Tunable LD Module with
Wavelength Locker
FEATURES:
• CW light source with integrated wavelength locker
• 13dBm (min.) output power
• Tunable over 4 ITU-T grid channels (2.4nm)
• Available at C Band ITU-T grid wavelengths between
1528.77-1569.99nm
• Wavelength stability better than +/-25pm drift over 20 years
operation and (0 - 70°C) case temperature variation
• Built-in optical isolator, Thermistor, TEC, Wavelength Monitor
Pin, Power Monitor Pin
• Polarization preserving (PANDA) fiber
FLD5F15CA-K
APPLICATIONS:
Long haul DWDM
Metropolitan DWDM applications at 10 Gbs
Optical Test Equipment
DESCRIPTION:
The Fujitsu Tunable LD module with Wavelength Locker (FLD5F15CA-K) is a high power
CW laser (13dBm) with polarization maintaining fiber. It is intended for use with an external
modulator. The laser can be wavelength tuned across a 2.4nm range (4 ITU-T 100Ghz
spaced channels) via adjustment of the chip temperature with the included TEC. The tuned
wavelength can be locked onto the desired ITU-T grid channel via use of the included fabry-
perot etalon. This laser is available at any of the 52 ITU-T wavelengths in the C band
(1528.77-1569.59nm). The device comes in a standard 14-pin butterfly package, operates
between 0-70°C, and requires 120mA of drive current (typical).
ABSOLUTE MAXIMUM RATINGS (Tc=25°C)
Parameter
Storage Temperature
Operating Case Temperature
Optical Output Power
Laser Reverse Voltage
Laser Forward Current
Photodiode Reverse Voltage
Photodiode Forward Current
Cooler Current
Cooler Voltage
Symbol
Tstg
Top
Pf
VR
IF
VDR
IPF
Ic
Vc
Condition
-
-
CW
-
CW
-
-
-
Note (1)
Ratings
-40 to +85
0 to +70
30
2
250
20
10
2.0
4.8
Unit
°C
°C
mW
V
mA
V
mA
A
V
Edition 1.0
March 2001
1
FLD5F15CA-K
Parameter
Laser Set Temperature
Optical Output Power
Threshold Current
Forward Voltage
Slope Efficiency
Operating Forward Current
Peak Wavelength
Wavelength Stability with
Case Temperature
Spectral Width (-3dB)
Side Mode Suppression
Monitor Current
Wavelength Monitor Current
Tracking Error (Note 1)
Optical Isolation
Extinction Ratio
Relative Intensity Noise
Cooler Current
Cooler Voltage
Thermistor Resistance
Thermistor B Constant (Note 2)
Symbol
Tset
Pf
Ith
VF
η
Iop
λ
p
Conditions
-
Tunable LD Module with
Wavelength Locker
Limits
Typ.
-
-
-
-
0.2
120
Note (3)
Unit
°C
mW
mA
V
mW/mA
mA
nm
OPTICAL AND ELECTRICAL CHARACTERISTICS AT (TL=Tset, Tc=25°C, BOL, unless otherwise specified)
Min.
11
20
3
-
-
-
Max.
51
-
45
2.2
-
200
CW, Tc=0 to +70°C
CW
CW, IF=30 mA, pin 3,13
CW, Pf=20mW,
ORL>40dB
-
CH. 1-CH.4,
ORL>40dB
Im1=constant,
Im2=constant,
Tc=0-70°C, 20 years
CW, Pf=20mW,
ORL>40dB
CW, Pf=20mW,
ORL>40dB
Pf=20mW
Pf=20mW, WL Locked
Im=constant,
Pf(Tc=25°C)=20mW,
Tc=0 to +70°C
Tc=0 to +70°C
CW, Pf=20mW
CW, Pf=20mW,
ORL>40dB, f=DC-7.5GHz
TL=Tset, Tc=+70°C,
Pf=20mW
TL
=
Tset, Tc=+70°C,
Pf=20mW
Tc, TL=+25°C
Tc, TL=+25°C
-
∆λ
Sr
Im1
Im2
TE
IS
TE/TM
RIN
Ic
Vc
Rth
B
-25
-
25
pm
-
33
0.1
0.1
-0.5
22
20
-
-
-
9.5
3,270
3
-
-
-
-
-
-
-
-
-
10.0
3,450
10
-
1.8
1.8
+1.0
-
-
-140
1.8
4.6
10.5
3,630
MHz
dB
mA
mA
dB
dB
dB
dB/Hz
A
V
kΩ
K
Note 1. TE=10*log[Pf(Tc)/Pf(25)]
Note 2. Relation between resistance and temperature (°K) is:
Rth (T) = Rth (25)*exp[B(1/T-1/298)]
Note 3. Reference Figure 5 Wavelength Table
2
Tunable LD Module with
Wavelength Locker
Fig. 1 Forward Current vs Output Power
30
25
Output Power, Pf (mW)
20
15
