TY - JOUR
T1 - Optical source coherence controller for fibre optic delay line RF/microwave signal processors
AU - Chan, E.H.W.
AU - Minasian, R.A.
PY - 2005/10/1
Y1 - 2005/10/1
N2 - A technique for optical source coherence control that can suppress the important coherent interference effects in photonic delay line RF/microwave signal processors is presented. The concept is based on phase modulation of the optical carrier to transform the laser coherence to meet the requirements of the photonic signal processor that suppresses coherent interference. It enables conventional narrow-linewidth, high quality DFB lasers to be used for high frequency photonic signal processors, and tailors their coherence length to meet the processor design requirements. Experimental results show that the optical source coherence controller can realise photonic RF/microwave filters with robust response using narrow-linewidth sources, demonstrating the effectiveness of this technique for coherent interference suppression in photonic signal processors.
AB - A technique for optical source coherence control that can suppress the important coherent interference effects in photonic delay line RF/microwave signal processors is presented. The concept is based on phase modulation of the optical carrier to transform the laser coherence to meet the requirements of the photonic signal processor that suppresses coherent interference. It enables conventional narrow-linewidth, high quality DFB lasers to be used for high frequency photonic signal processors, and tailors their coherence length to meet the processor design requirements. Experimental results show that the optical source coherence controller can realise photonic RF/microwave filters with robust response using narrow-linewidth sources, demonstrating the effectiveness of this technique for coherent interference suppression in photonic signal processors.
KW - Coherent light
KW - Distributed feedback lasers
KW - Laser beams
KW - Light interference
KW - Microwave filters
KW - Optical fibers
KW - Phase modulation
KW - Photons, Coherent interference
KW - Fiber optic delay lines
KW - Optical phase modulation
KW - Photonic signal processing, Signal processing
UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-24644444699&doi=10.1016%2fj.optcom.2005.05.025&partnerID=40&md5=fcbd63c94d6fab22901b16028846ff82
U2 - 10.1016/j.optcom.2005.05.025
DO - 10.1016/j.optcom.2005.05.025
M3 - Article
SN - 0030-4018
VL - 254
SP - 104
EP - 111
JO - Optics Communications
JF - Optics Communications
IS - 1-3
ER -