GAO’s small form-factor pluggable known as SFP GE-FX and DWDM transceivers are types of optical transceivers used in networking and telecommunications. GAO’s SFP GE-FX transceivers are specifically designed to support Gigabit Ethernet connectivity over fiber optic cables. Our product use laser technology to transmit and receive data signals over the fiber optic medium, allowing for high-speed data transmission over long distances. DWDM which is the dense wavelength division multiplexing is used to increase the capacity of fiber optic networks by transmitting multiple wavelengths of light (channels) simultaneously over a single fiber. Each wavelength can carry its own data stream, effectively multiplying the capacity of the fiber. 

GAO’s SFP GE-FX & DWDM transceivers comprise of laser diode, photodiode, transmitter, receiver, optical connector, EEPROM (Electrically Erasable Programmable Read-Only Memory), digital diagnostic monitoring (DDM), and wavelength-specific components (DWDM Transceivers). 

The other common names of SFP GE-FX & DWDM transceivers are SFP gigabit ethernet fiber transceivers, SFP DWDM transceivers, SFP fiber optic transceivers, SFP optical transceivers, SFP laser transceivers, SFP long-reach transceivers, SFP metro transceivers, SFP extended-reach transceivers, SFP coarse wavelength division multiplexing (CWDM) transceivers, and SFP dense wavelength division multiplexing (DWDM) transceivers.

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GAOTek 100GHZ DWDM SFP+ Transceiver (80 KM)

GAOTek high quality 100GHZ DWDM SFP+ Transceiver Module 80KM transceiver module is a compact and versatile device used in optical communication networks. It operates at a frequency of 100GHz and utilizes Dense Wavelength Division Multiplexing (DWDM) technology.

GAOTek 10G SFP+ DWDM ZR with EDFA Reach of 120 km

GAOTek DWDM EDFA 10G SFP+ DWDM ZR with EDFA Reach 120 km is used in optical fiber networks to transmit multiple data signals simultaneously over a single optical fiber by using different wavelengths of light.

GAOTek 50GHz Full C-band Tunable Transceiver

GAOTek 50GHz Full C-band Tunable 11.1Gb/s 50GHz DWDM links up to 80km of G.652 fiber. The SFP+ module applications along with SONET OC-192 LR-2 and Switches, IP Routers or SONET/SDH optical interfaces.

GAOTek Active Optical Cable Fiber Transceiver

GAOTek active optical cable fiber transceiver use Active Optical Cables receptacle.

GAOTek C21 C22 Compatible 100G Transceiver

GAOTek C21 C22 Compatible 100G Transceiver supports multiple 100 G links up to 49.71 mi (80 km) using TDCM and EDFA over single-mode fiber (SMF) via a CS connector.

GAOTek Coherent DWDM

GAOTek coherent DWDM is a compact, high-capacity, low-cost OTN optical transmission system.

GAOTek Copper RJ 45 Fiber Optic Transceiver

This Copper RJ 45 Fiber Optic Transceiver has a distance of 98.43 ft to 328.08 ft, a data rate of 1 Gb/s to 10 Gb/s, and a power supply of 3.3 V.

GAOTek Crosslink SFP Compatible Series

This Crosslink SFP Compatible Series has 7 dBm to 11 dBm optical transmitter power, 3.1 V to 3.5 V power supply, and 260 ps optical rise time.

GAOTek DAC Fiber Optic

This DAC Fiber Optic has temperature of 32 °F to 158 °F, power supply of 3.3 V, wire AWG of 24 AWG, and max aggregate data rate of 41.25 Gbps.

GAOTek DDM EML Transceiver

GAOTek DDM EML transceiver consists of two sections: The transmitter section incorporates a colded EML laser.

GAOTek Dual CS Adaptor Transceiver

This Dual CS adaptor Transceiver has an operating temperature range of 32 °F to 158 °F, and power supply of 3.3 V, data rate of 103.12G.

GAOTek Dual Fiber Optical Transceiver

This Dual Fiber Optical Transceiver has a transmission rate of 1.25 G, a wavelength of 1310 nm, and an acceptance sensitivity of -19 dBm.

GAOTek Duplex LC Connector

GAOTek Duplex LC Connector offers a 10G data rate with a reach of 49.71 mi (80 km) using dense wavelength division multiplexing (DWDM) technology.

GAOTek DWDM Demultiplexer

This DWDM Demultiplexer has tempetature of 32 °F to 158 °F, data rate of 100 Gbps, channel spacing of 0.8 nm and adjacent channel isolation of 30 db.

GAOTek DWDM Dual Fiber

GAOTek DWDM dual fiber is designed in a modular fashion to accommodate distance extension without service interruption,  no condensation,consumption of <50 W(Max) and power support type: AC Power and hot swap, AC Power Plug.European standard Plug or American standard Plug is Optional.

