Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1536945 | Optics Communications | 2011 | 5 Pages |
Abstract
A novel method of a filterless optical millimeter-wave (MMW) signal generation with frequency octupling via a nested multimode interference (MMI) coupler is proposed for Radio-over-fiber systems. By setting the DC bias voltage applied to the central arms of MMI-b and MMI-c accurately, the optical carrier can be completely suppressed. The OSSR can be as high as about 58Â dB without optical filter and the radio frequency spurious suppression ratio (RFSSR) exceeds 32Â dB, which is the best result as we know. Simulation results suggest that when the generated optical mm-wave signal is transmitted along the standard single-mode fiber, the eye diagram is still opened after being transmitted over a 50Â km fiber.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Lei Shang, Aijun Wen, Bo Li, Tonggang Wang, Yang Chen, Ming'an Li,