scholarly journals Performance analysis of carrier depletion silicon PIN phase shifter

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Jesuwanth Sugesh Ramesh Gabriel ◽  
Sivasubramanian Arunagiri

AbstractIn this paper, we report the performance of a carrier depletion Silicon PIN phase shifter with over layer of 130 nm. It is observed that an optimum intrinsic gap of 250 nm for a device length of 5 mm at 2 V, resulted in Extinction Ratio (ER) of 23.41 dB and Bit Error Rate (BER) of 1.00 × 10−7 is obtained for 50 Gbps. The phase shifter is also designed for length 2 mm with an intrinsic gap of 100 nm at an operating voltage <4 V. The study also reveals that the proposed design for Mach-Zehnder modulator operating at a data rate of 100 Gbps for the concentration of P = 7 × 1017 cm−3 and N = 5 × 1017 cm−3 gives better BER and phase performance. The proposed design was also analysed in an intra-data centre communication setup of fibre length 15 km.

2021 ◽  
Vol 12 ◽  
pp. 32-37
Author(s):  
R.G. Jesuwanth Sugesh ◽  
A. Sivasubramanian

Scaling up of photonic devices is the current research of interest to meet the alarming demand growth in the data centres. The efficiency of the modulator is determined by the performance of the phase shifter. In this paper, a plus-shaped PN junction phase shifter is designed and analysed. This design improved the modulation efficiency and reduced optical loss for high-speed data operation. The width of the P doped region and thickness of thedoped regions in the slabs are varied to obtain high modulation efficiency. The circuit-level simulation analysis was performed on the proposed phase shifterimported in a travelling wave electrode silicon Mach Zehnder modulator. At 80 Gbps, a maximum extinction ratio of 12.39 dB with a bit error rate of 8.67×10-8 was obtained at VπLπ of 1.05 V.cm for the length of the phase shifter of 3.5 mm. The calculated intrinsic 3 dB bandwidth is ~38 GHz and the energy per bit transmission is 1.71pJ/bit.Further analysis was performed to identify the maximum communication distance supported by this proposed phase shifter design in the silicon Mach Zehnder modulator for the data centre requirements.


Author(s):  
R. G. Jesuwanth Sugesh ◽  
A. Sivasubramanian

Silicon Mach-Zehnder modulator (SMZM)is fit to high-contrast optical modulation in wide ranges ofspectral along 50 Gbaud symbol rates. Some times itsefficiency is lower in wavelength about 1.31 μm than 1.55μm, it can decrease the Phase Shifter (PS) efficiency andoccupies large amount of data rates. In this manuscript,the plus-shaped PN junction Phase Shifter (PS) isproposed. The major aim of the proposed work is to createan optimum CD type plus-shaped PS including lesser VπL.Silicon MZM including proposed PS can satisfy thehigher-speed data transmission requirement on theapplications of inter with intra data centre. The objectiveof this method is to increase the modulation efficiency(ME) by decreasing the optical loss for higher-speed datarate (DR). To get greater efficiency of modulation, the Pdoped region width and the thickness of doped regions arediffer under slabs. The simulation analysis of circuit-levelis executed in the proposed PS acquired at travelling waveelectrode (TWE) silicon Mach Zehnder modulator. In 80Gbps, the 12.39 dB maximal extinction ratio along8.67×10-8 bit error rate (BER) was acquired in VπLπ of1.05 V.cm for 3.5 mm PS length. The measured intrinsicbandwidth of 3 dB denotes ~38 GHz, whereas thetransmission energy per bit denotes 1.71pJ/bit. Moreexamines are carried out to recognize the maximalcommunication distance using proposed PS under SMZMfor the requirements of data centre.


2015 ◽  
Vol 72 ◽  
pp. 160-162 ◽  
Author(s):  
Gang Feng ◽  
Wenqing Cheng ◽  
Fujun Chen

Frequenz ◽  
2018 ◽  
Vol 72 (11-12) ◽  
pp. 561-573 ◽  
Author(s):  
Vivek Kachhatiya ◽  
Shanthi Prince

Abstract In this work, we propose a sixteen channel wavelength division multiplexed passive optical network (WDM-PON) architecture which provides seamless connectivity between mobile switching center (MSC) and base transceiver stations (BTS) and also serves the fiber to the home (FTTH) users. WDM-PON based mobile backhaul network is considered to be a prime solution due to its quick deployment and reduced cost. Due to growing demand for connectivity and data transmission, the number of wavelengths are increasing day by day. The bit error rate (BER) performance is analyzed for the discrete data rates per wavelength (viz. 2.5 Gbps, 5 Gbps, 10 Gbps, 20 Gbps, and 40 Gbps) at discrete reach for 16 channel WDM-PON. The optical spectrum of sixteen channel WDM-PON is observed for different data rates at multiplexer output and the same is analyzed after fiber distance of 20 km. The fiber reach of the WDM-PON is varied, and its effect on the performance parameter like bit error rate (BER) and Quality Factor (Q-Factor) is observed on BER analyzer for the discrete data rates per wavelength. It is found that as data rate per wavelength increases, the error-free reach of the WDM-PON system decreases. Proposed WDM-PON architecture performs superior to the compared work under similar initial conditions.


Sign in / Sign up

Export Citation Format

Share Document