Optical signal transmitting device, optical signal receiving device and optical signal transmission system
A technology for transmitting equipment, optical signals
Active Publication Date: 2022-03-29
HUAWEI TECH CO LTD
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[0004] However, the implementation of the above-mentioned SMWD technology is limited by the technical limitations of the VCSEL material itself, and is facing the challenge of capacity expansion. At present, in the field of optical fiber data transmission, a capacity expansion solution based on wavelength division multiplexing is urgently needed.
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[0064] The following will describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0065] With the promotion of OM5 multimode fiber and the large-scale deployment of 40G / 100G data center transmission networks, short wavelength division multiplexing (short wavelength division multiplexing, SWDM) technology has gradually begun to be applied. Among them, SWDM short-wavelength division multiplexing refers to the wavelength division multiplexing (wavelength division multiplexing, WDM) technology of single-mode fiber to expand the wavelength range used in transmission from 850 nanometers (nm) ...
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The embodiment of the invention discloses optical signal transmitting equipment, optical signal receiving equipment and an optical signal transmission system, which are used for realizing mode division multiplexing and wavelength division multiplexing of multi-path transmission optical signals through a mode converter so as to realize capacity expansion of the optical signal transmission system. In the optical signal transmitting equipment, a mode converter performs phase conversion on initial optical signals transmitted in multiple paths to obtain first target optical signals transmitted in a single path, and the initial optical signals comprise a first optical signal and a second optical signal of which the wavelengths are first wavelengths and a third optical signal of which the wavelength is second wavelength; the first target optical signal comprises a third optical signal, a first optical signal transmitted in a first mode and a second optical signal transmitted in a second mode, and the first wavelength is different from the second wavelength.
Description
technical field [0001] The present application relates to the field of optical signal transmission, and in particular to an optical signal transmitting device, an optical signal receiving device, and an optical signal transmission system. Background technique [0002] With the promotion of OM5 multimode fiber and the large-scale deployment of 40G / 100G data center transmission networks, short wavelength division multiplexing (short wavelength division multiplexing, SWDM) technology has gradually begun to be applied. Among them, SWDM short-wavelength division multiplexing refers to the wavelength division multiplexing (wavelength division multiplexing, WDM) technology of single-mode fiber to expand the wavelength range used in transmission from 850 nanometers (nm) used by traditional multimode fiber to 850nm-950nm. [0003] At present, in the data transmission process using SWDM technology, a cost-effective short-wave vertical cavity surface-emitting laser (vertical-cavity su...
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IPC IPC(8): H04J14/02H04J14/04H04B10/25H04B10/50H04B10/60
CPCH04J14/0227H04B10/503H04B10/60H04J14/0307H04J14/052H04J14/05H04B10/2581
Inventor 文玥张文斗
Owner HUAWEI TECH CO LTD