Alcatel 1926 SDH STM-16 / OC-48 SDH / SONET integrated modules Compact High Power DWDM Transmitter Description These transmitters are intended to be used in Dense Wavelength Division Multiplexed (DWDM) at SDH and SONET bit rates. The modules are housed in a space-saving 24-pin package, providing the same electrical access for overall DWDM applications. These transmitter modules contain an in-house cooled DFB laser with a laser driver and temperature control loop. Selectable functions are provided as wavelength selection and reference clock for retiming. The Alcatel 1926 SDH family is a range of transmitter and receiver modules, providing convenient and flexible optical interfaces for SDH / SONET systems operating from 100 Mbit/s to 2.7 Gbit/s and exceeding the applicable ITU-T G.957, ITU-T G.783, ITU-T G.691, ITU-T G.692 and Telcordia GR-253-CORE standards. Upward compatibility is guaranteed between Alcatel 1926 SDH single channel and Alcatel 1926 SDH WDM multi-channel modules. Features New International Standard Multisource Optical Interfaces Upward compatibility with the different features DWDM Transmitter for Long-Haul 1 800 ps/nm (> 90 km) From 100 Mbit/s to 2.7 Gbit/s (FEC) bit rate Operating at 1.5 µm wavelength Full performance in operating case temperature from -5 to + 70 C Space-saving package 37 cm² Alcatel Reliability and Qualification Program for built in quality High optical output power 10 mw typical 2 wavelengths selectable ITU-T G.692; 100 GHz grid (±0.1nm) Clocked or Non-Clocked mode selectable Ultra low jitter generation Digital laser degraded alarm Temperature Deviation Alarm Monitoring for back facet PD current Power supplies: + 5 V and + 3.3 V Power consumption: 3 W typical Applications Used in transmission systems for Long Haul, Metro, Enterprise and Access markets, the Alcatel 1900 SDH family operates at SONET OC-48 and OC-192 rates as well as at ITU-T SDH rates of STM-16 and STM-64. Covering all types of SDH / SONET optical interfaces (tributaries and aggregates) the Alcatel 1900 SDH modules are suitable for line systems, local loop systems, Add Drop Multiplexers and digital cross-connects as well as ATM systems. As part of the global Alcatel 1900 SDH family, the Alcatel 1926 SDH WDM high optical power module is the first version for all types of DWDM STM-16 (Long-Haul and Ultra-Long-Haul) and DWDM OC-48 (Long- Reach and Ultra-Long-Reach) optical interfaces. These modules ensure ease of use and offer new flexibility to system designers. Contents Description...1 Features...1 Applications...1 Absolute maximum ratings...2 Optical characteristics...2 Electrical characteristics...3 Mechanical details...4 Pin out...4 Pin description...4 Qualification and reliability...5 Device marking...5 Shipment packing...5 Deliverable data...5 Laser safety information...5 Handling...5 Ordering information...6 May 2001-1/6
Absolute Maximum Ratings Exposing the device to stresses above those listed in absolute maximum rating could cause permanent damage. The device is not meant to operate under conditions outside the limits described in the operational sections of this specification. Exposure to absolute maximum rating conditions for extended periods may adversely affect device reliability. Parameters Symbol Min Max Unit Storage temperature Tstg -40 85 C Operating temperature Top -5 70 C Soldering temperature (10 seconds maximum) 250 C Axial pull force on fiber 10 N coaxial direction with fiber feed trough for 10 second. Fiber bend radius from package 30 mm (1.2 in.) minimum. Positive supply voltage V CC -0.3 +6 V TEC supply voltage V TEC -0.3 +3.5 V HF single ended input voltage Vin 2 Vpp Control input voltage -0.3 VCC V Alarm output voltage -0.3 VCC V Alarm output current -0.5 +20 ma Optical Characteristics Minimum and maximum parameters are specified End-of-Life within the overall relevant operating temperature range unless otherwise stated. Typical values are referenced to +25 