Features
● Optical add/drop multiplexing (OADM)
● Passive OADM add/drop 1/2/4/8 channels at remote sites
● Low insertion loss for CWDM channels
● Single-side or dual-side
● Completely passive, no power or maintenance required
● Ideal for CWDM ring structures or daisy chain applications
● Improves capacity exhaust in fiber-constrained situations
● Conserves or reclaims fiber with CWDM
● Lowest cost solution on the market
Optical Specifications
CWDM single fiber single-side OADM module
Q1: What's the Features of CWDM/DWDM OADM?
Optical drop/pass and drop/insert of single CWDM/DWDM channel for point to- point, ring- or bus configuration Entirely passive device,no power supply needed Low-cost transceivers applicable, existing equipment can still be used Fully transparent to all data rates and protocols Up to10 Gbit/s per channel Compliant to ITU-T CWDM/DWDM standards
Q2: What OADM type do you have?
HTFuture CWDM OADM modules are available in Field Module ABS Plastic Box, 19" Rack Mount Chassis and LGX Metal Cassette Box packages. The available configuration is 1, 2, 4, 8, and 16 channels. All the modules provide excellent optical performance and high reliability to ease of fiber handling and power saving solution.
Q3: Do you have 8-Channel MUX/DEMUX?
Yes, 8-Channel CWDM MUX/DEMUX (CWDM-MUX-8=) allows you to multiplex/demultiplex eight separate channels into one pair of fiber. Dual fiber is used for both the network and the GBIC connections. The eight available wavelengths are 1470nm, 1490nm, 1510nm, 1530nm, 1550nm, 1570nm, 1590nm, and 1610nm.
Q4: About OADM?
An OADM can be considered as a specific type of optical cross-connect, widely used in wavelength division multiplexing (WDM) systems for multiplexing and routing fiber optic signals. They selectively add and drop individual or sets of wavelength channels from a dense wavelength division multiplexing (DWDM) multi-channel stream. OADMs are used to cost effectively access part of the bandwidth in the optical domain being passed through the in-line amplifiers with the minimum amount of electronics.
Q5: What's passive and active modes of OADM?
OADMs have passive and active modes depending on the wavelength. In passive OADM, the add and drop wavelengths are fixed beforehand while in dynamic mode, OADM can be set to any wavelength after installation. Passive OADM uses WDM filter, fiber gratings, and planar wave guides in networks with WDM systems. Dynamic OADM can select any wavelength by provisioning on demand without changing its physical configuration. It is also less expensive and more flexible than passive OADM. Dynamic OADM is separated into two generations.
Q6: Which three stages typical OADM consists?
A typical OADM consists of three stages: an optical demultiplexer, an optical multiplexer, and between them a method of reconfiguring the paths between the optical demultiplexer, the optical multiplexer and a set of ports for adding and dropping signals. The MUX multiplexes the wavelength channels that are to continue on from DEMUX ports with those from the add ports, onto a single output fiber, while the DEMUX separates wavelengths in an input fiber onto ports. The reconfiguration can be achieved by a fiber patch panel or by optical switches which direct the wavelengths to the MUX or to drop ports. All the light paths that directly pass an OADM are termed cut-through light paths, while those that are added or dropped at the OADM node are termed added/dropped light paths.
Hot Tags: optical add drop single fiber east or west, China, manufacturers, suppliers, factory, customized, buy, price, bulk, compatible brand
