DWDM
Dense Wavelength Division Multiplexing
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Product
Fixed Laser Source Module
Laser Source
Keysight offers a broad choice of fixed laser sources, which are available as single-wavelength and dual-wavelength modules as part of the Keysight Lightwave Solution Platform. The Keysight 8165xA Fabry-Perot laser sources can be used in conjunction with optical power meter modules for insertion loss, optical return loss and PDL measurement of broadband components and fiber. The Keysight 81663A Distributed Feedback Laser Sources are best suited for amplifier test and WDM system test applications. Keysight covers PON and common WDM wavelengths with its 81663A Distributed Feedback (DFB) laser source modules. The precise tunability around ITU-grid center wavelength gives you the flexibility to match test setups to the latest requirements of the DWDM-system. The fine-tuning allows to shift the center wavelength from one DWDM transmission channel to the adjacent channel in dense WDM systems. The built-in isolator ensures highest laser stability, even when reflections are present in the optical path.
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Product
Multifunction Platform
OSICS
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The OSICS multifunction modular platform offers the highest flexibility and largest choice of plug-ins required in fiber-optic component and system testing, particularly for DWDM system evaluations.
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Product
CATV Separate Raman Amplifier
RFA4000
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Hangzhou Huatai Optic Tech. Co., Ltd.
1. Erbium-doped Fiber Amplifier, due to the multiple cascades and the accumulation of noise caused by spontaneous emission, will reduce the system CNR greatly and thus it will limit the transmission capacity and distance of the system. Raman Amplifier is a newly designed fiber amplifier based on Stimulated Raman Scattering (SRS) effect. Raman amplifier is considered as the core technology of new generation DWDM fiber over-long communication. Compared with Erbium-Doped Fiber Amplifier, Raman amplifier has the advantage of low Noise Figure (NF), wider gain bandwidth, flexible gain spectral region and stable temperature. It is the only device that can operate in 1300~1600 nm.
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Product
C-Band DWDM VGA with Mid-Stage Access Next-Generation Variable Gain EDFA
HWA4700 (With SNMP)
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HWA4700 series is a next-generation variable gain EDFA, which with the most excellent performance and most completes functions in the market. It adopts nowadays most excellent optical performance, most advanced electronic technology and most complete software functions. Remarkable transient suppression control technology and heat management control technology let many complicated optical functions achieved. It is the most versatile multifunction optical amplifier in the market.
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Product
L-Band Separate Raman Fiber Amplifier
RFA6000
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Hangzhou Huatai Optic Tech. Co., Ltd.
1. Erbium-doped Fiber Amplifier, due to the multiple cascades and the accumulation of noise caused by spontaneous emission, will reduce the system CNR greatly and thus it will limit the transmission capacity and distance of the system. Raman Fiber Amplifier (RFA) is a newly designed fiber amplifier based on Stimulated Raman Scattering (SRS) effect. It is considered as the core technology of new generation DWDM fiber over-long communication. Compared with Erbium-Doped Fiber Amplifier, Raman amplifier has the advantage of low Noise Figure (NF), wider gain bandwidth, flexible gain spectral region and stable temperature. It is the only device that can operate in 1300~1600 nm.
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Product
Wavelength Selective Switches
WSS
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Use our modules for wavelength routing to combine, manipulate, or separate multiple WDM and DWDM signals from 100 GHz spacing down to < 25 GHz, all with no crosstalk.
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Product
Multiplexers (MUX)
WDM
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It is highly desirable to reduce the number of cables required to communicate between spaces on Navy ships due to increased weight, cost and maintenance concerns. To reduce weight and expense, copper-based NTDS parallel and serial type cables can be converted to fiber optic and multiplexed using Wavelength Division Multiplexing (WDM) technology. WDM technology allows for multiple fiber optic wavelengths to be combined in a single fiber and then separated back to individual fibers at the distant end. Using Coarse WDM (CWDM) which utilizes wavelengths 20nm apart ranging from 1271 nm to 1611 nm, provides for up to 18 optical wavelengths to be combined into a single fiber. Optionally Dense WDM (DWDM) can be used allowing for up to 160 optical wavelengths.
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Product
OTN: Framer/Mapper/FEC
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Macom Technology Solutions Holdings Inc.
MACOM’s OTN Framer/Mapper/FEC family products offer complete portfolio of solutions for 10G, 40G and 100G optical transport networks. They are ideal for high-capacity Carrier Ethernet router/switches, Packet Optical Transport systems and DWDM Transport systems. The OTN framer devices integrate high performance Serdes I/O to allow seamless connection to optical and copper modules. The provisional Tri-FEC integration supports G.709 standard RS-FEC as well as high coding gain G.975.1 I.4 EFEC and I.7 UFEC to improve optical link performance, achieve longer reach and offer interoperability flexibility.
