BOOKHAM LC151B

Data Sheet
4 - 155 Mb/s Single-Mode OSC Laser, 1510 nm
LC151B
Specifically designed for use as a low speed out of band
optical service channel for optical amplifiers. The laser
is available in a low-inductance 14-pin butterfly package
with single-mode connectorized fiber-optic pigtail with a rated
peak output power of 2 mW. At 1510 nm, the LC151B-20
does not interfere with WDM traffic and operates outside
the normal EDFA gain region. The high reliability buried
hetero-structure DFB laser chip ensures the reliability of
the LC151B-20 over the entire range of recommended
operating conditions.
Features:
• Wavelength 1510 nm
• Designed to operate at 4 Mb/s - 155 Mb/s
• Low threshold, high reliability BHet laser chip
• Hermetically sealed 14 pin high speed
butterfly package
• High output power 2 mW minimum CW
• Internal InGaAs monitor photodiode
• Available with several optical connector options
• RoHS compliant
Applications:
• Optical Service Channel (OSC) applications in DWDM
transmission systems using optical amplifiers.
1
Data Sheet
Absolute Maximum Ratings
Parameter
Conditions
Min
Max
Unit
Operating temperature
-40
+70
°C
Storage temperature
-40
+75
°C
100
mA
2
V
-10
V
Laser forward current above Ith
Laser reverse voltage
Monitor diode bias
Fibre bend radius
30
mm
Tcase = 25°C unless otherwise stated.
Parameters
Parameter
Condition
Min
Max
Unit
25
35
°C
SOL
5
30
mA
50% duty
1.0
Submount temperature
Threshold current (Ith)
Rated mean output power
Forward voltage
2 mW peak
Modulation current
2 mW peak
Mean wavelength
Monitor current
Typ
mW
2
V
22
67
mA
10 Mb/s
1503
1518
nm
1 mW output
65
695
µA
50
nA
800
mA
2
V
Monitor dark current
5
Heatpump current
70°C case/25°C submount
Heatpump voltage
70°C case/25°C submount
Bandwidth
1.3
200
Sidemode suppression ratio
Spectral width
Rated ouput power
-35
dB
@ -20 dB
0.4
nm
Kink
To 120% peak
-20
20
%
Slope SAT
To 120% peak
-35
35
%
Conditions: Monitor bias -5V.
Connections
2
MHz
Pin #
Function
Pin #
Function
1
Thermistor
14
No connection
2
Thermistor
13
Ground
3
LD cathode
12
LD anode
4
Monitor anode
11
Ground
5
Monitor cathode
10
No connection
6
TEC (+)
9
Ground
7
TEC (-)
8
Ground
Data Sheet
Package Outline Drawing and Dimensions
Tolerances ± 0.25 mm
Finish: Gold plate
Figure 3: Dimensions diagram.
Instructions for Use
Pin 1 and Pin 2 Thermistor
The thermistor is used in a control loop in conjunction
with the thermo-electric cooler to maintain the laser
submount temperature at the required value. Operating
current should be less than 100 µA to prevent
selfheating errors.
Pin 3 Laser modulation (-) and bias
The data input (modulation) and bias are both applied
via this pin which has a nominal 25 Ohm
load impedance.
Pin 4 Monitor anode, Pin 5 Monitor cathode
The back facet monitor diode provides a mean power
reference for the laser and is normally operated with a
5 V reverse bias.
Pin 6 TEC (+), Pin 7 TEC (-)
Applying a positive voltage on pin 6 with respect to pin 7
3
will cause the internal submount to be cooled relative to
the case temperature.
Reversing the polarity will raise the submount
temperature relative to the case. Care should be taken to
avoid overheating the submount when driving the TEC in
this manner.
The TEC supply should be capable of delivering up to
1.2 A at 2.5 V.
Pin 8, 9, 11, 13 Case ground.
These pins must be grounded in all applications.
Pin 10, 14 N/C
These pins are not connected. They should be grounded
if possible.
Pin 12 Laser (+)
This pin provides the return path for the laser modulation
and bias circuits.
Data Sheet
RoHS Compliance
Bookham is fully committed to environment
protection and sustainable development and has
set in place a comprehensive program for
removing polluting and hazardous substances from
all of its products. The relevant evidence of RoHS
compliance is held as part of our controlled
documentation for each of our compliant products.
RoHS compliance parts are available to order,
please refer to the ordering information section for
further details.
Ordering Information:
Please quote the Product Code from below when ordering as this is the identification that appears on the part
when shipped.
Product Code
Length
Fibertail
Diameter
Fibre types
Product Name
LC151B-20J28
116 cm ±30 mm
0.9 mm
standard
4/155 Mb/s Single-Mode
OSC Laser, 1510 nm
with SC/PC connector
LC151B-20J34
116 cm ±30 mm
0.9 mm
standard
4/155 Mb/s Single-Mode
OSC Laser, 1510 nm
with FC/PC connector
LC151B-20J57
116 cm ±30 mm
0.9 mm
standard
4/155 Mb/s Single-Mode
OSC Laser, 1510 nm
with LC/PC connector
LC151B-20J59
116 cm ±30 mm
0.9 mm
standard
4/155 Mb/s Single-Mode
OSC Laser, 1510 nm
with MU/PC connector
Contact Information
North America
Bookham Worldwide
Headquarters
Europe
Paignton Office
Asia
Shenzhen Office
2584 Junction Ave.
San Jose
CA 95134
USA
Brixham Road
Paignton
Devon
TQ4 7BE
United Kingdom
2 Phoenix Road
Futian Free Trade Zone
Shenzhen 518038
China
• Tel: +1 408 919 1500
• Tel: +44 (0) 1803 66 2000
• Fax: +1 408 919 6083
• Fax: +44 (0) 1803 66 2801
• Fax: +86 755 33305805
+86 755 33305807
• Tel: +86 755 33305888
Important Notice
Performance figures, data and any illustrative material
provided in this data sheet are typical and must be
specifically confirmed in writing by Bookham before
they become applicable to any particular order or
contract. In accordance with the Bookham policy of
continuous improvement specifications may change
without notice. The publication of information in this
data sheet does not imply freedom from patent or other
protective rights of Bookham or others. Further details
are available from any Bookham sales representative.
www.bookham.com
sales@bookham.com
DANGER
INVISIBLE LASER RADIATION
DO NOT VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS
CLASS 1M LASER
REFERENCE IEC 60825-1: Edition 1.2
4
INVISIBLE LASER RADIATION
AVOID DIRECT
EXPOSURE TO BEAM
OUTPUT POWER 21mW
WAVELENGTH >1500nm
CLASS IIIb LASER PRODUCT
THIS PRODUCT COMPLIES
WITH 21 CFR 1040.10
ISO14001:1996
EMS 504193
TL9000 Rev 3.0 (ISO9001:2000)
FM15040
Caution - use of controls or adjustments or
performance of procedures other than
those specified herein may result in
hazardous radiation exposure.
BH13090 Rev 1.0 January 2007
©Bookham 2006. Bookham is a registered trademark of Bookham Inc.