Thermo-optic locking of a semiconductor laser to a microcavity resonance
arXiv:0909.1120 · doi:10.1364/OE.17.021977
Abstract
We experimentally demonstrate thermo-optic locking of a semiconductor laser to an integrated toroidal optical microresonator. The lock is maintained for time periods exceeding twelve hours, without requiring any electronic control systems. Fast control is achieved by optical feedback induced by scattering centers within the microresonator, with thermal locking due to optical heating maintaining constructive interference between the cavity and the laser. Furthermore, the optical feedback acts to narrow the laser linewidth, with ultra high quality microtoroid resonances offering the potential for ultralow linewidth on-chip lasers.
6 pages, 6 figures
Cited by in corpus (6)
- Cavity Optomechanical Magnetometer
- Picotesla-sensitivity microcavity optomechanical magnetometry
- Photothermal effects in ultra-precisely stabilized tunable microcavities
- Feedback Enhanced Sensitivity in Optomechanics: Surpassing the Parametric Instability Barrier
- Near threshold all-optical backaction amplifier
- Using thermo-optical nonlinearity to robustly separate absorption and radiation losses in nanophotonic resonators