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Product
PC Control Tunable Laser Source Modules
GM82009xx
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The GM82009C, GM820093L and GM82009CL tunable laser modules offer superior performance in testing DWDM components, AWG & PLC components, and optical amplifiers, and performing other general- purpose fiber optical test and measurement applications particularly in fiber grating sensor fast sweep testing.
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Product
950~2400MHz DVB-S 4 ways SAT-IF DWDM Optical Transmitter & Receiver
HDBS-4000DW
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HDBS-4000DW series, combine 4 pieces C-Band, 100GHz, ITU standard wavelength SAT-If optical transmitter, or optical receiver to one chassis, through DWDM, Make 4 ways optical MUX (TX) or DEMUX (RX), through one fiber, used in transmitting 4 ways different polarization SAT-IF signal of one satellite VL, VH, HL, HH with high performance. Installation flexibility.
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Product
Photoreceiver
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A lightwave digital receiver module designed for OC-192, DWDM, and Bit Error Rate Testing (BERT) of a digital optical link. The LRD-10-M is an O/E converter with post/limiting amplifier module designed for use in receivers up to 12.5 Gb/s data optical transmission systems.
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Product
80-CH 50G Athermal AWG
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Athermal AWG(AAWG) have equivalent performance to standard Thermal AWG(TAWG) but require no electrical power for stabilization. They can be used as direct replacements for Thin Film Filters(Filter type DWDM module) for cases where no power is available, also suitable for outdoor applications over -30 to +70 degree in access networks. Flyin’s Athermal AWG(AAWG) provide excellent optical performance, high reliability, ease of fiber handling and power saving solution in a compact package. Different input and output fibers, such as SM fibers, MM fibers and PM fiber can be selected to meet different applications. We can just offer 19” 1U rackmount package for 50G AWG products.
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Product
Optical Channel Monitor
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Optoplex Optical channel monitor (OCM) uses proprietary thin-film interference filter technology combined with a micro-actuator and high-speed electronics. Optical channel monitor is used to measure critical information data on optical transmission signals in DWDM networks for monitoring signal dynamics, determining system functionality, identifying performance change, and providing feedback for controling network elements so as to optimize operational performance. In particular, Optoplex Optical channel monitor can automatically scan the C-, L- or C+L-band wavelength range and precisely measure channel wavelength, power, and optical signal-to-noise ratio (OSNR). See the following schematic diagram for OCM working principle.
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Product
40-CH 100G Thermal AWG
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Flyin’s 40 channel 100G Thermal AWG(100G TAWG) is designed for use within the C -band release of DWDM system. To decrease the power dissipation of the devices in different environmental conditions, the TAWG package is special designed with selection of reliable thermal plastic with low thermal conduction, and the TAWG operating temperature is controlled by using foil resist heater or Peltier TEC with thermistor temperature sensor. Different input and output fibers, such as SM fibers, MM fibers and PM fiber can be selected to meet different applications. We can also offer different product packages, including special metal box and 19” 1U rackmount.
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Product
Passive Modules
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Choose from a range of multiplexer and demultiplexer modules supporting both CWDM and state-of-the-art DWDM applications.
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Product
EDFA Optic Amplifiers
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Wuhan Sunma Technology Co., Ltd.
With the feature of high input power, high output power, and medium optical gain, the booster amplifier operates at the transmission side of the link to amplify aggregated optical input power for reach extension.SunmaFiber booster amplifier is a low-noise, gain-flattened C-band optical erbium doped fiber amplifier (EDFA) designed to cost-effectively extend the optical link power budget for building long distance DWDM solutions.SunmaFiber also offers switches, routers and fiber converters including 10/100M, 10/100/1000M and 10G fiber converters, SFP fiber converters, manageable/unmanageable fiber converters, OEO fiber converters, POE fiber converters, fiber converter cards, and fiber converter chassis; transmitting distance from 2km(MM) to 150km(SM) with SC or LC or FC connectors.
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Product
Erbium Doped Fiber Amplifier
EDFA
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EDFAs are based on the light amplification in erbium-doped fiber, which are optically pumped by means of 980 nm or 1480 nm light sources. In this way, the light of a larger wavelength within the C or L band applied to the input of the amplifier is amplified, thus widening the range of optical communication links. EDFAs typically operate in saturation and the average signal power determines the average gain. The dynamics of EDFA are unaffected by the sequence and dynamics of a digital signal or channel interaction in DWDM systems. As a result, multiple channels can be bundled within the total erbium spectral amplification bandwidth. However, the total average output power in both cases is determined by the saturation power of the specific EDFA.
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Product
950~2400MHz DVB-S 4 Ways SAT-IF & 1 Way CATV DWDM Optical Transmitter & Receiver
HDBS-5000DW
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HDBS-5000DW series is putting C-Band ITU standard wavelength 4 SAT-IF and 1 CATV transmitter or optical receiver into a 1RU 19" standard chassis. Multiplexing 5 optic (TX) or de-multiplexing (RX) through DWDM, and transmit in one fiber. Can be used for high-quality transmission of the same satellite VL, VH, HL, HH different polarization of the 4-way SAT-IF signals and 1 way CATV signals. Installation flexibility.