GAOTek DWDM Equipment

GAOTek DWDM equipment is standard 5 U rack type design fully adopts the way of outlet on the front panel, provide 18 service slots, with a super high level of integration

GAOTek DWDM Equipment

GAOTek DWDM equipment is cascaded with 1 × 2 CWDM components based on proven thin-film filter technology.

GAOTek DWDM Equipment Optical Transport Network

GAOTek DWDM equipment optical transport network supports 4 x 100 G.

GAOTek DWDM Fiber Optic Media

GAOTek dwdm fiber optic media is optical signal regeneration conversion equipment based on the principle of O-E-O.

GAOTek DWDM Fiber Optic Media

GAOTek DWDM fiber optic media is optical signal regeneration conversion equipment based on the principle of O-E-O.

GAOTek DWDM Fiber Optical Amplifier

GAOTek DWDM fiber optical amplifier is a single-stage optical amplifier card which can be inserted into JTN 1800 chassis.


GAOTek DWDM mux is a high performance DWDM mux device operating on 100 GHz channel spacing without the need for temperature stabilization.


GAOTek DWDM OADM Channels in 1U Chassis or LGX package enable effortless addition or dropping of 4 Ch DWDM traffic.

GAOTek DWDM Optical Network

This DWDM Optical Network has a support system of upto 100 GHz, wavelength adjustable of 191.35 THz to 196.1 THz and 0.5 slot number.

GAO Tek’s SFP GE-FX & DWDM transceivers have the following functions: 

  • Enable Gigabit Ethernet Connectivity: GAO’s SFP GE-FX transceivers facilitate Gigabit Ethernet connectivity over fiber optic cables. Our products convert electrical signals from network devices into optical signals for transmission over the fiber optic medium. 
  • Long-Distance Reach: Our SFP GE-FX transceivers are designed for extended reach connections, allowing data transmission over longer distances than copper-based Ethernet connections. 
  • Fiber Optic Compatibility: GAO’s transceivers support fiber optic cables, both single-mode and sometimes multimode, enabling high-speed data transmission over the fiber infrastructure. 
  • Plug-and-Play Compatibility: Our SFP transceivers can be inserted or removed from compatible network devices without powering them off, providing flexibility and ease of installation or replacement. 
  • Increased Network Capacity: GAO Tek’s DWDM transceivers leverage dense wavelength division multiplexing technology to increase the capacity of fiber optic networks. Our products allow multiple wavelengths (channels) of light to be transmitted simultaneously over a single fiber, greatly expanding the network's capacity. 

GAO’s SFP GE-FX & DWDM transceivers are rugged, versatile, and precision measurement and calibrating instruments. Our products comply with applicable industrial standards such as SFP Standards, Gigabit Ethernet Standards, ITU-T G.652, DWDM Standards, ITU-T G.694.1, and IEEE 802.3z. 

GAO’s SFP GE-FX and DWDM transceivers help our customers comply with relevant U.S government regulations such as: 

  • Federal Communications Commission (FCC)  
  • Restriction of Hazardous Substances (RoHS) 
  • Trade Agreement Act (TAA)  
  • National Institute of Standards and Technology (NIST) 

GAO’s SFP GE-FX and DWDM transceivers help our customers comply with relevant Canada government regulations such as: 

  • Industry Canada Regulations 
  • Canadian Environmental Protection Act (CEPA) 
  • Canadian Standards Association (CSA)  
  • Innovation, Science, and Economic Development Canada (ISED) Certification 

GAO’s SFP GE-FX and DWDM transceivers have the following applications:  

  • Fiber-to-the-Home (FTTH): Our SFP GE-FX transceivers are used to connect customer premises equipment (CPE) to the optical distribution network, providing high-speed Gigabit Ethernet connectivity to homes and businesses. 
  • Enterprise Networks: GAO’s SFP GE-FX transceivers are used in enterprise networks to provide Gigabit Ethernet connectivity over fiber optic cables. Our products are suitable for connecting switches, routers, and other network devices to fiber optic infrastructure. 
  • Metropolitan Area Networks (MANs): Our SFP GE-FX transceivers can be deployed in MANs to enable high-speed and long-distance data transmission over fiber optic links. 
  • Internet Service Providers (ISPs) and Telecommunication Networks: GAO’s DWDM transceivers are used in ISP and telecommunication networks to carry large amounts of data traffic across their infrastructure, enabling high-speed and high-capacity data transmission. 
  • Long-Haul Networks: Our DWDM transceivers are used in long-haul networks to transmit data over long distances, typically spanning hundreds or thousands of kilometers. It helps to connect different cities or regions, providing high-capacity and high-speed data transmission. 

Our SFP GE-FX and DWDM transceivers can be shipped overnight within the continental U.S. and Canada and can be shipped globally.