1997 Uncooled, Coaxial DFB Laser Diode
1270/1290/1310/1330/1350/1370/1530/1550 nm Wide Bandwidth 300 MHz – 6 GHz
DATASHEET | MAY 2020
WIRELESS
EMCORE’s Model 1997 uncooled, coaxial DFB laser offers a low-cost solution
for next-generation, wireless linear fiber optic links. The 1997 laser module
features extended bandwidth to 6 GHz and is optimized for 5G, DAS (Distributed
Antenna Systems) and small cells applications. It is designed to enhance
bandwidth and signal integrity for delivery of consistent, reliable wireless signals
in temperature-controlled indoor environments.
These components can be cooled with external thermo-electric coolers for high-
stability or run without TEC’s to reduce power consumption. The DFB laser builds
upon EMCORE’s long history of high-performance, leading-edge designs in
wireless and high-speed digital applications. The laser diode devices are
packaged in a compact hermetic assembly together with monitor photodiode and
isolator, for flexible integration into various transmitter configurations.
Applications
5G Wireless
Distributed Antenna Systems (DAS)
Signal Distribution in L-Band and
Wireless Remoting Links
High Linearity, Low Power Fiber Links
Performance Highlights
Parameters
Operating Case Temperature Range
Optical Output Power
(1)
Frequency Range
IIP3
IIP2
F1=3495, F2=3505MHz, OMI 10%/tone
F1=5790, F2=5800MHz, OMI 10%/tone
F1=1700, F2=2100MHz, OMI 10%/tone
F1=2100, F2=3800MHz, OMI 10%/tone
Min
-40
-
300
35
30
45
40
-10
35
30
Typical
-
7
-
-
Max
75
-
6000
-
Units
°C
mW
MHz
dBm
dBm
nm
dB
dB
Features
Linear DFB Laser Design
Output Power Up to 10 dBm Available
Bandwidth > 6 GHz
RoHS Compliance
Optical Isolator
Low Power Consumption
Monitor Photodiode
-
-
-
-
-
+10
-
-
Center Wavelength
Optical Return Loss
(1)
Side Mode Suppression Ratio, CW
(1)
1.
2.
Performance at Tcase = 25°C
2-tone tests. OMI 10%/tone, 0dBm input RF power, with eval board matched laser
impedance to 50ohm.
© 2020 EMCORE Corporation | REV 2020.05
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
EMCORE is a registered trademark of EMCORE Corporation in the U.S. and other countries.
1997 Uncooled, Coaxial DFB Laser Diode
1270/1290/1310/1330/1350/1370/1530/1550 nm Wide Bandwidth 300 MHz – 6 GHz
DATASHEET | MAY 2020
WIRELESS
Absolute Maximum Ratings
1
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.
Parameters
Storage Temperature
Operating Case Temperature
Laser Diode Forward Current
Laser Diode Reverse Voltage
Photodiode Forward Current
Photodiode Reverse Voltage
Average RF Input Power
Lead Soldering Temperature/Time
Relative Humidity
ESD
Symbol
T
STG
T
OP
I
OP
V
R
I
MPD
V
MPD,R
PIN
-
RH
-
Condition/Notes
Non-Operating
Continuous
CW
Continuous
Continuous
Continuous
60 Seconds
-
Continuous
Human Body Model
Min
-40
-40
-
-
-
-
-
-
-
-500
Max
85
75
100
1.0
2
10
62
260/10
85
+500
Unit
o
o
C
C
mA
V
mA
V
dBmV
o
C/sec
%
V
1. Absolute maximum data are limited to system design only; proper device performance is not guaranteed over rating listed above.
Operation beyond these maximum conditions may degrade device performance, lead to device failure, shorter lifetime, and will
invalidate the device warranty.
