Product Portfolio
AMS Technologies product portfolio includes a range of selected optical amplifiers for many data transmission tasks, but also for test/measurement, sensing or LIDAR applications or detection of gas absorption.
For operation in both the C and L communication bands, AMS Technologies provides a selection of cw and pulsed Erbium- (Er-)Doped Fiber Amplifiers (EDFAs) as well as Yb/Er Co-Doped Fiber Amplifiers (YEDFAs) in a wide range of configurations and gains.
Our series of and consist of very small form factor modules with a cooler-less pump laser that offer economical amplification of up to eight channels for a wide range of applications in the C-band.
combine state-of-the-art control electronics, firmware and highly reliable optics within a small form factor package. As a direct, low-cost drop-in replacement of existing high-cost EDFAs, the are designed for compact, economical single-channel or banded channel amplification for a variety of optical signals.
Available in 20 dB and 15 dB versions, compact miniature size EDFA modules are designed for optical communication and CATV systems and can be used as a power amplifier, in-line amplifier or pre-amplifier.
High-power EDFA modules offer an output optical power of up to 27 dBm. The EDFA modules consist of a 980 nm or 1480 nm pump laser to provide energy, operate in AGC, ACC or APC mode and can work across the C-band. High-speed, pulsed EDFA modules are available as single mode (SM) as well as polarization maintaining (PM) versions.
Compact, powerful, stable and reliable Yb/Er Co-doped high-power Fiber Amplifier modules (also as multi-port YEDFA modules) are designed for FTTx, CATV, FDC and HFC analog amplification applications that require high reliability, while polarization maintaining (PM) YEDFA modules are especially developed for PM transmission, sensors and LIDAR applications.
EDFA racks are available in 19 inch, 1 U format, also as polarization maintaining (PM) EDFA racks, as well as YEDFA racks or PM YEDFA racks, all featuring Ethernet or serial network interfaces, capable to support open network management protocol (SNMP) as an option and adding flexibility to maintain connectivity with the customer's network management system.
Multiport high-power EDFA racks in 19 inch, 2 U format feature a dual stage amplification configuration, pre-amplifier and power amplifier. Also available as FWDM versions, they use selected multi-channel splitters with extremely low insertion loss and high reliability.
Our Raman fiber amplifier module can be used for optical signal amplification in ultra-long-haul and Dense Wavelength Division Multiplexing (DWDM) systems to increase transmission distance. The module uses multi-pump laser multiplexer technology to achieve flat-gain, low-noise optical signal amplification across the C-band through a combination of different types of pump lasers and fiber type.
Related Products
Our fiber amplifiers can be used with our broad range of optical fibers, patch cables, bundles and assemblies, driven by our various lasers and light sources.
Beyond fiber amplifiers, further fiber components are available like collimators and focusers, light to fiber couplers/collimators, fiber connectors, mating sleeves and adapters, fiber WDMs, combiners, splitters and couplers, fiber attenuators and polarization controllers, as well as fiber optic circulators, delay lines, filters, isolators, switches and other fiber optic assemblies.
Our portfolio of precision optics includes optical lenses, optics assemblies, optical filters, optical prisms, optical mirrors, optical beamsplitters, etalons, optical gratings, optical isolators, optical attenuators and polarization optics as well as optical scanners and deflectors or optical modulators, q-switches and pockels cells.
For mounting, adjusting and moving our optical components with high precision, we carry an array of optomechanics and motion control such as optical mounts, rotary and translation stages plus motion controllers as well as optical tables, breadboards and platforms.
Definition
Amplifying repeater links are a vital aspect in maintaining high performance and in providing a route to low cost in optical communication networks. Through adequate reamplification at multiple stages along a transmission path, an optical signal can maintain signal integrity over a much greater distance between points at which the optical signal is finally converted into an electronic signal.
A fiber amplifier amplifies an optical light signal passing through it without converting it into electricity in between – unlike regenerators, which first convert light into electricity, amplify it and finally convert it back into light. In a fiber amplifier, the signal to be amplified triggers a stimulated emission in an (usually doped) optical fiber. The optical power for this stimulated emission is provided by pumping lasers (most often laser diodes), which excite the dopant atoms to a higher level – with the input signal then stimulating these atoms to release the excess energy as photons of the same phase and wavelength. Hence, in principle, a fiber amplifier works like a laser without a resonator or mirror.
Fiber amplifiers are offered as single or multi-channel components with fiber pigtails, but also as modules in which the inputs and outputs can be realised not only with fiber pigtails but also with common fiber connectors. In addition to the actual amplifiers, the electronics for the pump diodes as well as other functions such as stabilisation, filters, power monitoring, etc. are integrated in these modules.
Fiber amplifiers are available based on fibers doped with Erbium (Er), Ytterbium (Yt), or other elements. Erbium-Doped Fiber Amplifiers (EDFAs) are the most common, but Ytterbium- (YDFAs) and Ytterbium/Erbium-Co-Doped (YEDFAs) Fiber Amplifiers are also often used. The main areas of application are fiber-optic transmission links of great length or widely branched fiber-optic networks. EDFAs amplify all channels of a Wavelength Division Multiplex (WDM) signal simultaneously, while a regenerator has to perform optical/electrical conversion for each channel.
Raman amplifiers are based on stimulated Raman scattering; the irradiated high-intensity pump wave is scattered by the optical fiber molecules. In principle, this process can also take place spontaneously, but here it is stimulated by the light signal to be amplified in the (Silica) fiber. Last but not least, with a combination of several pump sources, Raman amplifiers usually have a high bandwidth compared to EDFAs, including the C- and L-bands. The amplification range can be adjusted via the pump wavelength(s). Because the entire fiber represents the Raman medium, the amplification takes place over the entire fiber length, which can lead to an improved signal-to-noise ratio.
Alternative Terms: Fiber Optic Amplifier; Erbium-doped Fiber Amplifier; EDFA; Ytterbium-doped Fiber Amplifier; YDFA; Ytterbium/Erbium Co-doped Fiber Amplifier; YEDFA; Gain Block; Raman Fiber Amplifier; Raman Amplifier
