An optical transmission system for internal interconnection of data centers based on wired-wireless convergence and its operating method
A data center and internal interconnection technology, applied in the field of optical transmission systems, can solve problems such as complex wiring, low spectral efficiency, and difficult maintenance, and achieve the effects of reducing complexity, increasing bit rate and spectral efficiency, and improving sensitivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0068] An optical transmission system for internal interconnection of data centers based on wired-wireless convergence, such as figure 1 As shown, it is used for the interconnection between two optical modules (optical module 0 and optical module 1) in the data center, including two optical modules, and each optical module includes an optical heterodyne transceiver module and an adaptive polarization demultiplexing module and an electrical signal processing module, the optical heterodyne transceiver module includes an optical transmitting module and an optical receiving module;
[0069] The optical transmission module is connected to adjacent optical modules through the first circulator, full-duplex optical fiber, and the second circulator. The optical transmission module is also connected to the adaptive polarization demultiplexing module through the first circulator. The adaptive polarization demultiplexing module , optical receiving module, and electrical signal processing ...
Embodiment 2
[0076] According to Embodiment 1, an optical transmission system for internal interconnection of data centers based on wired-wireless integration, the difference is that: the optical transmission module includes a light source and a modulator; a part of the optical signal emitted by the light source is transmitted through the modulator After polarization multiplexing and quadrature amplitude modulation, an optical signal carrying information is generated, and the other part is directly used as a local oscillator signal. The modulator is a Mach-Zehnder modulator. The multiplexing method of polarization multiplexing and the modulation method of quadrature amplitude modulation (16-QAM) are used to modulate information.
[0077] In addition to being used as an optical carrier to perform high-order modulation on the transmitted signal, the light source is also used as the local oscillator signal of the received signal to recover the received signal through heterodyne reception with...
Embodiment 3
[0080] According to the optical transmission system for internal interconnection of data centers based on wired-wireless convergence described in Embodiment 1, the difference is that: image 3 As shown, the adaptive polarization demultiplexing module includes a polarization beam splitter, two sets of phase shifters and three 3dB couplers;
[0081]The received optical signal carrying information and the local oscillator signal first pass through the polarization beam splitter, such as Figure 5 As shown, it is divided into an X polarized light signal and a Y polarized light signal, and the X polarized light signal and the Y polarized light signal are respectively input into the phase shifter through the two input ports of the 3dB coupler, and pass through two sets of the phase shifters After polarization demultiplexing is completed, the phase shift of the two sets of phase shifters is the transmission matrix of the optical fiber estimated by the electrical signal processing mod...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More