Data Sheet
1
The Bookham BAC120C-9xx-01/02 50% fill factor laser diode
bar on microchannel cooler series has been designed to
provide the increased brightness and reliability required for
pumping next generation solid-state disk and fibre lasers, and
for direct applications. The proprietary E2 front mirror
passivation process, developed at our Zurich site, prevents
Catastrophic Optical Damage (COD) to the laser diode facet
even at extremely high output powers. The laser diode bars are
mounted on an expansion matched CuW submount onto a
water-cooled microchannel package providing very high
reliability in CW and pulsed (1-Hz type) applications.
Features:
• Mounted 10mm x 2.4mm laser diode bar
• Active microchannel cooler (water-cooled)
•120W operating power
•Highly reliable single quantum well MBE structure
•Telecom grade AuSn mounting technology
•Assembly option with Cu base and cover
•Standard wavelengths at 915nm, 940nm, and 980nm
(others available on request)
• RoHS compliant
Applications:
•Solid-state disk and fiber laser pumping
• Direct applications such as material processing
•Printing
• Medical
120W 9xxnm High Power Laser Diode Bar on
Microchannel Cooler
BAC120C-9xx-01/02
Data Sheet
2
Characteristics
Parameter Symbol Typical Unit
CW Output Power Pop 120 W
Center Wavelength [1]
BAC120C-915-01/02 λc915 915 ± 10
BAC120C-940-01/02 λc940 940 ± 10 nm
BAC120C-980-01/02 λc980 980 ± 10
Spectral Width (FWHM) ∆λ 3nm
Wavelength Shift with Temperature dλc/dTop 0.3 nm/°C
Beam Divergence
Parallel to Junction (90% of Power) θ// 7 deg
Perpendicular to Junction (FWHM) θ⊥26
Polarization – TE –
Threshold Current Ith 14 A
Slope Efficiency ηD=Pop/(Iop-Ith) 1 W/A
Conversion Efficiency H=Pop/(Vop×Iop)60 %
Series Resistance Rs5mΩ
Operating Current Iop 140 A
Operating Voltage Vop 1.5 V
Operating Temperature Top 25 ± 5 °C
Microcooler Flow Qw22 ± 4 l/hrs
Microchannel Cooler Differential Pressure Pw0.7 bar
Bar Dimensions
Parameter Symbol Typical Unit
Bar Width b 10 mm
Resonator Length l 2.4 mm
Number of Emitters n 48 –
Emitter Spacing p 200 µm
Emitter Width w 100 µm
Fill Factor f 50 %
[1] Reduced wavelength window / extended range available on request (900-1060nm).
Data Sheet
3
Microchannel Cooler
Dimensions (mm)
Bottom
Ø3.2
2.17
Beam
Height
B
1.9
Ø4.8
Ø4.8
11.175
11.7 12.55
28.5
17.65
Coolant
Outlet
Coolant
Inlet
C
Side
Top
BAC120C-9xx-01
Microchannel Cooler with Base
and Cover Dimensions (mm)
Beam
Height
7.55
Coolant
Connection
Coolant
Connection Ø4.5 Ø7
38.9
Neg –
Pos +
17.65
11.175
33.9
Bookham
WWYY-XXX-T
M3
M3
M3
30.85
24.25
12.55
15.67
12.67
7
4.2
4.85
0
BAC120C-9xx-02
Data Sheet
4BH12915 Rev 3.1 June 2007
©Bookham 2005. Bookham is a registered trademark of Bookham Inc.
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:
BAC120C-915-01 120W 915nm Laser Diode Bar on Microchannel Cooler
BAC120C-940-01 120W 940nm Laser Diode Bar on Microchannel Cooler
BAC120C-980-01 120W 980nm Laser Diode Bar on Microchannel Cooler
BAC120C-915-02 120W 915nm Laser Diode Bar on Microchannel Cooler with Base and Cover
BAC120C-940-02 120W 940nm Laser Diode Bar on Microchannel Cooler with Base and Cover
BAC120C-980-02 120W 980nm Laser Diode Bar on Microchannel Cooler with Base and Cover
DANGER
MAX POWER 120W
WAVELENGTH 915 – 980nm
CLASS IV LASER PRODUCT
INVISIBLE LASER RADIATION -
AVOID EYE OR SKIN EXPOSURE TO
DIRECT OR SCATTERED RADIATION
THIS PRODUCT COMPLIES
WITH 21CFR 1040.10
Bookham
(Switzerland) AG
Binzstrasse 17
8045 Zurich
Switzerland
•Tel: +41 44 455 8787
•Fax:+41 44 455 8586
www.bookham.com
highpower@bookham.com
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.
Contact Information
EMEA Sales Contact
Gunnar Stolze
•Tel: +41 79 635 3777
North America
Sales Contact
Michael Cutler
•Tel: +1 678 763 0777
ASIA Sales Contact
Patrick Lee
•Tel: +852 9197 7014
Japan Sales Contact
Japan Laser Corporation
•Tel: +813 5285 0861
REFERENCE IEC 60825-Edition 1.2
INVISIBLE LASER
RADIATION AVOID EYE OR
SKIN EXPOSURE TO DIRECT
OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT
FM 68159
ISO 9001:2000
Certified