C, nominal power supply, beginning of life. Optical characteristics are guaranteed with up to 24dB Line optical return loss. Parameters Test conditions Sym. Min Typ Max. Unit Optical source type Direct Modulated Laser Dispersion Note 1 1800 ps/nm Average optical output power Operating P AVG 6 8 9 dbm Center wavelength range See Ordering λ c 1528.77 1563.86 nm Information part Spectral width Under modulation λ 0.3 0.6 nm @ -20dB Wavelength deviation over BOL (Note 2) λτ -50 50 pm temperature Wavelength deviation aging EOL (Note 2) λτ -100 100 pm EOL= Side Mode Suppression Ratio SMSR 30 db Dispersion penalty at BER 10-10 1800ps/nm S 2 db Shutdown optical power idle (Note 3) P idle -40 dbm Extinction ratio Note 4 E r 8.2 db Eye opening According to ITU-T Rec. G957. FIGURE 2 Pigtail characteristics Pigtail length end of body to the 890 1090 mm end of the connector 35 43 in. Fiber type According to ITU-T G652, Single mode fiber, tight buffer ( =900 µm) Connector type FC/PC or SC/PC Note 1 : Based on ITU-T G.692 section 6.4.2. Note 2 : Limits are based on Telcordia 2918 section 7. Note 3 : Measured at the connector interface. P(1) Note 4 : Er = 10*log P(0) where P(1) is the power emitted during a light on state and P(0) is the power emitted during a light off state on the fiber. May 2001-2/6
Electrical characteristics Unless otherwise specified the characteristic limits apply over the following conditions: Supply voltage VCC [+4.75V..+5.25V] Case temperature range [-5 C..+70 C] Line bit rate 2.488 Gbit/s ± 20ppm Line code NRZ PRBS 2 23-1 Line extinction ratio 8.2dB. Parameters Test conditions Sym. Min Typ Max Unit Positive supply voltage Note 5 Vcc 4.75 5 5.25 V Positive supply current Icc 520 ma TEC supply voltage Note 5 Vcc 3.1 3.3 3.5 V TEC supply current Icc 1200 ma Power dissipation Pc 3 5.2 W Input data/clock voltage Note 6 Single-ended Input Differential Input Vin Vin 0.5 0.25 0.8 0.4 1.3 0.65 Vpp Vpp Electrical input data return loss (50Ω) 0.1GHz < f< 1.2GHz Rld -12 db 1.2GHz <==f < 2GHz -10 Electrical input clock return loss (50Ω) 0.1GHz < f < 2.7GHz Rlc -10 db Normalized back-facet voltage Note 5 V BF 375 500 625 mv Back-facet voltage accuracy Note 7-25 +25 % Laser bias monitor voltage Note 8 V LBM 20 mv/ma Bias voltage accuracy Note 9-10 +10 % Logic level high output voltage Isrc > 150µA V OH 3.5 V Logic level low output voltage Isink < 4mA V OL 0.44 V Alarm response time - 10 ms SD high input voltage Isrc=-1µA VIH 2 V Note 10 SD low input voltage Isink=200µA VIL 0.8 V SDC activation time - 5 ms SDC deactivation time 250 ms Input clock duty cycle - 40 50 60 % Input clock tolerance - 100 2700 MHz Data set up time Note 11-70 ps Data hold time Note 11-70 ps Data jitter Note 12 0.2 UIpp Note 5 : Voltage are measured taking GND as a reference. Note 6 : Internally AC coupled to 50Ω load. This sensitivity is achieved by applying a signal on one input while the other one is tied to ground or by applying two complementary signals on both inputs. Note 7 : accuracy defined with 20mV offset voltage. Note 8 : Monitor bias voltage is measured with a GND reference. For directly modulated laser the bias monitor voltage is related to the laser threshold current. Note 9 : Accuracy ± 10% with ± 20 mv offset voltage. Note 10 : When open, the Shut Down control input is considered in the low state, internal pull-down. Note 11 : The clock falling edge of CKi is taken as a reference related to the Di data pattern transition. Note 12 : Measured with a wide band oscilloscope on the eye diagram. May 2001-3/6
