric lasing mode whose spatial pattern violates both the x- and y-axes mirror symmetries of the cavity. Dynamical simulations revealed that a lasing mode consisting of a clockwise or counterclockwise rotating-wave component is a stable stationary solution of the MB model. From the results of a passive-cavity mode analysis, we interpret these asymmetric rotating-wave lasing modes by the locking of four nearly degenerate passive-cavity modes. For comparison, we carried out simulations for a uniform pumping case and found a different locking rule for the nearly degenerate modes. Our results demonstrate a nonlinear dynamical mechanism for the formation of a lasing mode that adjusts its pattern to a pumped area.
| Original language | English |
|---|---|
| Article number | 2327-9125/17/060B47-07 |
| Pages (from-to) | B47-B53 |
| Journal | Photonics Research |
| Volume | 5 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2017 Dec 1 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
Cite this
Self-adjustment of a nonlinear lasing mode to a pumped area in a two-dimensional microcavity [invited]. / Kawashima, Yuta; Shinohara, Susumu; Sunada, Satoshi; Harayama, Takahisa.
In: Photonics Research, Vol. 5, No. 6, 2327-9125/17/060B47-07, 01.12.2017, p. B47-B53.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Self-adjustment of a nonlinear lasing mode to a pumped area in a two-dimensional microcavity [invited]
AU - Kawashima, Yuta
AU - Shinohara, Susumu
AU - Sunada, Satoshi
AU - Harayama, Takahisa
PY - 2017/12/1
Y1 - 2017/12/1
N2 - We numerically performed wave dynamical simulations based on the Maxwell–Bloch (MB) model for a quadrupole-deformed microcavity laser with spatially selective pumping. We demonstrate the appearance of an asymmetric lasing mode whose spatial pattern violates both the x- and y-axes mirror symmetries of the cavity. Dynamical simulations revealed that a lasing mode consisting of a clockwise or counterclockwise rotating-wave component is a stable stationary solution of the MB model. From the results of a passive-cavity mode analysis, we interpret these asymmetric rotating-wave lasing modes by the locking of four nearly degenerate passive-cavity modes. For comparison, we carried out simulations for a uniform pumping case and found a different locking rule for the nearly degenerate modes. Our results demonstrate a nonlinear dynamical mechanism for the formation of a lasing mode that adjusts its pattern to a pumped area.
AB - We numerically performed wave dynamical simulations based on the Maxwell–Bloch (MB) model for a quadrupole-deformed microcavity laser with spatially selective pumping. We demonstrate the appearance of an asymmetric lasing mode whose spatial pattern violates both the x- and y-axes mirror symmetries of the cavity. Dynamical simulations revealed that a lasing mode consisting of a clockwise or counterclockwise rotating-wave component is a stable stationary solution of the MB model. From the results of a passive-cavity mode analysis, we interpret these asymmetric rotating-wave lasing modes by the locking of four nearly degenerate passive-cavity modes. For comparison, we carried out simulations for a uniform pumping case and found a different locking rule for the nearly degenerate modes. Our results demonstrate a nonlinear dynamical mechanism for the formation of a lasing mode that adjusts its pattern to a pumped area.
UR - http://www.scopus.com/inward/record.url?scp=85037333782&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85037333782&partnerID=8YFLogxK
U2 - 10.1364/PRJ.5.000B47
DO - 10.1364/PRJ.5.000B47
M3 - Article
VL - 5
SP - B47-B53
JO - Photonics Research
JF - Photonics Research
SN - 2327-9125
IS - 6
M1 - 2327-9125/17/060B47-07
ER -