TY - JOUR
T1 - Ultra-wideband microwave photonic phase shifter with configurable amplitude response
AU - Pagani, M.
AU - Marpaung, D.
AU - Eggleton, B.J.
PY - 2014
Y1 - 2014
N2 - We introduce a new principle that enables separate control of the amplitude and phase of an optical carrier, simply by controlling the power of two stimulated Brillouin scattering (SBS) pumps. This technique is used to implement a microwave photonic phase shifter with record performance, which solves the bandwidth limitation of previous gain-transparent SBS-based phase shifters, while achieving unprecedented minimum power fluctuations, as a function of phase shift. We demonstrate 360° continuously tunable phase shift, with less than 0.25 dB output power fluctuations, over a frequency band from 1.5 to 31 GHz, limited only by the measurement equipment.
AB - We introduce a new principle that enables separate control of the amplitude and phase of an optical carrier, simply by controlling the power of two stimulated Brillouin scattering (SBS) pumps. This technique is used to implement a microwave photonic phase shifter with record performance, which solves the bandwidth limitation of previous gain-transparent SBS-based phase shifters, while achieving unprecedented minimum power fluctuations, as a function of phase shift. We demonstrate 360° continuously tunable phase shift, with less than 0.25 dB output power fluctuations, over a frequency band from 1.5 to 31 GHz, limited only by the measurement equipment.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84908084036&partnerID=MN8TOARS
U2 - 10.1364/OL.39.005854
DO - 10.1364/OL.39.005854
M3 - Article
SN - 0146-9592
VL - 39
SP - 5854
EP - 5857
JO - Optics letters
JF - Optics letters
IS - 20
ER -