EDFA C-Band Amplifier RedC Optical Networking's EDFA C-Band Amplifier is a self-adjusting, dynamic amplifier that enables transparent and scalable operation in an evolving WDM network environment. Based on three pending patents, the EDFA C-Band Amplifier features an extremely high dynamic gain range over a wide input power range. The Amplifier automatically maintains the output flatness and presents a low noise figure throughout its extended operating range. These capabilities are achieved through the Amplifier's all-silica fiber technology. Extended Dynamic Gain Range As opposed to standard EDFA amplifiers, which are designed to work in a specific gain range, RedC's EDFA C-Band Amplifier features an extended dynamic gain range over the entire C-band. This unique capability offers the following benefits: In system design Provides flexibility and resilience. The EDFA C-Band Amplifier can accommodate the full spectrum of EDFA applications such as Metro, Eliminates the use of Variable Optical Attenuators Long-haul and CATV. It handles fast optical power (VOAs) at EDFA input, thus presenting a low noise transients and is integrated with autonomous electronics to facilitate monitoring and controlling of its components. The Amplifier's software runs figure throughout the whole operating range. Eliminates the use of an external dynamic gain filters or power equalization at the amplifier's output. on a fast RISC processor, utilizing high-level algorithms to maintain its functionality and In deployment flexibility. RedC's EDFA C-Band Amplifier product Accommodates the upgrade and evolution of line includes pre-amplifiers, booster amplifiers, WDM networks, especially in capacity and channel and in-line amplifiers. count, thereby eliminating the replacement of deployed amplifiers that is usually necessary with a standard EDFA. Reduces the number of amplifier types in use to accommodate a wide variety of network topologies, fiber spans, and fiber losses. Ensures optimized network performance over time, compensating for fiber performance degradation, aging, and line instabilities. Remotely accommodates topology changes in a WDM network architecture, especially in a mesh configuration. Simplifies line mapping and span loss measurements E D F A C - B a n d A m p l i f i e r during the network deployment. Gain dB Performance Demonstration of RedC's Extended Operating Range Example for a 19 dBm In-Line Amplifier 37 36 35 34 33 32 32 31 30 29 28 27 26 .5dB ess Flatn 1 ed ( limit max Entire C-band (Standard) .) Entire C-band (RedC's) Ou tpu tp ow er lim ite d d Flatness limite Red Band only (19 dB m) (1.5dB max.) Constant Power Line Flatness limited (1.5dB max.) Flatness limited (1.5dB max.) Constant Gain Line 25 24 23 dB max.) Flatness limited (1.5 Flatness limited (1.5dB max.) 22 21 20 19 5dB igu ef x.) ma e mit i re l 18 17 6. d( is No Flatness limited (1.5dB max.) 16 -23 -22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 Composite Input Power Level dBm All-Fiber Dynamic Gain Equalization and Tilting Compensation Based on its patented all-silica fiber technology, RedC's EDFA C-Band Amplifier presents unique advantages: Spectral flattening of a multi-channel signal without the need for external dynamic filters or wavelength monitoring with power equalizers. This unique method, based on an internal all-silica fiber equalizer, saves the correlated insertion loss at the amplifier output stage. Equalizes and reshapes the tilt of the amplified channels. By optimizing a single amplifier, or more effectively, by remotely applying tilt adjustment on cascaded amplifiers, the Amplifier compensates for wavelength dependent loss and line non-linearities and reshapes the spectrum of the line's channels. Maintains high reliability exclusive to an all-silica fiber system. E D FA C - B a n d A m p l i f i e r EDFA C-Band Amplifier Additional Features Less than 50 sec transient time - By efficiently addressing the effect, a longer amplifier chain design can be accommodated. Allows up to 9dB mid-stage loss access - Standard EDFA amplifiers are designed to work per a specific midstage loss. RedC's EDFA C-Band Amplifier is completely flexible and automatically adjusts its operation to the measured mid-stage loss. Remote correction of SMF or DCF wavelength dependent loss Automatic gain control or automatic power control modes of operation User remote management control Variable software adjusted gain - The differences in span length or fiber loss can be addressed and remotely compensated. Simple command set - Commands are applied through a standard RS-232 port. The on-board electronics are highly integrated with the Amplifier's components, allowing an extended level of flexibility in changing amplifier parameters and monitoring its operation. Fine tuning on channel count - The channel count and wavelength can be optionally programmed to provide extra fine tuning of the Amplifier's gain. Software upgradability - Supports remote software upgrading for deployed amplifiers. Low power consumption Low mechanical profile RedC's EDFA-C In-Line Amplifier Optical Specifications Parameter Min Wavelength 1530 1562 nm Composite Input Power Level ------ 0 dBm Saturation Power Available ------ 22 dBm Gain/Channel ------ 35 Dynamic Gain Range ------ 8 dB Multi-Channel Gain Flatness at Operating Range (all gain value) ------ 0.75 dB Noise Figure ----------- 6.5 dB 0.5 psec Mid-Stage Access Loss (Optional for Double Stage Configuration) ------ 9 dB Polarization Dependent Loss ------ 0.3 dB Return Loss ------ 40 dB 0 65 0 240x145x30 mm 30 W Polarization Mode Dispresion Operating Temperature Dimensions Total Power Consumption 151x151x18 9 Max Units C RedC EDFA-C Pre-Amplifier Optical Specifications Parameter Min Max Wavelength 1529 1561 nm Composite Input Power Level -39 -20 dBm Small Signal Gain 25 35 dBm Multi-channel Gain Flatness ------ 0.75 dB Noise Figure ------ 4.5 dB Polarization Mode Dispersion ------ 0.5 psec Polarization Dependent Loss ------ 0.3 dB Return Loss ------ 40 dB 0 65 0 Operating Temperature Dimensions ------ Total Power Consumption ------ Units C 151x131x18 mm 4 W RedC EDFA-C Booster Optical Specifications Parameter Min Max Units Wavelength 1529 1561 nm -5 5 dBm Saturation Power Available ------ 22 dBm Multi-Channel Gain Flatness at Designated Gain ------ 0.75 dB Noise Figure ------ 7 dB Multi-Channel Gain Flatness at Designated Gain 1.5dB ------ 1 dB Polarization Mode Dispresion ------ 0.5 psec Mid-Stage Access Loss (Optional for Double Stage Configuration) ------ 9 dB Polarization Dependent Loss ------ 0.3 dB Return Loss ------ 40 dB 0 65 0 Dimensions ------ 151x151x18 Total Power Consumption ------ 9 Composite Input Power Level www.redcinc.com Operating Temperature C mm W RED-C Optical Networking RedC Optical Networks Ltd. 3 Tvu'ot Ha'aretz Street Tel Aviv 69546, Israel Tel: 972-3-647-6789 Fax: 972-3-647-6990