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D372-21FS 데이터시트 PDF




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부품번호 D372-21FS 기능
기능 D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications
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D372-21FS 데이터시트, 핀배열, 회로
Data Sheet
December 2000
D372-Type Digital Uncooled DFB
Laser Module for 2.5 Gbits/s Applications
Applications
s SONET OC-48/STM-16 systems
s Telecommunications
s Secure digital data systems
The low-profile D372-Type Laser Module is ideally suited for
OC-48 SONET and other high-speed digital applications.
Features
s 8-pin package suitable for SONET applications
s Narrow linewidth, distributed feedback, multiquan-
tum-well (DFB-MQW)1.3 µm laser with single-
mode fiber pigtail
s Choice of wide operating temperature ranges:
–40 °C to +85 °C or 0 °C to +85 °C
s No TEC required
s High output power: typical 2.0 mW peak power
coupled into single-mode fiber
s Hermetically sealed active components
s Internal back-facet monitor
s Built-in thermistor and bias T
s 25 input impedance
s Internal isolator
s Qualification program: Telcordia Technologies *
TA-983
Benefits
s Easily board mounted
s Gull wing leads
s No additional heat sinks required
s Low-cost alternative to industry-standard, 14-pin
isolated laser module (ILM)
s Highly efficient DFB-MQW laser structure allows
for lower threshold and drive currents, and reduced
power consumption
Description
The D372-type uncooled laser module consists of a
laser diode coupled to a single-mode fiber pigtail.
The device is available in a standard, 8-pin configu-
ration (see Figure 1 and/or Table 1) and is ideal for
long-reach (SONET) and other high-speed digital
applications.
The module includes a narrow linewidth (<1 nm),
DFB-MQW single-mode laser and an InGaAs PIN
photodiode back-facet monitor in a hermetically
sealed package.
This package is optimized for a 25 input imped-
ance and allows for dc biasing through an internal
bias T. A thermistor has been included for feedback
to board-level bias circuitry, if needed.
* Telcordia Technologies is a registered trademark of Telcordia
Technologies, Inc.




D372-21FS pdf, 반도체, 판매, 대치품
D372-Type Digital Uncooled DFB
Laser Module for 2.5 Gbits/s Applications
Data Sheet
December 2000
Electrical/Optical Characteristics (continued)
Table 3. D372-21 Electrical/Optical Characteristics (over operating temperature range unless otherwise noted)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Operating Temperature
Range
Optical Output Power
Threshold Current
Modulation Current
Slope Efficiency*
Center Wavelength
Spectral Width (–20 dB)
Side-mode Suppression
Ratio
Tracking Error
Spontaneous Emission
Rise/Fall Times
Dispersion Penalty
Optical Return Loss
Forward Voltage
Input Impedance
Monitor Current
Monitor Dark Current
Wavelength Tempera-
ture Coefficient
T
PF
ITH
IMOD
SE
λC
∆λ
SMSR
TE
PTH
tR, tF
DP
ORL
VF
R
IMON
ID
—0
CW, peak
T = 25 °C
T = full range
CW, PF = 2.0 mW, T = 25 °C
CW, IMON = const.,T = full range
CW, PF = 2.0 mW, T = 25 °C
PF = 2.0 mW, CW
PF = 2.0 mW
CW, PF = 2.0 mW
(See Reliability Information, below)
IMON = constant, CW
I = (0.9) ITH
10%—90% pulse, T = 25 °C
<60 km, 256 ps/nm
(See Reliability Information, below)
CW
At bias coil
VR= 5 V
VR= 5 V
5
2
13
7.5
61
1280
30
18
100
2
11
20
0.5
0.125
1.1
25
10
0.09
85 °C
15
50
33
55
154
1335
1
mW
mA
mA
mA
µW/mA
nm
nm
dB
1.25
50
0.150
1.0
dB
µW
ns
dB
1.6
1000
200
0.1
dB
V
µA
nA
nm/°C
* The slope efficiency is used to calculate the modulation current for a desired output power. This modulation current plus the threshold current
comprise the total operating current for the device.
† Corrected for electrical pulse fall time.
‡ VR = reverse voltage.
Reliability Information
Note, the D372-21 product does not undergo any routine dynamic testing.
A 2000-piece sample was tested at 2.5 Gbits/s for SMSR at 0 °C. In that sample, 99.5% of the devices had SMSR
values greater than 30 dB. Within the failures, 90% were for inability to achieve an extinction ration of 10 dB or
more.
Surveillance samples are tested to verify that the failure rate has not changed,
4 Agere Systems Inc.

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D372-21FS 전자부품, 판매, 대치품
Data Sheet
December 2000
D372-Type Digital Uncooled DFB
Laser Module for 2.5 Gbits/s Applications
Class IIIb Laser Product
FDA/CDRH Class IIIb laser product. All versions are Class IIIb laser products per CDRH, 21 CFR 1040 Laser
Safety requirements. All versions are Class 3B laser products per IEC * 60825-1:1993. The device has been classi-
fied with the FDA under accession number 8720010.
This product complies with 21 CFR 1040.10 and 1040.11.
8.3 µm single-mode pigtail or connector
Wavelength = 1.3 µm
Maximum power = 10 mW
Because of size constraints, labeling 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.
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
INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR
Avoid exposure to beam
Class 3B Laser Product IEC-60825M 1993 Max. Output: 10 mW Wavelength: 1.3 µm
* IEC is a registered trademark of The International Electrotechnical Commission.
Agere Systems Inc.
7

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부품번호상세설명 및 기능제조사
D372-21FS

D372-Type Digital Uncooled DFB Laser Module for 2.5 Gbits/s Applications

Agere Systems
Agere Systems

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