Five categories of 100G QSFP28modules

DateTime:2018/3/26 0:00:00

In the 100G product application market, low power consumption and small packages are being developed. The current market supports 100G BASE-LR4, OUT-4 standard optical transceiver modules, the light emitting components are mainly 4X25G EML and 4X25G DML integrated devices. 4X25G DML integrated devices have the advantages of low power consumption and low cost. Optical modules that meet the dual-rate requirements of 4X25G DML integrated devices are the future direction of development. Core Communications introduces the 4X25G DML integrated device platform and dual-rate 100G DML CFP2 LR4. 100G DML QSFP28 LR4, welcome to inquire.

      The core products introduced by SEG Communications have multiple key technologies independently researched and developed, including 100G integrated DML TOSA, 100G integrated ROSA, high frequency circuit design and packaging, etc., and overcome the technical difficulties, bringing guarantees for mass production. The module fully complies with IEEE 802.3ba international standards for 100G BASE-LR4 and the strict 28G OTU-4 standard for carrier-class dual-rate applications.

1. 100GBASE-LR4 QSFP28 Optical Module

The 100GBASE-LR4 QSFP28 optical module is generally used together with an LC single mode fiber patch cable, and the maximum transmission distance can reach 10km. The 100GBASE-LR4 QSFP28 optical module converts 4 channels of 25Gbps electrical signals into four LAN WDM optical signals, and then multiplexes them into a single channel to achieve 100G optical transmission. At the receiving end, this module demultiplexes 100G optical inputs into 4 LAN WDM optical signals.

2. 100GBASE-PSM4 QSFP28 Optical Module

The QSFP28 PSM4 optical module is a high-speed and low-power product specifically designed for optical interconnection in data communications applications. It conforms to the PSM4 MSA optical interface specification and has a hot-swappable QSFP form factor with built-in digital diagnostics. There are four independent full-duplex channels, each capable of a data rate of 25.78 Gbps.

The QSFP28 PSM4 optical module is mainly used in 40G and 100G Ethernet. High-bandwidth modules support 100GbE optical links through single-mode optical fibers.

3, 100GBASE-SR4 QSFP28 optical module

The 100GBASE-SR4 QSFP28 optical module is a parallel 100G optical module. The QSFP28 full-duplex optical transceiver provides four independent transmit and receive channels. Each function can operate at 25 Gbps at 100 meters of the OM4 MMF. The overall data rate is 100 Gbps.

When a 100GBASE-SR4 QSFP28 optical module transmits a signal at the transmitting end, the electrical signal is converted into an optical signal by a laser array and then transmitted in parallel on a strip-shaped multimode optical fiber. When the receiving termination is reached, the photodetector array converts the parallel optical signal. Parallel electrical signals.

4、100GBASE-CWDM4 QSFP28 Optical Module

The transmission rate of the QSFP28 CWDM4 optical module is 103.1Gbp. It is mainly used in areas such as computing and high-frequency trading. Its cost is significantly higher than that of the QSFP28 PSM4 optical module.

Through Coarse Wavelength Division Multiplexing (CWDM) technology, the QSFP28 CWDM4 optical module multiplexes the 1270nm, 1290nm, 1310nm, and 1330nm wavelengths onto a single-mode fiber for transmission.

5.100G QSFP28 eSWDM4 ER Transceiver

SMIC Communications' long-distance QSFP28 module uses WDM4 technology and can support links of 200 meters, 300 meters, and 400 meters through OM3, OM4, and OM5 duplex multimode fiber at 100G speeds. This module provides the industry's longest transmission distance for duplex multimode fiber solutions for 100G QSFP28 Ethernet applications. Duplex multimode fiber allows data center operators to upgrade from 10G to 100G without installing additional fiber.