Efficient Optoelectronic Link Simulation Method for Optoelectronic Integrated Circuits

Fig. 1. Schematic diagrams of input and output of waveguide and photocurrent generated by PIN diode. (a) Schematic diagram of input and output of waveguide; (b) schematic diagram of photocurrent generated by PIN diode

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Fig. 2. Schematic diagram of LS-WG-PD basic opto-electronic circuit netlist

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Fig. 3. Schematic diagram of complex opto-electronic circuit netlist

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Fig. 4. Schematic diagram of input and output of all-pass microring resonator

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Fig. 5. Frequency response of all-pass microring resonator

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Fig. 6. Light field intensity varying with time in all-pass microring resonator

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Fig. 7. Schematic diagram of LS-EAM-MRF-PD opto-electronic transceiver circuit netlist

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Fig. 8. EAM normalized optical transmission as a function of PIN junction bias voltage

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Fig. 9. Geometric structure diagram of micro-ring resonator filter

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Fig. 10. Frequency response of micro-ring resonator filter

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Fig. 11. Simulation results of opto-electronic transceiver circuit. (a) Variations of V_drive and V_pin in EAM; (b) output signals at optical ports n2, n4, and n5

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Fig. 12. Simulation results of opto-electronic transceiver circuit. (a) Photocurrents of photodetectors PD1 and PD2; (b) effect of time constant on output current of PD2

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Fig. 13. Eye diagrams of output currents from photodetector PD2 under different time constants. (a) $τ$ =1 ps; (b) $τ$ =2 ps

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Table 1. Comparison of SPICE/Verilog-A method and proposed method for simulating OEIC

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Table 1. Comparison of SPICE/Verilog-A method and proposed method for simulating OEIC

Property	SPICE/Verilog-A method	Proposed method
Signal representation	Optical signals are converted to equivalent electrical signals corresponding real and imaginary components	Optical signals are directly defined as incident and reflected waves in complex number form
Number of ports	Four equivalent electrical ports representing one bidirectional optical port	One bidirectional optical port
Model definition	Complicated modeling process due to converting optical signals into electrical signals	Building models directly with optical and electrical signals
Supported models	Electronic models	Electronic, photonic, and opto-electronic models
Support for complex numbers	No	Yes
Support for matrix operation	No	Yes
Simulation principles	KVL and KCL	KVL and KCL, signal flow graph theory
Simulation engine	Electronic circuit simulation engine	Opto-electronic multi-physics simulation engine
Simulation compatibility	EIC simulation	EIC, PIC, and OEIC simulation
Simulation accuracy	Accurate and reliable (Cadence Virtuoso)	Accurate and reliable (MATLAB)
Simulation efficiency	Higher (Cadence Virtuoso)	High (MATLAB)

Table 2. Design parameters of micro-ring resonator filter
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Table 2. Design parameters of micro-ring resonator filter
Carrier frequencyf_c /THz Coupler coefficientparameters k₁ and k₂ RadiusR₁ /μm RadiusR₂ /μm Loss $α$ /(dB/m) Effective index n_eff Group index n_g
192.186 0.359, 0.0598 3.1847 3.1831 312.7 2.35 4.3

Table 3. Simulation parameters of photodetector model in opto-electronic transceiver circuit

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Table 3. Simulation parameters of photodetector model in opto-electronic transceiver circuit

Parameter	Value	Description
R_spv	0.91 A/W	Photodiode responsivity
R_dark	10⁶ Ω	Dark current equivalent resistance
I_s	10^-14 A	Reverse bias saturation current
v_t	0.0259 V	Thermal voltage （300 K）
C	5 fF	Junction capacitance
R_s	400 Ω	Series parasitic resistance （τ=2 ps）
R_s	800 Ω	Series parasitic resistance （τ=4 ps）

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Changjun Gou, Jiachen Zhang, Yinghao Ye. Efficient Optoelectronic Link Simulation Method for Optoelectronic Integrated Circuits[J]. Acta Optica Sinica, 2025, 45(4): 0425001

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Paper Information

Category: OPTOELECTRONICS

Received: Oct. 20, 2024

Accepted: Dec. 19, 2024

Published Online: Feb. 21, 2025

The Author Email: Ye Yinghao (yhye@gzu.edu.cn)

DOI:10.3788/AOS241646

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Comparison of SPICE/Verilog-A method and proposed method for simulating OEIC

Table 1. Comparison of SPICE/Verilog-A method and proposed method for simulating OEIC

Table 2. Design parameters of micro-ring resonator filter

Table 2. Design parameters of micro-ring resonator filter

Table 3. Simulation parameters of photodetector model in opto-electronic transceiver circuit

Table 3. Simulation parameters of photodetector model in opto-electronic transceiver circuit