Erbium-Doped Fiber Amplifier (EDFA) - MD Series Nanovation's MD series of EDFA products is specifically designed and ideally suited for single-channel SONET/SDH, metro and access applications. They are available in Booster, Inline and Preamplifier configurations to cover the entire C-band. The product family includes an embedded microcontroller for alarm, monitoring and control functions, and the incorporated RS-232 interface permits the user to remotely program the device to suit system requirements. These EDFA products offer outstanding optical performance and a superior low noise figure. Features * 1530 - 1565nm operating wavelength ranges * High optical gain and saturated output power * Low noise figure * Internal microcontroller for monitoring, alarm and control functions * Wide operating temperature and humidity ranges * Compact packaging * Bellcore GR-1312-CORE qualified and ISO 9001 certified Applications * High performance single channel SONET/SDH, metro and access systems * Booster, Inline and Preamplifier configurations Product Description General The MD series of EDFA products has been specially designed for use in optical transmission systems and metro networks as a booster, inline, or preamplifier. A sophisticated internal electronic control system maintains the performance of the module, provides monitoring information, enables the module to be set to specific operational states, and incorporates a series of alarm signals associated with a range of potential system faults. Optical This module is based on an EDFA that is pumped with pump lasers. Input and output ports are optically isolated to maintain stable operation of the amplifier. An optical splitter on the output port taps a small amount of light onto photodiodes to enable optical power monitoring. Control System Internal electronic circuits provide the pump lasers with an electrical transient protected power supply and temperature control. A microprocessor monitors and controls the module and provides an external RS232 serial interface. A series of digital outputs provides a set of alarms that indicate a range of module and system faults. Package The units are housed within very small modules with input and output connections through single mode fiber pigtails and are fitted as standard with super-polished FC/UPC or FC/APC connectors. Other types of connectors are available on request. Operation mode ACC (Automatic Current Control) - default APC (Automatic Power Control) - optional AGC (Automatic Gain Control) - performance monitoring Electrical Electrical connection is through a standard DB25 male connector. V011 1-13 Erbium-Doped Fiber Amplifier (EDFA) - MD Series MD EDFA Typical Performance Curves Boost Configuration MD Series EDFA Electrical Interface The MD series of EDFA products is equipped with a standard DB25 male connector. The functionality of each pin is presented below: 1-14 Pin Symbol Description 1 Vcc Power Supply: +5volts DC, +/-5%, Imax=3.0 A 2 Vcc Power Supply: +5volts DC, +/-5%, Imax=3.0 A 3 Vcc Power Supply: +5volts DC, +/-5%, Imax=3.0 A 4 Vcc Power Supply: +5volts DC, +/-5%, Imax=3.0 A 5 Pout Output Power Monitor 6 Pin Input Power Monitor 7 AL1 Alarm Mode 1- Internal temperature exceeds preset value 8 AL2 Alarm Mode 2- Optical output power decreases 2dB below preset value 9 AL3 Alarm Mode 3- Pump laser current decreases 1mA below preset value 10 AL4 Alarm Mode 4- Pump laser temperature exceeds preset value 11 AL5 Alarm Mode 5- Reflected output power exceeds preset value 12 Vcc Power Supply: +5volts DC, +/-5%, Imax=3.0 A 13 GND Power supply ground / case 14 GND Power supply ground / case 15 GND Power supply ground / case 16 GND Power supply ground / case 17 GND Power supply ground / case 18 TXD RS-232 DATA OUT (TTL Levels) 19 AL6 Alarm Mode 6 - Optical input power decreases below preset value 20 N/C 21 Adis Pump laser ON/OFF toggle 22 RXD RS-232 DATA IN (TTL Levels) 23 N/C 24 Vcc Power Supply: +5volts DC, +/-5%, Imax=3.0 A 25 GND Power supply ground V011 Erbium-Doped Fiber Amplifier (EDFA) - MD Series TTL Input/Output Monitor and Control Logic Levels * The TTL input and