10
5
0
FLD5F15CA-K
Fig. 2 Temperature Dependance of
Wavelength(ACC Operation)
1551
Wavelength (nm)
1550
1549
1548
1547
10
20
30
40
0
50
100 150 200
250
Laser Temperature, TLD (°C)
Forward Current, Iop (mA)
Fig. 3 Cooler Voltage -Current
4.0
4.0
Relative Intensity (dB)
0
-20
-40
-60
-80
1540
Fig.4 Spectrum
3.0
Vc
2.0
1.0
0.0
0
10
20
30
40
50
60
70
Ic
3.0
2.0
1.0
0.0
-1.0
80
-1.0
Cooler Voltage, Vc (V)
Cooler Currnet, Ic (A)
Case Temperature (°C)
1550
1560
Wavelength
λ
(nm)
Fig. 5 Filter Curve
1100
1000
900
Im2
Im1
Im2@lock point
Im2 (µA)
800
700
600
500
400
300
1547.0
1548.0
1549.0
1550.0
1551.0
1552.0
Peak Wavelength (nm)
3
FLD5F15CA-K
Tunable LD Module with
Wavelength Locker
NOTE
This device is not available with a fiber polarization axis aligned connector. The attached Fujitsu connector is only for use
at incoming inspection. A fusion splice is the recommended method for connecting this laser to an external modulator.
4
Tunable LD Module with
Wavelength Locker
“CA” PACKAGE
17.24±0.25
15.24±0.25
PIN 7
8.25±0.5
14-0.5±0.1
PIN 1
ø5.2±0.3
8.89±0.15
12.7±0.15
15.2±0.3
2.54±0.25
5.4±0.5
5.41±0.25
14-0.1±0.05
FLD5F15CA-K
TOP VIEW
7
ø0.9±0.1
5.08±0.15
6
5
4
3
2
1
5.08±0.15
TEC
PD1
PD2
Rth
8.25±0.5
4-ø2.67±0.2
20.83±0.25
22.0±0.25
26.04±0.25
29.97±0.25
0.7±0.15
4.15±0.25
5.47±0.15
PIN 14
8.17±0.2
8
9
10
11 12 13
14
PIN 8
#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PIN DESIGNATIONS
TEMPERATURE MONITOR
TEMPERATURE MONITOR
LASER CATHODE
POWER MONITOR (ANODE)
POWER MONITOR (CATHODE)
TEHP (+)
TEHP (-)
PD2(WAVE LENGTH MONITOR) CATHODE
PD2(WAVE LENGTH MONITOR) ANODE
NC
GROUND
LASER CATHODE
LD ANODE, GROUND
NC
1500MIN.
(ø10)
23±0.7
(32)
FC-PC or FC-angled facet CONNECTOR
For further information please contact:
FUJITSU COMPOUND SEMICONDUCTOR, INC.
2355 Zanker Rd.
San Jose, CA 95131-1138, U.S.A.
Phone: (408) 232-9500
FAX: (408) 428-9111
CAUTION
Fujitsu Compound Semiconductor Products contain
gallium arsenide
(GaAs)
which can be hazardous to the human body and the environment.
For safety, observe the following procedures:
www.fcsi.fujitsu.com
FUJITSU QUANTUM DEVICES EUROPE LTD.
Network House
Norreys Drive
Maidenhead, Berkshire SL6 4FJ
United Kingdom
TEL: +44 (0) 1628 504800
FAX: +44 (0) 1628 504888
• Do not put this product into the mouth.
• Do not alter the form of this product into a gas, powder, or liquid
through burning, crushing, or chemical processing as these by-products
are dangerous to the human body if inhaled, ingested, or swallowed.
• Observe government laws and company regulations when discarding this
product. This product must be discarded in accordance with methods
specified by applicable hazardous waste procedures.
FUJITSU QUANTUM DEVICES
SINGAPORE PTE LTD.
Hong Kong Branch
Rm. 1101, Ocean Centre, 5 Canton Rd. Tsim Sha Tsui,
Kowloon, Hong Kong
TEL: +852-23770226
FAX: +852-23763269
FUJITSU QUANTUM DEVICES LIMITED
Business Development Division
11th Floor, Hachioji Daiichi-Seimei Bldg.
3-20-6 Myojin-cho
Hachioji-city, Tokyo 192-0046, Japan
TEL: +81-426-43-5885
FAX: +81-426-43-5582
Fujitsu Limited reserves the right to change products and specifications without notice. The information does not convey any license under rights
of Fujitsu Limited or others.
© 2001 FUJITSU COMPOUND SEMICONDUCTOR, INC. Printed in U.S.A. FCSI0101M200
5
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