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Data Sheet
4W 940nm Uncooled Multimode Laser Diode Module MU4-940-04
The Bookham MU4-940 multimode laser diode module has been designed to provide the high power and reliability required for pumping next generation high power amplifiers for CaTV and FTTx. The pump module includes a multimode laser diode chip with E2 front mirror passivation that prevents Catastrophic Optical Damage (COD) to the laser diode facet even at very high power levels. The coupling process allows for high output powers that are very stable with both time and temperature. Features: * High output power 4W * 0.22NA 105m core multimode fiber pigtail * Hermetically sealed package * Floating anode/cathode * High reliability * Excellent solderability * Standard wavelength at 940nm * Low power dissipation * RoHS compliant Applications: * High power EDFA for CaTV and FTTx * Er/Yb co-doped double clad pumping
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Operating Characteristics:
Conditions unless otherwise stated: * Parameters at 25C heat sink temperature and use of a thermal interface material rated for a thermal impedance of less than 1.3cm2 .K/W (0.2in2 .K/W)
Parameter Fiber Coupled CW Output Power Operating Current Forward Voltage Threshold Current Slope Efficiency Center Wavelength Spectral Width (95% of Power)
Symbol POP IOP VOP Ith
Min 4.0
Typ
Max
Unit W
5.5 2.0 0.5 0.8 930 0.95 940 6 950 0.6
A V A W/A nm nm
P= POP /( IOP - Ith ) c940
Absolute Maximum Ratings:
Parameter ESD Storage Temperature Lead Soldering Temperature Lead Soldering Time Operating Case Temperature Relative Humidity (Operating) 0 5 -40 Min Max 500 85 250 10 45 85 Unit V C C sec C %
Fiber Specification:
Parameter Buffer Diameter Cladding Diameter Core Diameter Numeric Aperture Fiber Length
Notes:
[1] 0.15NA available on request. Fiber Type: Multimode Step Index. [1]
Min 230 123 102
Typ 250 125 104 0.22
Max 270 128 106
Unit m m m
1.0
1.5
2.5
m
2
Package Dimensions (mm):
Connection:
Pin # 1 2
Function Laser Diode Anode (+) Laser Diode Cathode (-)
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: MU4-940-04 4W 940nm Multimode Laser Diode with 0.22NA fiber
Contact Information
North America Bookham Worldwide Headquarters
2584 Junction Ave. San Jose CA 95134 USA * Tel: +1 408 919 1500 * Fax: +1 408 919 6083
Europe Paignton Office
Brixham Road Paignton Devon TQ4 7BE United Kingdom * Tel: +44 (0) 1803 66 2000 * Fax: +44 (0) 1803 66 2801
Asia Shenzhen Office
2 Phoenix Road Futian Free Trade Zone Shenzhen 518038 China * Tel: +86 755 33305888 * Fax: +86 755 33305805 +86 755 33305807
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
INVISIBLE LASER RADIATION AVOID EYE OR SKIN EXPOSURE TO DIRECT OR SCATTERED RADIATION CLASS 4 LASER PRODUCT Maximum Power 22W Wavelength >900nm
REFERENCE IEC 60825-Edition 1.2
Caution - use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
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LASER RADIATION - AVOID EYE OR SKIN EXPOSURE TO DIRECT OR SCATTERED RADIATION
MAX POWER 22W WAVELENGTH > 900nm CLASS IV LASER PRODUCT
THIS PRODUCT COMPLIES WITH 21CFR 1040.10
ISO14001:1996 EMS 504193 TL9000 Rev 3.0 (ISO9001:2000) FM15040
BH12829 Rev 3.0 January 2007. (c)Bookham 2006. Bookham is a registered trademark of Bookham Inc.

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