KLT-255444 Datasheet, PDF (1/2 Pages) KODENSHI KOREA CORP. – 1550nm InGaAsP strained MQW 1.25Gbps DFB LD TO CAN

1550nm InGaAsP strained MQW 1.25Gbps DFB LD TO CAN
KLT-255444x
Description
KLT-255444x is long wavelength distributed feedback(DFB) laser diode(LD) sources in TO-56 package with flat
window or ball lens or aspherical lens cap.
KLT-255444x consists of an InGaAsP strained multi-quantum well(MQW) LD and an InGaAs PIN-PD for output
monitoring. It operates at 1550nm wavelength band and with data rates of 1.25 Gbps.
It is suitable for fabricating pigtailed LD source, TOSA(transmitter optical sub assembly), and bi-directional module.
FEATURES
High performance strained MQW InGaAsP LD with BH(buried hetero-junction) structure
Hermetically sealed TO-56 package with flat window or ball lens or aspherical lens cap
High reliability and environmental endurance
Operating wavelength of 1.55µm band
Operating temperature range from -20°C to 85°C
Data rates of 1.25Gbps
APPLICATIONS
SONET OC-24/SDH STM-8
1.25Gbps Gigabit Ethernet
Suitable for fabrication of coaxial LD module, TOSA, and Bi-Di module
Absolute Maximum Ratings
Parameter
Symbol
Min
Max
unit
Operating temperature
Storage temperature
T_op
-20
85
o_C
T_stg
-40
100
o_C
Peak laser forward current
If
150
mA
Peak laser reverse voltage
V_rl
2
V
Peak forward monitor PD current
I_fp
2
mA
Peak reverse monitor PD voltage
V_rp
10
V
Optical and Electrical Characteristics (Top = 25°C otherwise specified)
Parameter
Symbol Min
Threshold current
I_th
Rated output power
P_f
Operating current
I_op
Operating voltage
V_op
Slope efficiency
η
0.2
Center wavelength
λc 1530
Side mode suppression ratio
SMSR 30
Optical rise and fall time
t_r
t_f
Monitor PD current
I_m
0.05
Monitor PD dark current
I_d
Monitor PD capacitance
C_m
Note: The engineering spec can be revised without any previous notice.
Typ
7
23
5
30
65
1.1
0.25
1550
40
0.1
0.1
0.25
10
Max
15
40
40
75
1.5
1570
0.3
0.3
0.1
20
Unit
Test Conditions
CW
mA _{CW, Top = 85°C}
mW CW, kink free
mA ^{at rated Pf}
at rated P_f, T_op = 85°C
V at rated P_f
mW/mA CW, Po=5mW
nm at rated P_f
dB at rated P_f
ns 20 to 80%, I_b = I_th
ns 80 to 20%, I_b = I_th
mA at rated P_f , V_rp = 5V
µA V_rp = 5V
pF V_rp = 5V, 1MHz
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
Rev.002