Abstract
Delta-sigma modulation is a powerful technique for optical signal processing due to its high bandwidth, noise immunity, and low cost. In this article, a theory for all-optical delta-sigma modulation is presented along with the calculation and design parameters for optical system implementation. An optical delta-sigma modulator can be used in a microwave photonic link to encode the radio frequency signal into the duty cycle of the optical pulses. Simulation results are presented that confirm the theory and also the possibility of reaching a few GHz modulation rate in a chip-level implementation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1168-1173 |
| Number of pages | 6 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 59 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 1 2017 |
| Externally published | Yes |
Keywords
- microwave photonics
- optical bistability
- optical communication equipment
- optical modulation
- optical signal processing
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering