Shukree Wassin,George Isoe,Andrew Leitch,Tim Gibbon.Transmission of precise phase coherent optical signals using a VCSEL stabilization system[J].Optoelectronics Letters,2019,15(3):200-203 Transmission of precise phase coherent optical signals using a VCSEL stabilization system Author Name Affiliation Shukree Wassin  Shukree Wassin, George Isoe, Andrew Leitch, and Tim Gibbon Centre for Broadband Communication, Physics Department, Nelson Mandela University, Port Elizabeth 6031, South Africa  George Isoe  Shukree Wassin, George Isoe, Andrew Leitch, and Tim Gibbon Centre for Broadband Communication, Physics Department, Nelson Mandela University, Port Elizabeth 6031, South Africa  Andrew Leitch  Shukree Wassin, George Isoe, Andrew Leitch, and Tim Gibbon Centre for Broadband Communication, Physics Department, Nelson Mandela University, Port Elizabeth 6031, South Africa  Tim Gibbon  Shukree Wassin, George Isoe, Andrew Leitch, and Tim Gibbon Centre for Broadband Communication, Physics Department, Nelson Mandela University, Port Elizabeth 6031, South Africa  Abstract:       To improve the time and frequency reference standards used for radio astronomy and high precision atomic physics applications, we describe a novel stable frequency transmission technique. The approach uses a vertical-cavity surface-emitting laser (VCSEL) based phase correction actuator. Using a frequency mixing process for feedback control, the phase noise induced along the 26 km G.655 optical fibre link was actively reduced. This was achieved by using a 1 310 nm dither controlled VCSEL phase error correction actuator together with the inherent chromatic dispersion properties of the fibre. The technique corrects phase noise and optical signal drift along the fibre at the transmission end. Fractional frequency instabilities across the G.655 fibre link of 4.44×10-12 at 1 s and 4.86×10-14 at 104 s are successfully reported. Hits: 806 Download times: 0 View Full Text    Download reader