TY - JOUR
T1 - Brillouin-Assisted Notch Filtering Based All-Optical Image Rejection Mixer
AU - Albert, Chirappanath B.
AU - Huang, Chongjia
AU - Chan, Erwin Hoi Wing
PY - 2019/4
Y1 - 2019/4
N2 - A novel approach for realizing a microwave photonic image rejection mixer is presented in this paper. It is based on using a widely tunable narrow-band optical notch filter implemented by stimulated Brillouin scattering (SBS) to remove the image signal. The image rejection mixer has a simple structure as it only requires a single integrated dual-polarization modulator for both frequency conversion and pump wave generation for the SBS process. The absence of electrical components enables the image rejection mixer to be operated over a wide frequency range with a high image rejection ratio. A technique is also proposed to suppress the noise generated by the SBS process in the image rejection mixer. Experimental results demonstrate a high and constant image rejection ratio of over 32 dB for the image rejection mixer operating over an RF signal frequency range of 11.8-19.6 GHz, and around-5 dB conversion efficiency.
AB - A novel approach for realizing a microwave photonic image rejection mixer is presented in this paper. It is based on using a widely tunable narrow-band optical notch filter implemented by stimulated Brillouin scattering (SBS) to remove the image signal. The image rejection mixer has a simple structure as it only requires a single integrated dual-polarization modulator for both frequency conversion and pump wave generation for the SBS process. The absence of electrical components enables the image rejection mixer to be operated over a wide frequency range with a high image rejection ratio. A technique is also proposed to suppress the noise generated by the SBS process in the image rejection mixer. Experimental results demonstrate a high and constant image rejection ratio of over 32 dB for the image rejection mixer operating over an RF signal frequency range of 11.8-19.6 GHz, and around-5 dB conversion efficiency.
KW - analog optical signal processing
KW - Fiber optics communications
KW - microwave photonics
KW - radio frequency photonics
UR - http://www.scopus.com/inward/record.url?scp=85064111242&partnerID=8YFLogxK
U2 - 10.1109/JPHOT.2019.2905014
DO - 10.1109/JPHOT.2019.2905014
M3 - Article
AN - SCOPUS:85064111242
VL - 11
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
SN - 1943-0655
IS - 2
M1 - 8667309
ER -