1751A 1550 nm DWDM DFB Laser Module
DATASHEET | FEBRUARY 2012
FIBER OPTICS
RF Characteristic
Parameter
Symbol
Condition
Min
Typ
Max
Units
Frequency Range1
Return Path
Forward Path
F
IF = 60 mA
5
40
-
-
210
860
MHz
MHz
Frequency Response1
IF = 60 mA,
TOP = 25 °C
Return Path Version 5-210 MHz
Forward Path Version 40- 860 MHz
RF Return Loss1
-
-
-
-
±0.5
±0.5
-
-
dB
dB
| S11 |
-
16
-
-
dB
IF = IOP
Note 2, 3, 4 and 5
IF = IOP
Note 2, 3, 4 and 5
IF = IOP
Note 2, 3, 4 and 5
Composite Second Order
CSO
50
-
-
dBc
Composite Triple Beat
Carrier to Noise Ratio
CTB
CNR
60
51
-
-
-
-
dBc
dB
MHz/m
A
IF = 60 mA, T = 25 °C,
Adiabatic Chirp
FM
ZIN
40
-
-
100
-
measured at 500 MHz
Nominal Input Impedance
-
25
dB
1. Measured on a 50Ω resistively matched system.
2. I OP is the bias point at which simultaneously the linearity, the min. optical power and the required operating wavelength,
OP are obtained.
λ
3. 8 channel loading with 10% OMI and 40 km fiber length.
4. Receiver thermal noise 8 pA*Hz-0.5, 0.5mA at Ith+40mA, photodiode responsivity ~1.1A/W, noise bandwidth 4.2 MHz
5. Forward band (FB=45-870 MHz): Eight channel CW measurement: channel frequencies set at 553.25, 559.25, 565.25,
571.25, 577.25, 583.25, 589.25, and 595.25 MHz. CTB measured at 553.25, 577.25, and 595.25 MHz. CSO measured at
42 MHz
6. Measured Wavelength = Operating wavelength with a tolerance of + 0.05 nm.
Electrical Schematics
Figure 1. 1751A Laser Schematic
Figure 2. 1751A Circuit Schematic
|
REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. E M C O R E reserv es the rig ht to chang e the desig n or sp ecification at any time w ithout notice.
EMCORE [ EMCORE CORPORATION ]
