LDI-1550-DFB-2.5G-20/70
OVERVIEW
LDI-1550-DFB-2.5G-20/70 is an InGaAsP MQW laser diode coupled to an optical fiber
MAIN FEATURES
• Wavelength: 1550 nm
• Cavity type: DFB
• Linewidth < 500 kHz
• Data rate up to 2.5 Gbps
• Optical power: up to 20 mW in CW mode and up to 70 mW
in pulse mode in the single-mode fiber G.657.A1
• Package types: coaxial
• Built-in monitor photodiode
APPLICATIONS
• Optical fiber communication systems with data rate up to
2.5 Gbps
• Laser systems
ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
Parameter
Value
Unit
Conditions
Laser diode forward current
IFL
140
mA
CW
500
Pulse
Laser diode reverse voltage
VRL
2
V
Photodiode reverse voltage
VRP
20
V
Photodiode forward current
IFP
2
mA
Operating temperature
Top
-40 ÷ +85
°C
Package U, B
Storage temperature
Tstg
-50 ÷ +85
°C
Soldering temperature
Tsold
260
°C
Max. 10 seconds
ELECTRICAL-OPTICAL CHARACTERISTICS (T = 25 °C)
Parameter
Min
Typ
Max
Unit
Conditions
Wavelength
λ
1547
1550
1553
nm
CW, P = 20 mW
Spectral width
Δλ
0.08
nm
CW, P = 20 mW, -20 dB, OSA
Spectral width
Δν
500
kHz
CW, P = 20 mW, delayed self- heterodyne method
Wavelength-temperature coeff.
dλ/dT
0.1
nm/°C
Side-mode suppression ratio
SMSR
40
55
dB
CW, P = 20 mW
Threshold current
Ith
8
12
mA
CW
Operating current
Iop
105
120
mA
CW, P = 20 mW
Pulse optical power
PP
60
70
mW
Pulse, Iop = 450 mA
Operating voltage
Vop
1.3
1.7
V
CW, P = 20 mW
Slope efficiency
Se
0.18
0.21
mW/mA
CW
Tracking error
Er
0.4
0.6
dB
CW, P = 3 mW, T = -40 ÷ +80 °C, SM1, SM3
Rise and fall times
tr, tf
80
120
ps
20% - 80%, Package U, B
Resonance frequency
fr
6
GHz
Monitoring output current (PD)
Im
0.2
1.5
4
mA
CW, P = 20 mW, Vrd = 5 V
Capacitance (PD)
Ct
10
20
pF
Vrd = 5 V, f = 1 MHz
Dark current (PD)
Id
100
nA
Vrd = 5 V
Pulse mode: pulse duration 10 μs, duty cycle = 0.01
Tracking error Er = max|10 lg[P(T)/P(25°C)]|, Im = const, T = Tmin ÷ Tmax
CHARACTERISTICS (T = 25 °C)
PACKAGE TYPE AND ELECTRICAL CONNECTION
商品属性 [波长] 1550 nm [功率] up to 20 mW in CW mode and up to 70 mW in pulse mode [激光器类型] DFB [封装方式] coaxial