2013/05/31 by M. Sumetsky · 131 citations
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Broadband #Dispersion (optics) #Insertion loss #Materials science #Optics #Optoelectronics #Photonic Crystals and Applications #Photonic and Optical Devices #Photonic crystal #Physics #RADIUS #Rayleigh scattering #Resonator #Slow light #physics.optics
paper · pdf · doi:10.1103/physrevlett.111.163901
published in Physical Review Letters 111(16), 163901 (American Physical Society)
arxiv created 2013/07/17 · openalex publication_date 2013/10/17 · arxiv updated 2015/06/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It is shown theoretically that an optical bottle resonator with a nanoscale radius variation can perform a multinanosecond long dispersionless delay of light in a nanometer-order bandwidth with minimal losses. Experimentally, a 3 mm long resonator with a 2.8 nm deep semiparabolic radius variation is fabricated from a 19 μm radius silica fiber with a subangstrom precision. In excellent agreement with theory, the resonator exhibits the impedance-matched 2.58 ns (3 bytes) delay of 100 ps pulses with 0.44 dB/ns intrinsic loss. This is a miniature slow light delay line with the record large delay time, record small transmission loss, dispersion, and effective speed of light.