output monitor (AL1 - AL6) and control logic (Adis) levels are presented in the following table. * The correspondence between the analog optical signal level and the analog voltage output is typical. The actual analog sensitivity coefficients are supplied with each EDFA. Function Internal Temperature Monitor (pin 7) In/Out TTL High TTL Low Out Normal Alarm Output Power Monitor (pin 8) Out Normal Alarm Pump Laser Current Monitor (pin 9) Out Normal Alarm Pump Laser Temperature Monitor (pin 10) Out Normal Alarm Reflected Output Power Monitor (pin 11) Out Normal Alarm Input Power Monitor (pin 19) Out Normal Alarm Pump Toggle Switch (pin 21) In Pumps OFF Pumps ON Analog Control Voltage (Within Normal Range) - Analog Output Range - Output Power Control Voltage (pin 5) - 0~4.7 volts - Input Power Control Voltage (pin 6) - 0~4.7 volts - Pigtail Fiber Fiber Type Standard single-mode fiber Fiber/Buffer Diameter (mm) 0.9 Pigtail Length (m) 1.0 (or user defined) Outline Drawing (all dimensions are in mm; drawings are not to scale) V011 1-15 Erbium-Doped Fiber Amplifier (EDFA) - MD Series Block Diagram Optical Parameters (over the full operating temperature range) Parameter Wavelength (ITU-T G.692) Minimum Typical Maximum 1530 - 1565 nm - -6 - - dBm Booster Input Power Units Notes -20 - - dBm Inline -40 - - dBm Preamplifier - - 17 dBm Booster - - 13 dBm Inline - - -5 dBm Preamplifier - 20 - dB Booster - 30 - dB Inline - 30 - dB Preamplifier Optical Isolation 30 35 - dB - Input Return Loss 50 - - dB UPC/APC 5.0 5.5 dB - - 0.5 dB - Saturated Output Power Signal Gain Noise Figure Polarization Dependent Gain - Polarization Mode Dispersion - - 0.2 ps - Pump Leakage - - -30 dBm - Reverse ASE Power - < -20 - dBm - Power Consumption - 10 15 W - Absolute Maximum Ratings (in accordance with Bellcore GR-1312-CORE) Parameter DC Operating Voltage Min. Typical Max. Unit +4.75 +5.0 +5.25 V - 3.0 A 0 - 70 C -25 - 85 C 5 - 85 % Current Consumption Operating Temperature Range Storage Temperature Range Operating Humidity Range 1-16 V011 Erbium-Doped Fiber Amplifier (EDFA) - MD Series Ordering Information MDX X X0 X X - X X X Connector Type 0: No connector 1: FC/UPC (standard) 2: FC/APC 3: SC/UPC 4: SC/APC Pigtail Fiber Length 0: Standard length = 1 m (standard) 1: User specify Fiber Type 0: Standard single-mode (standard) 1: User specify Output Power -5: -5 dBm 13: 13 dBm 15: 15 dBm 17: 17 dBm Input Isolator 0: With input isolator 1: Without input isolator Product Series 2: Booster 3: Line 4: Preamplifier Amplifier Type B: Booster L: Line P: Preamplifier The following table summarizes the product options and provides examples: Part Number Amplifier Type Input Power (dBm) Output Power (dBm) Gain (dB) Dimension (mm x mm x mm) MDB 200 17 001 Booster -6 17 23 150 x 124 x 20 MDL 300 13 001 Line -20 13 33 150 x 124 x 20 MDP 400 -5 001 Preamplifier -40 -5 35 150 x 124 x 20 To order or for additional information, please contact us at: Phone: 1-877-919-6266 Fax: 1-734-354-0934 Web: www.nanovation.com All data listed in this specification sheet is subjected to change without notice. Nanovation reserves the right to revise or update the data sheet. Copyright 2001 by Nanovation Technologies. V011 1-17 Erbium-Doped Fiber Amplifier (EDFA) - MD Series Safety Information and Handling Precautions EDFAs are class III laser products. Please read carefully the following safety information prior to handling and installing. The signal output of the pump laser and EDFA is invisible, yet it can be of high power level and therefore can cause damage to the eyes or skin. Please do not look at the fiber cross section directly without protection devices. There are precision optical devices inside the EDFA; therefore extreme care should be taken not to impose excess vibration or shaking. Care should also be taken in handling the pigtail fibers since they are easily broken. There are static sensitive devices inside the EDFA, please make sure proper grounding and electrical power connection. Do not attempt to open the EDFA by any unauthorized personnel. Please contact Nanovation technical support for assistance. 1-18 V011