Acta Photonica Sinica, Volume. 42, Issue 6, 631(2013)
Design of Silicon-on-insulator Ultra-small Micro-ring Resonator Microwave Photonics Phase Shifter
A ultra-small micro-ring phase shifter based on the silicon-on-insulator (SOI) material is designed. 2π phase shift in the free spectral range and optimal linearization is achieved. According to the phase shift characteristics of the micro-ring resonator all-pass phase structure, phase shift of the micro-ring is π at the critical coupling area and 2π in the over coupling area. Two parameters (straight waveguide width and spacing) of the micro-ring are investigated which affect the phase shift. Finesse F also is used as a parameter for spacing, and micro-ring resonator’ phase shift combined with the power of change is discussed. The experimental results show that the designed micro-ring phase shifter can achieve the RF phase shift of 0~4 rad, and RF power variation is less than 6 dB with a 40 GHz RF signal.
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WANG Wei, YANG Li-jun, WU Wei, FENG Qi, BAI Chen-xu, FENG Shi-juan, WANG Zhen. Design of Silicon-on-insulator Ultra-small Micro-ring Resonator Microwave Photonics Phase Shifter[J]. Acta Photonica Sinica, 2013, 42(6): 631
Received: Nov. 6, 2012
Accepted: --
Published Online: Jun. 14, 2013
The Author Email: Wei WANG (wangwei@cqupt.edu.cn)