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Product
100GHz DWDM Optical Add/Drop Multiplexer (CATV Overlay Multiplexer)
OADM-1001-VOA (100GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai OADM-1001-VOA is an optical Add-Drop multiplexer with 100GHz channel interval. It is based on mature thin film filter technology, sealed with metal shell, and featured with low insertion loss, high isolation, wide channel and flexible configuration. It is the ideal device to Add(insertion Add)/Drop(Tape-out Drop) a specific wavelength(OADM) in optical fiber DWDM system. OADM-1001-VOA configures a manual-adjust optical attenuation, for adjust the equilibrium the optical power between insert channel and main signal channel, which is conveniently used for VOD overlay in CATV system.
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Product
Optical Wavelength Meters
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Optical wavelength meter that uses a He-Ne laser as reference wavelength and employs the Michelson interferometer method, providing high-accuracy measurement. It can measure emission center frequencies of LDs for DWDM with high resolution and accuracy.The 8471 even provides a high sampling rate of 10 times per second, and is suitable for oscillation wavelength adjustment. In addition, its deviation display function allows wavelength variation to be measured with high resolution and accuracy.
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Product
100GHz Dense Wavelength Division Multiplexer
DWDM-1000
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Hangzhou Huatai Optic Tech. Co., Ltd.
DWDM series is based on mature thin film filtering technology and adopt metal sealing technology to encapsulate. It has the feature of flat channel bandwidth, flexible channel configuration, low insert loss and high isolation. The flexibility of channel configuration and modularized design make it convenient for system upgrading and expanding. All the Huatai products have no epoxy glue in optical line and can be used in high power optical communication system.
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Product
Module Type Amplifiers
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Optical amplifier Gain Blocks are compact in size and suitable for built-in use. FiberLabs provides a wide wavelength range of optical amplifier Gain-Blocks over the O-, S-, C- and L-bands. These Gain Blocks can be used for B-PON system using three wavelengths of 1.31 μm, 1.49 μm, and 1.55 μm (ITU-T [compliant with G.983.3]), DWDM system and 100 GbE (IEEE 802.3ba) using the 1.3 μm band.
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Product
C-Band / L-Band MWDM
WD1615/C, WD1516/L
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Hangzhou Huatai Optic Tech. Co., Ltd.
WD1615/C, WD1516/L WDM is based on mature thin film filtering tech, with wide bandwidth, flatness, low insertion loss and high isolation. It is mainly applied to EDFA and DWDM network to achieve the combination and separation of C-Band and L-Band.
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Product
12/24 CH Insertion Loss/Return Loss Automatic Testing System
CA3201
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UC INSTRUMENTS CA3201 12/24 CH INSERTION LOSS/RETURN LOSS AUTOMATIC TESTING SYSTEM is special designed for MPO/MTP fiber cable and multi-channel fiber optical devices like PLC device. It also can be easy changed into AWG DWDM devices testing system ifwe change 1310 /1550 nm light source into UC INSTRUMENTS’ tunable laser source.
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Product
Ethernet PHY
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Macom Technology Solutions Holdings Inc.
MACOM’s portfolio of 10G/25G/40G/50G/100G Ethernet Physical Layer (PHY) devices offer unparalleled performance while maintaining high density at low cost. Integrated high-speed, high performance mixed signal I/O using advanced CMOS process nodes support a variety of optical and copper connectivity interfaces allowing the Ethernet PHY product line to span rack and cluster connectivity within the data center, wireless fronthaul, midhual and backhaul connectivity for 5G wireless infrastructure, and seamlessly extend to core networks over DWDM optical links. Advanced features such as in-service eye monitors, traffic monitoring, optical module identification and link training are just a few of the advantages that MACOM’s portfolio provides for end users to leverage for faster bring up, higher reliability and smarter networks.
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Product
Wavelength Meters
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Keysight multi-wavelength meters are an essential tool for measuring DWDM signals and for calibrating and testing fixed-wavelength and tunable transmitter lasers, featuring high resolution, accuracy and repetition rate. The broadband mode extends support to high-rate modulated signals as well.
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Product
Dense Wavelength Division Multiplexer Mux & Demux Module 8 Channels 100G with LC/PC Connector
GLSUN-DWDM
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Guilin GLsun Science and Tech Group Co., LTD
WavelengthITU channels 186.6 to 196.1 THzReturn Loss≥ 45 dBDirectivity≥ 50 dBConnectorLC/PCMax. Optical Power≤ 500 mWPDL≤ 0.15 dBRelative Humidity5%~ 95%Dimension100×80×10.5 mmOperating Temperature-10℃ to +70℃Storage Temperature-40℃ to +85℃
