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

H. F. Jones | Zendy; Mykola Kulishov | Zendy; Bernard Kress | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

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

Author(s) -

H. F. Jones,

Mykola Kulishov,

Bernard Kress

Publication year - 2016

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.24.017125

Subject(s) - lasing threshold , optics , physics , parity (physics) , longitudinal mode , helmholtz equation , coupled mode theory , wavelength , refractive index , quantum mechanics , boundary value problem

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.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research