Data
sheet
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Thinking optical solutions
980 nm Pump Laser
Module - Grating
Stabilised, 300 mW
These lasers are designed as pump sources for erbium
doped fibre amplifier (EDFA) applications. Processes and
techniques of coupling the fibre to the laser allow high
output powers that are very stable with both time and
temperature. The grating is located in the pigtail to stabilise
the wavelength.
Devices are available with kink free output powers to 300 mW.
The LC94 series pump module utilises a double Fibre Bragg
Grating design for enhanced wavelength and power stability
performance. This product has been designed to ensure
superior wavelength locking over drive current, temperature
and optical feedback changes.
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Features
Wavelength stabilised
High output powers up to 300
mW kink free
Single mode fibre pigtail
Internal thermoelectric heatpump
and monitor photodiode
Hermetically sealed 14 pin
butterfly package
Telcordia GR-468-CORE
compliant
Double Fibre Bragg grating
stabilisation
Field proven high reliability
Applications
Low noise erbium doped fibre
amplifiers (EDFAs)
Dense wavelength division
multiplexing (DWDM) EDFAs
CATV Applications
Parameter
Min
Typ
Max
Unit
Threshold current (I
th
)
30
40
mA
Operating drive current (I
f
)
ZC thru ZD
250
mA
ZE thru ZF
300
mA
ZG thru ZJ
350
mA
ZK thru ZM
400
mA
A thru B
450
mA
C thru E
500
mA
F thru K
550
mA
L
600
mA
Forward voltage
1.9
2.5
V
Peak wavelength (
p)
974
980
nm
Spectrum stability (t = 60 secs)
0.5
nm
Temperature dependence of peak wavelength
0.02
nm/C
Wavelength tolerance
0.5
nm
Monitor detector responsivity
1.0
8
25
A/mW
Monitor dark current
50
nA
Thermistor resistance (at 25C)
9.5
10
10.5
k
Intended laser submount operating temperature
20
25
30
C
Laser temperature, R = 10k
23.5
26.5
C
Heatpump current (
T = 50C, If = 500 mA)
1.3
A
Heatpump voltage (
T = 50C, If = 500 mA)
2.8
V
Characteristics
Conditions unless otherwise stated:
Case temperature
-20 to +75C
Submount temperature
25C
Monitor diode bias
-5 V
CW operation
Kink free fibre coupled output power:
LC94ZC74-20
100 mW
LC94ZD74-20
110 mW
LC94ZE74-20
120 mW
LC94ZF74-20
130 mW
LC94ZG74-20
140 mW
LC94ZH74-20
150 mW
LC94ZJ74-20
160 mW
LC94ZK74-20
170 mW
LC94ZL74-20
180 mW
LC94ZM74-20
190 mW
LC94A74-20
200 mW
LC94B74-20
210 mW
LC94C74-20
220 mW
LC94D74-20
230 mW
LC94E74-20
240 mW
LC94F74-20
250 mW
LC94G74-20
260 mW
LC94H74-20
270 mW
LC94J74-20
280 mW
LC94K74-20
290 mW
LC94L74-20
300 mW
For kink free powers beyond 300 mW please contact your sales representative.
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Package Outline Drawing and Dimensions
Dimensions are in mm.
Parameter
Min
Max
Unit
Operating temperature
-20
75
C
Storage temperature
-40
85
C
Laser forward current
800
mA
Laser reverse voltage
2
V
Heatpump current
1.5
A
Lead soldering temperature (10s max)
260
C
Fibre bend radius
30
mm
Absolute Ratings
Grating (flexible)
Module
(leads not shown)
Grating Details
5cm MAX length
(280
m dia. MAX)
Separation
10 +/- 2 cm
150 +/- 10 cm
100 +/- 10 cm
4 x 2.54
6 x 2.54
9
9
MIN
12.7
4.59
0.5 x 0.05
26
30
21
10.1
6
5
4.5
8.2
17.25
15.2
Figure 1: Package Outline Drawing and Dimensions
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Thinking optical solutions
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Pin #
Description
Pin #
Description
1
Peltier cooler (+)
8
Not connected
2
Thermistor
9
Not connected
3
Monitor anode (-)
10
Laser anode (+)
4
Monitor cathode (+)
11
Laser cathode (-)
5
Thermistor
12
Not connected
6
Not connected
13
Case ground
7
Not connected
14
Peltier cooler (-)
Connections
7 6 5 4 3 2
1
8 9 10 11 12 13 14
Figure 2: Connections
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Ordering Information
Order Code No:
LC94ZC74-20 for 100 mW device
LC94ZD74-20 for 110 mW device
LC94ZE74-20 for 120 mW device
LC94ZF74-20 for 130 mW device
LC94ZG74-20 for 140 mW device
LC94ZH74-20 for 150 mW device
LC94ZJ74-20 for 160 mW device
LC94ZK74-20 for 170 mW device
LC94ZL74-20 for 180 mW device
LC94ZM74-20 for 190 mW device
LC94A74-20 for 200 mW device
LC94B74-20 for 210 mW device
LC94C74-20 for 220 mW device
LC94D74-20 for 230 mW device
LC94E74-20 for 240 mW device
LC94F74-20 for 250 mW device
LC94G74-20 for 260 mW device
LC94H74-20 for 270 mW device
LC94J74-20 for 280 mW device
LC94K74-20 for 290 mW device
LC94L74-20 for 300 mW device
The above codes are for a 974 nm device.
Other wavelengths may be supplied on request.
IEC60825-1: Edition 1.2
INVISIBLE LASER
RADIATION AVOID
EXPOSURE TO BEAM
CLASS 3B LASER PRODUCT
DANGER
INVISIBLE LASER RADIATION
AVOID DIRECT
EXPOSURE TO BEAM
OUTPUT POWER 400 mW
WAVELENGTH >960 nm
Class: IIIb Laser Product
THIS PRODUCT COMPLIES WITH 21CFR 1040.10
CAUTION
STATIC SENSITIVE DEVICE
OBSERVE PRECAUTIONS
Certificate No. FM 15040
Certificate No. EMS 35100
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REV 1 Feb 2003
Bookham Technology 2003 Bookham & ASOC are registered trademarks of Bookham Technology plc
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USA
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Fax: +1 678 482 4022
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Bookham Technology plc
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TQ4 7BE
UK
Tel: +44 (0) 1803 66 2875
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Tel: +852 (2100) 2249
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Sales@bookham.com
Important Notice
Bookham Technology has a policy of
continuous improvement, as a result
certain parameters detailed on this flyer
may be subject to change without notice.
If you are interested in a particular product
please request the available from any
Bookham Technology sales representative.
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