Title :
Influence of Cavity Lifetime on High-Finesse Microcavity Two-Photon Absorption Photodetectors
Author :
Guo, W.H. ; O´Dowd, J. ; Lynch, M. ; Bradley, A.L. ; Donegan, J.F. ; Barry, L.P.
Author_Institution :
Semicond. Photonics Group, Trinity Coll., Dublin
fDate :
3/15/2007 12:00:00 AM
Abstract :
For optical pulse incidence as compared with continuous-wave incidence, the enhancement of two-photon absorption inside a high-finesse planar microcavity is reduced, the pulse inside the cavity and the cavity spectrum are broadened. The analysis shows that for transform-limited pulse incidence, the true pulsewidth and the cavity frequency resolution can be estimated if the cavity lifetime or the cavity bandwidth has been obtained from the reflection or transmission spectrum of the cavity
Keywords :
light reflection; micro-optics; microcavities; photodetectors; spectral line broadening; two-photon processes; cavity bandwidth; cavity frequency resolution; cavity lifetime; cavity spectrum; high-finesse microcavity; optical pulse incidence; photodetectors; planar microcavity; reflection spectrum; spectral broadening; transform-limited pulse; transmission spectrum; two-photon absorption; Absorption; Bandwidth; Frequency estimation; Life estimation; Lifetime estimation; Microcavities; Optical pulses; Optical reflection; Photodetectors; Space vector pulse width modulation; Autocorrelation; finesse; microcavity; photodetector; two-photon absorption (TPA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.892884
