OPTICAL COMMUNICATION SYSTEM
Patent Information
- Application Number
- DE602019065221
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2019-06-14
- Publication Date
- 2025-01-22
- Estimated Expiration
- 2039-06-14
AI Technical Summary
Dispersion in fiber-optic communication systems leads to signal spreading and inter-symbol interference, particularly as transmission bit rates increase, limiting the tolerance to dispersion and resulting in higher bit error rates.
An optical transmitter comprising a directly modulated laser (DML) and an optical band pass filter (OBPF) is used to generate a modulated optical signal with a target frequency gap between logical one and zero values, maximizing power and locking the DML with the OBPF to enhance dispersion tolerance.
The solution effectively reduces inter-symbol interference and bit error rates by establishing a target frequency gap and optimizing the power of the filtered optical signal, thereby improving the dispersion tolerance of the fiber-optic communication system.