2004/09/14 by Jacob Scheuer, William M. J. Green, Guy DeRose +1
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Photonic Crystal and Fiber Optics #Solid State Laser Technologies #physics.optics
paper · pdf · doi:10.1364/ol.29.002641
published as Opt. Lett. 29, 2641(2004) · 8 pages, 4 figures
arxiv created 2004/09/14 · openalex publication_date 2004/11/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
Lasing at telecommunication wavelengths from annular resonators employing radial Bragg reflectors is demonstrated at room temperature under pulsed optical pumping. Submilliwatt pump threshold levels are observed for resonators with 0.5-1.5-wavelength-wide defects of radii 7-8 microm. The quality factors of the resonator modal fields are estimated to be of the order of a few thousand. The electromagnetic field is shown to be guided by the defect. Good agreement is found between the measured and the calculated spectra.