Electrical/Optical Characteristics
Parameters
Optical Output Power
Threshold Current
Laser Bias Current
Forward Voltage
Slope Efficiency
Thermal Slope Efficiency
Laser Input Impedance
MPD Current
MPD Dark Current
Center Wavelength
Relative Intensity Noise
Symbol
P
O
I
TH
I
OP
V
F
SE
TSE
Z
I
MPD
I
D
λ
c
RIN
Conditions/Notes
T
case
= 25ºC
T
case
= 25ºC
Min
-
-
-
Typ
7
6
45
1.17
0.16
-
6
-
-
-
-
Max
-
15
80
1.8
-
1.2
8
2000
50
1340
-150
Unit
mW
mA
mA
V
mW/mA
-
Ω
μA
nA
nm
dB/Hz
I
op
T
case
= 25ºC, I
op
SE(Tc)/SE(25ºC)
T
case
= -20ºC to 85ºC
-
V
MPD
= 5V, I
op
V
MPD
= 5V, I
op
= 0
T
case
= 25ºC
I
op
I
op
,
T
case
= 25ºC, 3500MHz
-
0.1
0.4
2
200
-
1260
-
© 2020 EMCORE Corporation | REV 2020.05
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
EMCORE is a registered trademark of EMCORE Corporation in the U.S. and other countries.
1997 Uncooled, Coaxial DFB Laser Diode
1270/1290/1310/1330/1350/1370/1530/1550 nm Wide Bandwidth 300 MHz – 6 GHz
DATASHEET | MAY 2020
WIRELESS
Electrical/Optical Characteristics
(continued)
Parameters
Tracking Error
Optical Isolation, T
case
= 25ºC
Spectral Width (-20 dB)
Side Mode Suppression Ratio
Optical Return Loss
Symbol
∆Pf
ISO
Δλ
SMSR
ORL
Conditions/Notes
I
MON
= const
ER = 10log(P
O
/2.0) [dB]
Double Isolator
I
op
I
op
T
case
= 25ºC
Min
-1.5
45
-
30
35
Typ
-
-
0.1
45
-
Max
+1.5
-
1.0
-
-
Unit
dB
dB
nm
dB
dB
1. Referenced to base of TO header.
RF Characteristics
1997 Performance Parameter
Frequency Response Flatness
1
Input Third Order Interception Point
Input Second Order Interception Point
Symbol
|S
21
|
IIP3
IIP2
Conditions/Notes
300 MHz - 6000 MHz
F1=3495, F2=3505MHz, OMI 10%/tone
F1=5790, F2=5800MHz, OMI 10%/tone
F1=1700, F2=2100MHz, OMI 10%/tone
F1=2100, F2=3800MHz, OMI 10%/tone
Min
-
35
30
45
40
Typ
-
Max
4
Unit
dB
p-p
dBm
dBm
1. I
op
, T
case
= 25°C. Test with the laser Input pin matched to a 50Ω system.
2. 10% OMI/tone, 0dBm input RF power, 0 km fiber.
3. PDI of optical receiver is 1.5mA with PD responsivity about 0.8A/W
Package Outline Drawing (dimensions are in mm)
© 2020 EMCORE Corporation | REV 2020.05
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
EMCORE is a registered trademark of EMCORE Corporation in the U.S. and other countries.
1997 Uncooled, Coaxial DFB Laser Diode
1270/1290/1310/1330/1350/1370/1530/1550 nm Wide Bandwidth 300 MHz – 6 GHz
DATASHEET | MAY 2020
WIRELESS
Mounting Bracket
Reliability/Quality
Designed to meet qualification requirements of Telcordia
TM
(Bellcore) GR-468-CORE.
Schematic and Pinout
Schematic and Pinout A
3
PD
4
2
LD
1
Pin Definitions for Pinout A
Pin
1
2
3
4
Description
LD Anode, Case Ground
LD Cathode
PD Cathode
PD Anode
Pinout A
Bottom
© 2020 EMCORE Corporation | REV 2020.05
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
EMCORE is a registered trademark of EMCORE Corporation in the U.S. and other countries.
1997 Uncooled, Coaxial DFB Laser Diode
1270/1290/1310/1330/1350/1370/1530/1550 nm Wide Bandwidth 300 MHz – 6 GHz
DATASHEET | MAY 2020
WIRELESS
Laser Safety
This product meets the appropriate standard in Title 21 of the Code of Federal Regulations (CFR). FDA/CDRH Class 1
laser product. This device has been classified with the FDA/CDRH under accession number 0220191.
All versions of this laser are Class 1 laser product, tested according to IEC 60825-1:2007/EN 60825-1:2007
Wavelength = 1.3
μm.
Maximum power = 50 mW.
Because of size constraints, laser safety labeling (including an FDA class 1 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.
© 2020 EMCORE Corporation | REV 2020.05
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
EMCORE is a registered trademark of EMCORE Corporation in the U.S. and other countries.
京公网安备 11010802033920号
EEWORLD
