CEL NX8508CG53-CC Necs ingaasp mqw-dfb laser module in coaxial package for 2.5 gb/s, cwdm application Datasheet

PRELIMINARY DATA SHEET
NEC's InGaAsP
MQW-DFB LASER MODULE
IN COAXIAL PACKAGE FOR
2.5 Gb/s, CWDM APPLICATIONS
NX8508
Series
FEATURES
• INTERNAL OPTICAL ISOLATOR
• PEAK EMISSION WAVELENGTH
λp = 1 470 to 1 610 nm (Based on CWDM)
• OPTICAL OUTPUT POWER
Pf = 2.0 mW
• OPERATING CASE TEMPERATURE RANGE
TC = -20 to +85°C
• SIDE MODE SUPPRESSION RATIO
SMSR = 40 dB
• InGaAs MONITOR PIN-PD
• WITH SC-UPC CONNECTOR
DESCRIPTION
• BASED ON TELCORDIA RELIABILITY
NEC'S NX8508 Series are 1 470 to 1 610 nm Multiple Quantum
Well (MQW) structured Distributed Feed-Back (DFB) laser
diode coaxial modules with an internal optical isolator.
These devices are ideal for 2.5 Gb/s CWDM application.
ELECTRO-OPTICAL CHARACTERISTICS (TC = -20 to +85°C, unless otherwise specified)
PART NUMBER
SYMBOLS
PARAMETER AND CONDITIONS
Pf
Optical Output Power from Fiber, CW, TC = 25°C, IF = Ith + 20 mA
Vop
Operating Voltage, CW, Pf = 2.0 mW
Ith
Threshold Current, TC = 25°C
NX8508 SERIES
UNIT
MIN.
TYP.
MAX.
mW
2.0
V
1.1
1.6
mA
10
20
50
Pth
Threshold Output Power, IF = Ith
μW
ηd
Differential Efficiency
W/A
Pf = 2.0 mW, TC = 25°C
Pf = 2.0 mW
Δηd
λp
100
0.07
0.1
0.04
Temperature Dependence of Differential Efficiency
ηd (@ TC°C)
Δηd = 10 log
ηd (@ 25°C)
dB
−3.0
−1.6
Peak Emission Wavelength, CW, Pf = 2.0 mW, TC = 25°C
nm
λp−2
λp *1
λp+2
0.12
Δλ/ΔT
Temperature Dependence of Peak Emission Wavelength, CW
nm/°C
0.08
0.10
SMSR
Side Mode Suppression Ratio, Pf = 2.0 mW
dB
30
40
Rise Time, 20-80%, Pf = 2.0 mW
ps
tr
100
Continued on next page
California Eastern Laboratories
NX8508 Series
ELECTRO-OPTICAL CHARACTERISTICS (TC = -25 to +85°C, unless otherwise specified)
PART NUMBER
SYMBOLS
NX8508 SERIES
PARAMETER AND CONDITIONS
UNIT
tf
Fall Time, 80-20%, Pf = 2.0 mW
ps
Im
Monitor Current, VR = 1.5 V, Pf = 1.0 mW
μA
ID
Monitor Dark Current
nA
VR = 1.5 V, TC = 25°C
MIN.
Tracking Error *2, Im = const.
dB
*1 Available Available for CWDM Wavelengths based on ITU-T recommendations
λp = 1 470, 1 490, 1 510, 1 530, 1 550, 1 570, 1 590, 1 610 nm
Please refer to Table A.
Table A: CWDM wavelength code (@ TC = 25°C)
WAVELENGTH
MIN. (nm)
TYP. (nm)
MAX. (nm)
47
1 468
1 470
1 472
49
1 488
1 490
1 492
51
1 508
1 510
1 512
53
1 528
1 530
1 532
55
1 548
1 550
1 552
57
1 568
1 570
1 572
59
1 588
1 590
1 592
61
1 608
1 610
1 612
CODE
*2 Tracking Error: γ
Pf
γ = 10 log
(mW)
TC = 25ºC
2.0
TC = -20 to +85ºC
Pf
0
Im
(mA)
Im
Pf
2.0
[dB]
MAX.
150
100
VR = 1.5 V
γ
TYP.
