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A Comprehensive Understanding of SFP Optical Transceiver

Date: 2024-01-12 12:07:00

SFP optical transceiver is still being used as an industry standard by worldwide manufacturers and providers today. It has been an industry workhorse for over 20 years in many networks such as PON, WDM, Fibre Channel, SONET, and other communications standards. This paper will give you a comprehensive understanding of SFP optical transceivers. 

What is an SFP Optical Transceiver? 
A small form-factor pluggable(SFP) optical transceiver is a hot-pluggable interface used to transmit and receive data over fiber optic cable. It consists of FP or DBF laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA), and an MCU control unit. It satisfies class-I laser safety requirements and is compatible with the SFP multi-source agreement (MSA) and SFF-8472.

Types of SFP Optical Transceiver
● Fiber Optic Cable Type
SFP optical transceiver can work over fiber optic cable and copper cable. Based on the types of fiber optic cable, SFP optical transceivers are divided into single-mode and multi-mode SFP optical transceivers. Single-mode SFP optical transceiver works with single-mode fiber. While multi-mode SFP optical transceiver works with multi-mode fiber.

Transmission Distance Range
Multi-mode SFP optical transceiver is used for shorter transmission distances up to 550m and 2km. Single-mode SFP optical transceiver is used for longer transmission distances up to 10~120km.

Transfer Rate
The trend towards higher speed and higher bandwidth is always unstoppable, from Fast Ethernet to Gigabit Ethernet, and then to 10Gb, 40Gb, 25Gb, and 100Gb Ethernet. Since the development of SFP, modernized advancements have been added to the mix. Namely, SFP+ for 10 Gigabit, SFP28 for 25 Gigabit Ethernet, QSFP for 40 Gigabit Ethernet, and QSFP28 for 100G Gigabit Ethernet are now available.

● Application
3G-SDI video SFP optical transceivers are designed to meet the high standard video transmission needs in the high definition (HD) application.
PON SFP optical transceivers are used in the optical line terminal (OLT) at the central office and the optical network terminal/unit (ONT/ONU) at the subscriber’s premises.
CWDM and DWDM SFP optical transceivers are used by telecom systems in long-distance transmission, allowing them to transmit multiple signals simultaneously on a single fiber.
BIDI SFP optical transceiver transmits and receives data to interconnected network devices (like switches or routers) via a single optical fiber. It enables users to simplify their cabling system, increasing network capacity and reducing cost.
Fibre channel SFP optical transceiver is a high-speed network technology (commonly running at 1, 2, 4, 8, 16, 32, and 128 gigabits per second rates) used to connect computer data storage to servers in the SAN data center environment.
SONET/SDH SFP optical transceiver is compatible with the SONET/SDH and ATM standard, which covers the standard range of data rates extending from OC-3/STM-1 (155 Mbps) to OC-48/STM-16 (2.488Gbps) for multi-mode (MM), short-reach (SR), intermediate-reach (IR1), and long-reach (LR1/LR2) applications.

SFP optical transceiver is used in the switch-to-switch interface, router/Server interface, HD video, PON, WDM (CWDM, DWDM), data centers, telecommunications networks, etc.

An SFP is a small optical transceiver that plugs into an SFP port on a network switch or server. It has a high data rate, is small in size, and is easy to use and deploy. Sun Telecom specializes in providing one-stop total fiber optic solutions for all fiber optic application industries worldwide. Contact us if any needs. 


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