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Bidirectional DWDM transmission using a beat-frequency-locking method
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- Issue Date
- 2001-08
- Citation
- IEEE Photonics Technology Letters, v.13, no.8, pp.899-901
- ISSN
- 1041-1135
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- A beat-frequency-locking method was proposed to achieve dense wavelength division multiplexing (DWDM) in bidirectional optical systems. The proposed method was tested experimentally using node-A and node-B connected by a single mode fiber (SMF). The method stabilized the relative channel frequency offset between the two communicating nodes. The relative channel frequency offset was controlled by using a 16-bit microprocessor within the wavelength control circuit. The analysis suggested that the method accurately allocated the channels at the other node without using wavelength lockers.
- KSP Keywords
- Control Circuit, Dense wavelength division multiplexing(DWDM-PON), Optical System, Single-mode fiber(SMF), Wavelength control, Wavelength-Division multiplexing(WDM), beat frequency, frequency offset