OADM-Optical Add-Drop Multiplexer, Optical Multiplexers|GLsun

 GLsun OTS3000-OADM Optical Add-Drop Multiplexing Module can add or drop any one of wavelength optical signals between an optical demultiplexer and an optical multiplexera with a method of reconfiguring the paths. It enables the system to be transparent, can process any kinds of format and rate of signal, and can be deployed flexibly according to the network requirement, which has played an important role in the backbone nodes and local access.

Active Optical Cables, Qsfp+ AOC Fiber Transceiver Cables|GlsunMall

GLsun Active Optical Cables (AOC) are essentially transceiver products embedded permanently with fiber optic cables. They are used to convert electrical signals into optical for the inter-connectivity transmission of video and data communications at data rates up to 100Gb/s and link distances up to 100m. 

GLsun Active Optical Cables (AOC)

GLsun Active Optical Cables (AOC)

GLsun Active Optical Cables (AOC)

GLsun Active Optical Cables (AOC)

OTDR Tester, OTDR Fiber Cable Measuring & Testing Tools|GlsunMall

 OTDR is a precise optical fiber measuring & testing instrument widely used in the installation, maintenance, repair and monitoring of optical fiber and optical cable lines to measure the length, attenuation, connection quality and fault  of optical fiber and cable. 

GLsun OTDR

GLsun OTDR

High Power Optical Amplifier,EDFA Fiber Optic Line Protection

 GLSUN EDFA High Power Optical Amplifier is a fiber amplifier and power supply integrated in a 1RU/2RU shelf with option of Multiple output ports.

OTDR-Optical Time Domain Reflectometer, Fiber Optic Testing|GLsun

 GLsun OTS3000-OTDR Optical Time Domain Reflectometer

is a card-integrated precision testing instrument used to locate events or faults along

a fiber link within optical communication network.

It provides external Ethernet port for the user to integrate the secondary development

easily into the original monitoring system.

GLsun OTS3000-OTDR Optical Time Domain Reflectometer

GLsun OTS3000-OTDR Optical Time Domain Reflectometer

GLsun OTS3000-OTDR Optical Time Domain Reflectometer

GLsun OTS3000-OTDR Optical Time Domain Reflectometer

GLsun Optical Switches Used on Multimedia Satellites

China successfully sent two multimedia Beta phase test satellites into pre-set orbit from Taiyuan Satellite Launch Center in north China's Shanxi Province.The KL-Beta A and B test satellites were launched by a Long March 6 (CZ-6) carrier rocket at 7:01 p.m., August 4, 2021 (Beijing Time). The launch mission was a complete success.

The satellites were developed by the Innovation Academy for Microsatellites of the Chinese Academy of Sciences (IAMCAS). They are equipped with laser communication payloads, Ka-band communication payloads and Hall-effect thrusters, to carry out the test and verification of key technologies and scenario-based demonstrations such as high-speed interplanetary laser payloads, multi-beam digital payloads and electric propulsion system.

It was the 382nd flight mission for the Long March series carrier rockets, the 73rd and 74th satellites by IAMCAS, as well as a glorious moment for Guilin GLsun! Our mini 1xN mechanical optical switches were selected and used by IAMCAS to help complete the mission, after undergoing a series of strict screening and testing, including complex debugging process, ground testing and final validation test. It also marked the very first time for China-made mini mechanical optical switches being used in aerospace.

Founded in 2001, Guilin GLSUN Science and Tech Group Co., Ltd is a key member of high-tech enterprises of China National Torch Plan. With 5 subsidiaries and joint ventures, GLsun Group specializes in R&D, production, and sales of semiconductor laser chips and optical active and passive components. With over 20 years’ professional experience in the field of optical switches, GLsun’s core products include optical switches, MEMS devices and optical isolators among our wide product portfolio. GLsun strives to develop and manufacture reliable products to assist in realizing China's space dream.

Direct Attach Cables (DAC) vs Active Optical Cables (AOC)

AOC cables and DAC cables are both pre-assembled optical transceiver modules with cable, which are widely applied in data center, enterprise networks, high-performance computing connectivity, etc. Both are plug and play, and come in a variety of configurations to meet different network requirements. They are currently available in 10G SFP+, 25G SFP28, 40G QSFP+, and 100G QSFP28 data rates.

There are multiple factors (such as application, power consumption, transmission distance and budget) to consider when it comes to choosing network cabling. Knowing the advantages and disadvantages of each can help you make the correct choice.

AOC (Active Optical Cable)

Active Optical Cable (AOC) consists of multimode fiber optic cable connected to optical transceivers on both ends. It applies electrical-to-optical-electrical conversion on the cable ends to enable efficient and smooth data transmission without sacrificing compatibility with standard electrical interfaces.

Advantages of AOC

1. Greater bandwidth: AOC cables can reach a throughput up to 40Gbps without any equipment upgrades.

2. Lightweight: For the same length, AOCs are about half the size and 1/4 the weight of DACs. It is the optimal solution if data centers don’t have enough space for cabling.

3. Strong Immunity to EMI: AOCs transmit signals via fiber, which does not conduct an electric current, thus making them immune to electromagnetic interference (EMI).

Disadvantage

Higher cost compared to DAC

DAC (Direct Attach Copper Cable)

DAC cables are made from twinax copper cables, terminated with modules that provide an electrical connection directly into active equipment. DACs are the most basic form of high speed direct attach cabling that are typically used on switches in data centers. AOC cables are always active, while DAC cables can either be passive or active. Passive DAC cables are used more frequently, providing optimal solution for short distance transmission.

Advantages of DAC

1. High data rate: It can support data rate from 4Gbps to 10Gbps per channel.

2. Strong interchangeability: It is interchangeable and hot-pluggable with fiber optic modules.

3. Cost effective: It does not utilize a laser, which is the most expensive component in a transceiver; also, copper wiring is less expensive than fiber wiring.

Disadvantage

They are heavy and bulky, and are vulnerable to the effects of electromagnetic interference (EMI).

In general, DAC cables are applied for short-reach interconnection within 5 meters, and AOC cables are applied for 5-to-100-meter interconnections. If you are looking to expand or upgrade your network, it is important to source optical transceivers and related devices/equipment from a reliable supplier. As a competent manufacturer with 20 years of experience in fiber optic communication, GLsun Group offers professional network solutions and technical support.