With the acceleration of network cloudification, business traffic is rapidly concentrated in data centers, and the scale of global data centers has expanded dramatically. At present, the data center is gradually expanding to the edge of the network, and the coverage area is more extensive. For these data centers to work together, they need to exchange information with each other. This creats the need for interconnection and the DCI network (Data Center Interconnect). Currently, metro DCI and long-haul DCI are the two most important DCI application scenarios, among which, the metro DCI market is developing particularly rapidly.
GIGALIGHT's Economical Simplest Coherent Solution
Technical solution: The client side adopts 100G QSFP28 SR4/LR4 optical modules, and the OTU unit realizes the conversion of one 100GE service into one 100G coherent optical signal or two 100GE services into one 200G coherent optical signal.
2×100G Muxponder client side is configured with 100G QSFP28 SR4/LR4 optical module for docking , and the line side is configured with 100/200G CFP2 DCO optical module for docking with AWG.
Configuring the EDFA to improve the transmission power and the system receiving sensitivity,and configuring VOA for link optical power adaptive adjustment, also configuring OLP for fiber automatic switching protection.
What we provide is a platform-based system, which can be configured with different functional boards according to various needs to realize the individual needs of customers.
When the OTU unit transmits a single 100GE service, the line side is equipped with a 100G CFP2 DCO module; when two 100GE services are transmitted, the line side is equipped with a 200G CFP2 DCO module.
The OTU unit can realize centralized monitoring of the optical performance of service ports, centralized heat dissipation of color optical modules, and the open service access.
The OTU unit is composed of 100G optical modules, 100G coherent optical modules and boards, one line 100G service end-to-end, the OTU board needs to be configured with two 100G client-side optical modules, two 100G CFP2 DCO optical modules, Two lines of 100G service end-to-end. the OTU board needs to be configured with four 100G client-side optical modules and two 200G CFP2 DCO optical modules.
Electrical and optical layer functions are highly integrated in 1RU
400G/1RU coherent transmission capacity, supporting 100G/200G CFP2 coherent module
Support 150km single span, multi-level sites can reach 2000km
No PC required, offline using, can view the key monitoring information of business boards.
1U, 2U, 4U optional
Support WEB/SNMP/CLI network management
GIGALIGHT's 100G CFP2 DCO has excellent OSNR performance. In different FEC configuration modes, the altered caused by the OSNR tolerance of the 100G coherent system directly determines the number of EDFAs that can be cascaded, also limits the farthest transmission distance of the coherent system.
|100G CFP2 DCO Rx OSNR Tolerance (dB)||OSNR(Final)||OSNR Margin||Recommended number EDFA cascades||Reach(km)|
|ZR 17||6 Span， 19.3dB||2.3dB||6||>600|
|MR 15.5||10 Span， 17dB||1.5dB||10||>1000|
|LH 13||20 Span， 14dB||1dB||20||>2000|
*In the project, an EDFA span is usually 100km, and the insertion loss of each span is about 25dB.
|Number of service slots||1U||Piece||4|
|Size of base unit||1U||mm||482.6W×300D×44.5H （Including mounting brackets）|
|2U||482.6W×300D×86H （Including mounting brackets）|
|4U||482.6W×300D×176H （Including mounting brackets）|
|Power comsumption||1U||W||＜50(Fully equipped)|
Supports converting two 100GE optical signals into one 200G coherent optical signal or converting one 100GE optical signal into one 100G coherent optical signal.
AWG Card: support 40CH DWDM wavelength
Customizable DWDM 50GHZ 96 wave, using independent 1U rack.
Operating wavelength range: 1528~1564nm
35dB wide input range
Output power ≤23dBm
Support 1+1/1:1 link protection
support 1+1 wavelength protection, the minimum switching time can be <10ms
Support 0~15dB light attenuation automatic adjustment or remote manual adjustment
adjustment accuracy 0.1dB.
|OPM Card||Support the monitor of DWDM wavelength, power, signal-to-noise ratio.|
|OTDR Card||Support the location of fiber link length, loss, break point measurement and break point.|
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