DATASHEET | APRIL 2012
FIBER OPTICS
The 1772 laser component is characterized for use as a CW optical source in
CATV and DWDM networks. The 1772 is dc-coupled with a built-in TEC,
thermistor, and monitor photodiode. The device is mounted in a 14-pin, OC-48
pinout compatible butterfly package with the optical isolator mounted on the TEC.
The 1772 incorporates a high efficiency coupling scheme to deliver 40 mW, 50
mW, and 63 mW of CW optical power.
Applications
!"
#
$
Performance Highlights
Parameter
Operating Case Temperature
Wavelength
Optical Output Power
40
50
63
-
-
-
-
30
17
32
40
Min
-20
Typ
25
See Page 4
-
-
-
-
-
-
-
-
-
-
-
Max
+65
Units
°C
nm
Features
%&'(&')*
,% - +
!
+
,0 & 1
+
#
2)(1
!
!
. / ,% ) -
+
-
-
-
40
380
-163
-155
-
-
-
-
mW
mA
mA
dB/Hz
dB/Hz
dB
dB
dB
dB
Threshold Current
Operating Current
RIN
RIN Through 65 km Fiber
SMSR
Polarization Extiction Ratio (PMF pigtail)
Optical Isolation
Optical Return Loss
| REV 2012.04
DATASHEET | APRIL 2012
FIBER OPTICS
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress
ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the
operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect
device reliability.
Parameter
Operating Case Temperature
Storage Temperature
Laser Forward dc Current
Photodiode Reverse Voltage
Laser Reverse Voltage
TEC current
ESD
Symbol
T
OP
T
STG
-
V
R,MPD
-
I
TEC
-
Condition
continuous
continuous
continuous
continuous
continuous
continuous
HBM: R = 1500
Ω,
C = 100 pF
Min
-20
-40
-
-
-
-
-500
Max
+65
+85
450
10
2
1.7
500
Units
°C
°C
mA
V
V
A
V
Electrical/Optical Characteristics
Parameter
Operating Case Temperature
Optical Output Power
Threshold Current
Operating Current
Laser Bias Forward Voltage
Wavelength
Spectral Linewidth
(1)
Optical Isolation
Optical Return Loss
Sidemode Suppression Ratio
Polarization Extinction Ratio
Wavelength Drift Over T
C
Range
Relative Intensity Noise
Monitor PD Current
Monitor PD Dark Current
Thermistor Resistance
Thermistor Temp. Coefficients
TEC Current
TEC Voltage
1
Symbol
T
op
P
O
I
TH
I
OP
V
OP
λ
OP
∆λ
ISO
ORL
SMSR
PER
∆λ
TOP
RIN
I
MPD
I
D
R
TH
TC
TH
I
TEC
V
TEC
Condition
-
40 mW version, T = T
set
, I
F
= I
OP
50 mW version, T = T
set
, I
F
= I
OP
63 mW version, T = T
set
, I
F
= I
OP
BOL
40 mW version, BOL
50 mW version, BOL
63 mW version, BOL
BOL, I
F
= I
OP
T = T
set
, I
F
= I
OP
T = T
set
, I
F
= I
OP
, FWHM
-
-
-
I
F
= I
OP
T = T
OP
-
I
F
= I
OP
, V
MPD
= -5 V
I
OP
= 0 mA , V
MPD
= -5 V
T
OP
= 25
°C
T
OP
= 25
°C
-20°C < T
C
< +65°C
-20°C < T
C
< +65°C
Min
-20
40
50
63
-
-
-
-
-
-
32
40
30
17
-
-
100
-
9.5
-
-1.0
-2.0
Typ
25
-
-
-
-
-
-
-
-
See Page 4
-
-
-
-
-
-
-
-
-
10.0
-4.4
-
-
Max
65
-
-
-
40
330
380
380
2.5
1.0
-
-
-
-
40
-163
2500
0.2
10.5
-
+1.5
+3.0
Unit
°C
mW
mA
mA
V
nm
MHz
dB
dB
dB
dB
pm
dB/Hz
µA
µA
KΩ
%/°C
A
V
1. Linewidth (∆
½
)
is calculated using this formula:
∆½
=
∆
RIN(f){16π(Dλ2L/c)2f2}-1
∆
π λ
Where:
D
= fiber dispersion;
L
= fiber length (65km);
C
= velocity of light in free space (3.00E+8);
λ
= opt center wavelength
∆
RIN(f)
= RIN through fiber (RIN
65km
– RIN
0km
);
f
= the measurement frequency (860MHz)
| REV 2012.04
DATASHEET | APRIL 2012
FIBER OPTICS
Outline Drawing
Pin Assignments
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
Thermistor
Thermistor
Dc Laser Bias (-)
MPD Anode (-)
MPD Cathode (+)
Thermal Electric Cooler (+)
Thermal Electric Cooler (-)
Case Ground
Case Ground
NC
Laser Common (+), Case Ground
Laser Modulation (-)
Laser Common (+)
NC
| REV 2012.04
DATASHEET | APRIL 2012
FIBER OPTICS
ITU Grid Channel Numbering
Please contact EMCORE Sales for ITU Wavelength Channel availability.
Package Schematic
OPT OUT
1
10K
ISO
NC
14
2
13
GND
DC BIAS
3
0.1uF
choke
(-)
12
RF INPUT
4
(+)
11
(+)
GND
5
(-)
6
(+)
7
(-)
TEC
CASE
GND
10
NC
9
8
| REV 2012.04
DATASHEET | APRIL 2012
FIBER OPTICS
Laser Safety
This product meets the appropriate standard in Title 21 of the Code of Federal Regulations (CFR). FDA/CDRH Class 1M
laser product. This device has been classified with the FDA/CDRH under accession number 0220732.
All Versions of this laser are Class 1M laser product, tested according to IEC 60825-1:2007/EN 60825-1:2007
Single-mode fiber pigtail with FC/APC connectors (standard).
Wavelength = 1.5
µm.
Maximum power = 100 mW.
Because of size constraints, laser safety labeling (including an FDA class 1M label) is not affixed to the module, but
attached to the outside of the shipping carton.
Product is not shipped with power supply.
Caution: Use of controls, adjustments and procedures other than those specified herein may result in hazardous
laser radiation exposure.
Viewing the laser output with certain optical instruments (for example, eye loupes, magnifiers and microscopes)
within a distance of 100 mm may pose an eye hazard.
DANGER
INVISIBLE LASER
RADIATION
AVOID DIRECT EXPOSURE TO BEAM
Wavelength: 1.5
µ
m
DANGER
INVISIBLE LASER RADIATION
IS EMITTED FROM THE END
OF FIBER OR CONNECTOR
Avoid direct exposure to beam
Do not view beam directly with
optical instruments
Max. Output: 100mW,
Class 1M Laser Product
INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR
Class 1M Laser
Product
IEC-60825-1:20007
Max
.Output:100mW
Wavelength: 1.5
µ
m
| REV 2012.04
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