Binary-Phase Shift Keying Based Time-Domain Index Modulation Signal Detection with Low Power Local Oscillator
Abstract
This paper investigates Binary-Phase Shift Keying (BPSK) based Time-Domain Single Carrier Index Modulation (TDSC-IM) optical signaling for next generation very high speed Passive Optical Network (VH-PON) systems that use coherent detection. Our preliminary 2.5 GBaud experiments demonstrated that the sensitivity gain attainable with TDSC-IM signaling can be used to reduce local oscillator power at receivers. This paper details additional experiments with the higher baud rate of 12.5 Gbaud and confirms the reproducibility of optical signal detection with 7 dB lower local oscillator power with the assistance of a newly developed adaptive finite-impulse response filter applicable to TDSC-IM optical signaling.
Fields of Study & Subjects
Optical Network Technologies
Advanced Photonic Communication Systems
Optical Wireless Communication Technologies
Publication details
- Journal / source
- IEICE Communications Express
- Volume
- 15
- Issue
- 5
- Pages
- 126–129
- Publication date
- 16 March 2026
- Language
- EN