Excess quantum noise due to mode nonorthogonality in dielectric microresonators
Abstract
This work presents a theory of the frequency-resolved light emission of active two-dimensional dielectric microresonators, which are characterized by a highly nonparaxial mode structure and frequently feature a position-dependent dielectric constant and nonuniform gain. The Lorentzian intensity profile is characterized by an appropriately generalized Petermann factor, a renormalized peak position, and the cold-cavity resonance lifetime Γ . The theory also delivers a relation of Γ to the laser threshold that improves earlier phenomenological expressions even for the case of a homogeneous medium.
- Publication:
-
Physical Review A
- Pub Date:
- June 2009
- DOI:
- 10.1103/PhysRevA.79.061801
- arXiv:
- arXiv:0809.2349
- Bibcode:
- 2009PhRvA..79f1801S
- Keywords:
-
- 42.55.Sa;
- 05.45.Mt;
- 42.50.Lc;
- 42.50.Nn;
- Microcavity and microdisk lasers;
- Quantum chaos;
- semiclassical methods;
- Quantum fluctuations quantum noise and quantum jumps;
- Quantum optical phenomena in absorbing dispersive and conducting media;
- Physics - Optics
- E-Print:
- 4 + 2 pages, 1 + 1 figures (text plus supplemental information)