E2560 Datasheet, PDF (2/6 Pages) Agere Systems – E2560/E2580-Type 10 Gbits/s EML Modules

E2560/E2580-Type 10 Gbits/s EML Modules
Advance Data Sheet
January 1999
Description (continued)
The nominal input impedance of the E2560 version is 50 Ω. The package is qualified to the Bellcore TA-TSY-
000468 standard.
Both E2560 and E2580 are available in a range of ITU-T wavelengths for use in DWDM systems operating at 10
Gbits/s per channel. The device has excellent wavelength stability, supporting operation at 100 GHz channel spac-
ing over 20 years (assuming an end-of-life aging condition of <±100 pm). Typically, no external wavelength stabili-
zation is required in systems of this type, using Lucent's E2500 series EMLs. The package also offers excellent
stability of wavelength vs. case temperature, with a maximum coefficient of 0.5 pm/ °C.
Module Characteristics
Table 1. Module Characteristics
Package Type
Fiber
Connector
RF Input Impedance
Bit Rate
E2560: 7-pin package with GPO connector RF input.
E2580: 13-pin package with GPO connector RF input.
Standard single-mode fiber.
ST ^®; other connectors available on request.
50 Ω.
10 Gbits/s.
Pin Information
Table 2. Pin Descriptions
E2560
E2580
Pin Abbreviation
Definition
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
7 TEC–
Themoelectric cooler–
6 TEC+
Thermoelectric cooler+
5 BACK DET+
Monitor cathode (+)
4 BACK DET–
Monitor anode (–)
3 LASER+
Laser anode
2 THERM
Thermistor
1 THERM, LASER–, Combined thermistor/
CASE
laser cathode/case
Pin Abbreviation
Definition
13 TEC–
12 TEC+
11 VSS
10 DCA
Themoelectric cooler–
Thermoelectric cooler+
Voltage supply to the IC
Duty cycle adjust
9 OA
8 NC
7 NC
6 VEA
5 BACK DET+
Optical amplitude adjust
No connect/reserved
No connect/reserved
Modular offset (on-state)
Monitor cathode (+)
4 BACK DET–
Monitor anode (–)
3 LASER+
Laser anode
2 THERM
Thermistor
1 THERM, LASER–, Combined thermistor/
CASE
laser cathode/case
Note: For full details of pin functions and required bias levels for the version with the IC, refer to E2580 EML with Integral Driver IC: Pin
Definitions And Operation Application Note (TBD):
2
Lucent Technologies Inc.