Pin out N Symb Description N Symb Description 1 G ND TEC Ground / Ground TEC 24 V CC Positive power supply 2 BACK(+) Monitoring back facet current 23 G ND Ground 3 LDA Laser Degrade Alarm 22 CKI False clock input 4 SDC Shut Down Command 21 G ND Ground 5 SELC Clock mode select 20 CKI True clock input 6 G ND Ground 19 GND Ground 7 TDA Temperature Deviation Alarm 18 DI False data input 8 SCL/NUC Clock I²C bus (for future use)/no User Connection 9 SDA/NUC Data I²C bus (for future use)/no User Connection 17 G ND Ground 16 DI True data input 10 WSC Wavelength Selection Command 15 G ND Ground 11 G ND Ground 14 V TEC TEC supply voltage 12 NIC No Internal Connection 13 V CC Positive power supply Mechanical details 13 24 12 1 Pin description DI DI CKI NRZ Data Input True: AC coupled input. A logical one is related to a light on state on the optical fiber. Data line is retimed at the input of the module by the input clock signal when the function is selected. NRZ Data Input False: AC coupled input. A logical zero is related to a light on state on the optical fiber. Data line is retimed at the input of the module by the input clock signal when the function is selected. True Clock Input: AC coupled input. The rising edge is in the middle of the data pattern. CKI False Clock Input: AC coupled input. The falling edge is in the middle of the data pattern. SDC Shut Down Command: TTL compatible input. When high the module in the shut down mode (no optical output power). When open (or low) the module is in the operating mode. SELC Clock Mode Select Command: TTL compatible input. When low (or open) the module operates in the clocked mode. When high the module operates in the non clocked mode. WSC Wavelength Selection Command: TTL compatible input. When low (or open) the nominal "n" ITU-T channel number is selected. When high the "n-1" ITU-T wavelength channel is selected. LDA Laser Degrade Alarm: TTL compatible output. When provided a digital alarm indicates that the laser is degraded. The active level is a low level. TDA Temperature Deviation Alarm: TTL compatible output. Digital alarm output indicating a temperature related wavelength shift from the center wavelength of a given ITU-T channel. A logical high level (activation) indicates a temperature deviation corresponding to a ± 100 pm wavelength shift. BACK(+) Back Facet Monitor: Analog output. Voltage proportional to the normalized monitoring PIN current depending on the optical output power. SDA Data I²C bus: TTL compatible input / output (for future use). SDC Clock I²C bus: TTL compatible input (for future use). NUC No User Connection. This lead must be left open. NIC No Internal Connection. May 2001-4/6
Qualification and Reliability In order to secure all his customers, Alcatel Optronics launch a complete qualification program. This qualification is based on manufacturer s qualification in agreement with Telcordia GR-253-Core specification (Generic Reliability Assurance Requirements for Optoelectronic Devices Used In Telecommunications Equipment), MIL STD 883D, ITU-T G652, G.957, G.783, G-691, IEC68-2 and Telcordia TR-EOP-000063 either for external manufacturers or Alcatel Optronics. The qualification program is divided in two steps : In order to quickly qualify the main interfaces, a pre-qualification phase evaluates the level of robustness of SDH components and estimates the potential mechanical stress due to the mounting process of the different parts in the package. A qualification phase with complete functional tests before and after each reliability tests evaluates the reliability data on whole module. Device marking The device shall be legibly and permanently marked with the following information: Alcatel logo Product family name: A 1926 SDH Product code : 3CN number (see Ordering information section) Serial number Shipment packing Each device is individually packed in an anti-static container and in such a manner as to prevent damage in transit. Two devices can be delivered within the same packaging. The packing shall include the following information: Alcatel logo Product family name : A 1926 SDH Product code : 3CN number (see Ordering information section) Serial number Hazard warning label (ESD) Laser Safety Class Label Deliverable data The following data shall be supplied with each device (at nominal supply voltage and ambient