KODENSHI KLT

1550nm InGaAsP strained MQW for FP-LD Ø1.5mm ball lens TO CAN
KLT-155451x
Rev. 004
Description
KLT-155451x series are long wavelength Fabry-Perot LD sources in TO-56 package with ball lens cap
KLT-155451x series consist of an InGaAsP strained multi-quantum well(MQW) laser diode(LD) and
an InGaAs PIN-PD for output monitoring. They operate at 1550 nm wavelength band and with various
data rates from 155Mbps upto 1.25 Gbps.
They are suitable for fabricating pigtailed LD source, TOSA(transmitter optical sub assembly),
and bi-directional module.
FEATURES
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High performance strained MQW InGaAsP LD with BH(buried hetero-junction) structure
Hermetically sealed TO-56 package with Ø1.5mm ball lens cap
High reliability and environmental endurance
Operating wavelength of 1.55μm band
Wide operating temperature range from –40℃ to 85℃
Various data rates from 155Mbps upto 1.25Gbps
APPLICATIONS
● SONET OC-1~ OC-48/SDH STM-1 ~ STM-16
● 155Mbps, 622Mbps, and 1.25Gbps for ATM and Ethernet
● Suitable for fabrication of coaxial LD module, TOSA, and Bi-Di module
Absolute Maximum Ratings
Parameter
Operating temperature
Storage temperature
Peak laser output power
Peak reverse laser voltage
Peak forward monitor PD current
Peak reverse monitor PD voltage
Symbol
Top
Tstg
Po
Vrl
Ifp
Vrp
Min
-40
-40
Max
85
100
8
2
2
10
unit
℃
℃
mW
V
mA
V
Optical and Electrical Characteristics (KLT155451x, Top = 25℃ otherwise specified)
Parameter
Symbol Min
Typ
Max
Unit
Test Conditions
Top
-40
85
Operating temperature
℃
Ith
4
8
20
mA CW, kink free
Threshold current
Iop
27
35
Operating current
CW, Po=5mW
η
0.2
0.25
Slope efficiency
CW, Po=5mW
Vop
1.1
1.5
V
Operating voltage
at rated Po = 5mw
λc
1530 1550 1570
nm at rated Po = 5mw
Center wavelength
∆λ
2
5
nm at rated Po = 5mw
RMS spectral width
tr
0.5
ns 20 to 80 %, Ib = Ith,Po = 5mw
Optical rise and fall time
tr
0.5
ns 80 to 20 %, Ib = Ith,Po = 5mw
Im
0.05
mA at rated Po= 5mw , Vrp = 1V
Monitor PD current
Id
Vrp = 10V
0.1
µA
Monitor PD dark current
Cm
10
20
pF Vrp = 10V, 1MHz
Monitor PD capacitance
Note: The engineering spec can be revised without any previous notice.
1/2
For more information on other parts available, please visit our website: www.kodenshi.co.kr
KODENSHI KOREA Corp. 513-5 Eoyang-Dong, Iksan, 570-210, Korea
1550nm InGaAsP strained MQW for FP-LD Ø1.5mm ball lens TO CAN
KLT-155451x
Rev. 004
Outline Drawing
Pin connections
Pin config.
pin no. 1
pin no. 2
pin no. 3
pin no. 4
4S
Case ground
LD cathode
m-PD anode
LD anode/m-PD cathode
4G
LD anode/case ground
LD cathode
Monitor PD cathode
Monitor PD anode
Ordering information
KLT
Device Type
Wavelength
1 : FP(BH)
31 : 1310 nm
2 : DFB
55 : 1550 nm
Kodenshi 3 : CWDM-DFB 49 : 1490 nm
LD
xx:1xx0nm ±3nm(CWDM)
4 : AR LD
TO
Data Rate
Operating
Temp.
4 : 1.25 Gbps 2 : -20~70
5 : 2.5 Gbps 4 : -20~85
5 : -40~85
Package type
Pin Config.
1 : 1.5 mm ball lens
2 : 2.0mm ball lens
S : 4S type
3 : flat window
R : 4R type
4 : aspheric lens
3: 3G
G : 4G type
yB(band):O,E,S,C,L,NI,NC
2/2
For more information on other parts available, please visit our website: www.kodenshi.co.kr
KODENSHI KOREA Corp. 513-5 Eoyang-Dong, Iksan, 570-210, Korea