Sidhartha Kumar Samal,
Bibhu Prasad Ganthia,
- Assistant Professor, Department of Electrical Engineering, Indira Gandhi Institute of Technology, Sarang, Dhenkanal, Odisha, India
- Assistant Professor,, Department of Electrical Engineering, Indira Gandhi Institute of Technology, Sarang, Dhenkanal, Odisha, India
Abstract
The increasing integration density and operating speed of silicon-photonic communication devices have intensified the influence of thermo-optic effects on wavelength stability, resonance alignment, optical transmission, and communication reliability. Temperature variations modify the effective refractive index and physical dimensions of photonic structures, resulting in resonance displacement and degradation of wavelength-dependent optical performance. This paper proposes a Thermo- Optical Resonance Tracking (TORT) model for adaptive wavelength stabilization in integrated optical communication systems. The proposed formulation establishes a coupled mathematical relationship between effective refractive index, thermal expansion, resonant wavelength, optical transmission, temperature-dependent optical loss, absorbed power, and thermal dynamics. A closed thermo-optical feedback mechanism is developed to describe the interaction . An adaptive wavelength-correction equation is subsequently introduced to compensate for temperature-induced resonance displacement. Furthermore, a unified optimization function incorporating wavelength error, optical loss, absorbed power, temperature deviation, and bit-error performance is formulated. A local thermal stability condition is derived to identify stable operating regions and prevent excessive thermo-optical feedback. The proposed model provides a compact analytical framework for evaluating and stabilizing wavelength-sensitive silicon-photonic devices under dynamically varying thermal conditions. The formulation applies to microring resonators, resonant modulators, optical filters, wavelength-division-multiplexed transceivers, and other integrated optoelectronic communication platforms for reliable next-generation optical communication applications.
Keywords: Silicon photonics, thermo-optic effect, wavelength stabilization, microring resonator, optical communication
[This article belongs to Trends in Opto-electro & Optical Communication ]
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Trends in Opto-electro & Optical Communication
| Volume | 16 | |
| Issue | 02 | |
| Received | 21/09/2026 | |
| Accepted | 22/09/2026 | |
| Published | 23/09/2026 | |
| Publication Time | 2 Days |