temperature) : Manufacturing date λ cn Central wavelength P AVG n optical average power λ cn-1 Central wavelength P AVG n-1 optical average power I cc Positive Supply current I TEC TEC Supply current @ λ cn BACK n (+) back-facet voltage for λ cn Laser Safety information Take appropriate precautions to prevent undue exposure to naked eye. This product is classified Class 3A Laser Product according to IEC-825-1. LASER RADIATION AVOID EXPOSURE TO BEAM Class 3A laser product Handling This product is sensitive to electrostatic discharge and should not be handled except at a static free workstation. Take precautions to prevent ESD; use wrist straps, grounded work surfaces and recognized anti-static techniques when handling the Alcatel 1926 SDH module. Handle the laser module by its package only, never hold it by its pigtail. Care should be taken to avoid supply transient and over voltage. Over voltage above the maximum specified in absolute maximum rating section may cause permanent damage to the device. ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DISCHARGE SENSITIVE DEVICES May 2001-5/6
Ordering information Alcatel 1926 SDH Dispersion Peak Power Part Number (ps/nm) mw L-16.2 WDM 1 800 10 3CN 00xxx yy xxx : 443 FC/PC connector 469 SC/PC connector yy : wavelength options : first wavelength second wavelength FD : n = 1563.86 nm ; n - 1 = 1563.05 nm FB : n = 1563.05 nm ; n - 1 = 1562.23 nm EZ : n = 1562.23 nm ; n - 1 = 1561.42 nm EX : n = 1561.42 nm ; n - 1 = 1560.61 nm EV : n = 1560.61 nm ; n - 1 = 1559.79 nm ET : n = 1559.79 nm ; n - 1 = 1558.98 nm ER : n = 1558.98 nm ; n - 1 = 1558.17 nm EP : n = 1558.17 nm ; n - 1 = 1557.36 nm EM : n = 1557.36 nm ; n - 1 = 1556.55 nm EK : n = 1556.55 nm ; n - 1 = 1555.75 nm EH : n = 1555.75 nm ; n - 1 = 1554.94 nm EF : n = 1554.94 nm ; n - 1 = 1554.13 nm ED : n = 1554.13 nm ; n - 1 = 1553.33 nm EB : n = 1553.33 nm ; n - 1 = 1552.52 nm DZ : n = 1552.52 nm ; n - 1 = 1551.72 nm DX : n = 1551.72 nm ; n - 1 = 1550.92 nm DV : n = 1550.92 nm ; n - 1 = 1550.12 nm DT : n = 1550.12 nm ; n - 1 = 1549.32 nm DR : n = 1549.32 nm ; n - 1 = 1548.51 nm DP : n = 1548.51 nm ; n - 1 = 1547.72 nm DM : n = 1547.72 nm ; n - 1 = 1546.92 nm DK : n = 1546.92 nm ; n - 1 = 1546.12 nm DH : n = 1546.12 nm ; n - 1 = 1545.32 nm DF : n = 1545.32 nm ; n - 1 = 1544.53 nm DD : n = 1544.53 nm ; n - 1 = 1543.73 nm DB : n = 1543.73 nm ; n - 1 = 1542.94 nm CZ : n = 1542.94 nm ; n - 1 = 1542.14 nm CX : n = 1542.14 nm ; n - 1 = 1541.35 nm CV : n = 1541.35 nm ; n - 1 = 1540.56 nm CT : n = 1540.56 nm ; n - 1 = 1539.77 nm CR : n = 1539.77 nm ; n - 1 = 1538.98 nm CP : n = 1538.98 nm ; n - 1 = 1538.19 nm CM : n = 1538.19 nm ; n - 1 = 1537.40 nm CK : n = 1537.40 nm ; n - 1 = 1536.61 nm CH : n = 1536.61 nm ; n - 1 = 1535.82 nm CF : n = 1535.82 nm ; n - 1 = 1535.04 nm CD : n = 1535.04 nm ; n - 1 = 1534.25 nm CB : n = 1534.25 nm ; n - 1 = 1533.47 nm BZ : n = 1533.47 nm ; n - 1 = 1532.68 nm BX : n = 1532.68 nm ; n - 1 = 1531.90 nm BV : n = 1531.90 nm ; n - 1 = 1531.12 nm BT : n = 1531.12 nm ; n - 1 = 1530.33 nm BR : n = 1530.33 nm ; n - 1 = 1529.55 nm May 2001 Copyright 2000 Alcatel Optronics Customized versions are available for large quantities. Performance figures contained in this document must be specifically confirmed in writing by Alcatel Optronics before they become applicable to any particular order or contract. Alcatel Optronics reserves the right to make changes to the products or information contained herein without notice. EUROPE Route de Ville just 91625 Nozay Cedex France Tel : (+33) 1 64 49 44 39 Fax : (+33) 1 64 49 49 61 USA 15036, Conference Centre Drive CHANTILLY - VA 20151 Tel : (+1) 703 679 3600 Fax : (+1) 703 679 6667 CANADA 45, De Villebois, suite 200 Gatineau (PQ) Canada, J8T 8J7 Tel : (+1) 819 243 3755 Fax : (+1) 819 243 3354 JAPAN Dai-Tokyo Kasai Shinjuku Building 13F 3-25-3, Yoyogi, Shibuya-Ku Tokyo 151 0053 Japan Tel : (+81) 3 5302 4341 Fax : (+81) 3 5302 4331 May 2001-6/6