−1.0
500
1 000
0.1
10
10
100
1.0
NX8508 Series
ABSOLUTE MAXIMUM RATINGS1
SYMBOL
PARAMETER
UNIT
RATINGS
Pf
Optical Output Power
from Fiber
mW
5
IF
Forward Current of LD
mA
150
VR
Reverse Voltage of LD
V
2.0
IF
Forward Current of PD
mA
2.0
VR
Reverse Voltage of PD
V
15
TC
Operating Case
Temperature
°C
-20 to +85
Tstg
Storage Temperature
°C
−40 to +85
PACKAGE DIMENSIONS (Units in mm)
6.0
15.0
27.6±1.0
φ 7.0±0.2
0.5
7.3
0.5±0.2
8.0±0.3
20.0±1.0
6.0
20.4±1.0
2.2
φ 0.45±0.05
1.2±0.2
8.0±0.3
3.2
φ 7.0±0.2
φ 2.2
φ 0.9
Optical Fiber (SMF)
With SC Connector
28.3±1.0
φ 0.9
Optical Fiber (SMF)
With SC Connector
4.0±0.2
NX8508CGxx*1 -CC
19.5±1.0
NX8508BMxx*1 -CC
φ 0.45±0.05
12.7±0.2
16.0
17.0±0.2
PIN CONNECTIONS
7.2±0.3
1
3
2
3.7±0.3
1.0±0.1
4
4
1
Case
PD
LD
*1 Please refer to ORDERING INFORMATION.
3
2
P.C.D. = φ2.0
4–R1.25±0.2
2
3
2– φ 2.5
4
1
8.5±0.2
12.0±0.15
7.0±0.2
PIN CONNECTIONS
P.C.D. = φ2.0
PD
3
4
2
1
LD
Case
NX8508 Series
OPTICAL FIBER CHARACTERISTICS
SPECIFICATION
UNIT
Mode Field Diameter
PARAMETER
9.5±1
μm
Cladding Diameter
125±2
μm
Maximum Cladding
Noncircularity
2
%
1.6
%
0.9±0.1
mm
Maximum Core/Cladding
Concentricity
Outer Diameter
Cut-off Wavelength
1 100 to 1 270
nm
30
mm
1 000±100
mm
Minimum Fiber Bending Radius
Fiber Length
Flammability
UL1581 VW-1
SC-UPC Connector
8.99±0.5 mm
35±2 mm
Fiber Length: 1 000±100 mm
ORDERING INFORMATION
PART NUMBER
FLANGE TYPE
NX8508BMxx-CC-AZ*
NX8508CGxx-CC-AZ*
Flat Mount Flange
Vertical Mount Flange
AVAILABLE
CONNECTOR
With SC-UPC
Connector
*NOTE:
Please refer to the last page of this data sheet, “Compliance with EU Directives” for Pb-Free RoHS Compliance Infomation.
NX8508
xx-CC
Connector code
: With SC-UPC connector
Wavelength code : Refer to Table A
Package code
: Refer to PACKAGE DIMENSIONS
Life Support Applications
These NEC products are not intended for use in life support devices, appliances, or systems where the malfunction of these products can reasonably be expected
to result in personal injury. The customers of CEL using or selling these products for use in such applications do so at their own risk and agree to fully indemnify
CEL for all damages resulting from such improper use or sale.
05/03/2004
A Business Partner of NEC Compound Semiconductor Devices, Ltd.
4590 Patrick Henry Drive
Santa Clara, CA 95054-1817
Telephone: (408) 919-2500
Facsimile: (408) 988-0279
Subject: Compliance with EU Directives
CEL certifies, to its knowledge, that semiconductor and laser products detailed below are compliant
with the requirements of European Union (EU) Directive 2002/95/EC Restriction on Use of Hazardous
Substances in electrical and electronic equipment (RoHS) and the requirements of EU Directive
2003/11/EC Restriction on Penta and Octa BDE.
CEL Pb-free products have the same base part number with a suffix added. The suffix –A indicates
that the device is Pb-free. The –AZ suffix is used to designate devices containing Pb which are
exempted from the requirement of RoHS directive (*). In all cases the devices have Pb-free terminals.
All devices with these suffixes meet the requirements of the RoHS directive.
This status is based on CEL’s understanding of the EU Directives and knowledge of the materials that
go into its products as of the date of disclosure of this information.
Restricted Substance
per RoHS
Concentration Limit per RoHS
(values are not yet fixed)
Concentration contained
in CEL devices
-A
Not Detected
Lead (Pb)
< 1000 PPM
Mercury
< 1000 PPM
Not Detected
Cadmium
< 100 PPM
Not Detected
Hexavalent Chromium
< 1000 PPM
Not Detected
PBB
< 1000 PPM
Not Detected
PBDE
< 1000 PPM
Not Detected
-AZ
(*)
If you should have any additional questions regarding our devices and compliance to environmental
standards, please do not hesitate to contact your local representative.
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