Modelling and theoretical analysis of a novel common mirror based silicon photonic Michelson modulator

被引：0
作者：
Mursal Ayub Hamdani
Gausia Qazi
机构：
[1] National Institute of Technology,Department of Electronics and Communication
[2] Hazratbal,undefined
来源：
Optical and Quantum Electronics | 2023年 / 55卷
关键词：
Silicon photonics; Photonic integrated circuits; Michelson interferometer; Mach Zehnder modulator; Silicon waveguide;
D O I：
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学科分类号：
摘要：
We propose a novel and compact common mirror Michelson modulator (CMMM) with VπLπ of 0.38 V-cm. This is the best reported value of VπLπ for a silicon photonic Michelson modulator. Firstly, a simplified transfer matrix model evaluating the transmission response of CMMM is evaluated. We report the GDSII layout of CMMM using state of the art AIM PHOTONICS PDK with a design floorplan of 1200 µm × 500 µm. The inverted L shaped ILS-PN phase shifter (n = 1e18 cm−3; p = 3.5e17 cm−3) is proposed, evaluated and compared with the nominal horizontal PN variant. The ILS-PN variants have a higher value of phase change for a given Vbias and concentration. This leads to a better modulation efficiency (VπLπ of 0.38 V-cm) at a higher effective index modulation (3.4 × 10–4). The effect of doping profile (DP) and source impedance Zs on the bitrate and extinction ratio (ER) of the optical transmission is evaluated and speeds of 50 Gbps with ER of 3.21 dB and E/bit of 1.5 pJ/bit are reported for the novel ILS-PN based CMMM. Effect of DP and Zs on Bit error rate and ER of CMMM is evaluated for comparison.
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