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CONTENTS Jan/ Feb 2018 Issue 1

6 COVER STORY
Annual Laser Market Review & Forecast
Lasers enabling lasers
Consumer electronics—notably smartphones and autonomous vehicle lidar—are driving
growth to new heights for laser manufacturers and laser materials processing equipment
providers and, in turn, enabling markets that need yet more lasers.

27 Laser Cleaning
Efficient and refined laser cleaning
激光束
材料等离子体 technologies
表面层
热影响区 Laser cleaning technologies have advantages such as
厚度 吸收
18 APPLICATIONS 基底材料 environmental friendly, non-contact, non-destructive
反射 and have been widely used in the cleaning of PCB,
Laser Welding
Nozzle artifacts and precision devices. Automated cleaning
High-power fiber lasers for multi-layer tab and equipment equipped with process monitoring will
Light collection
objective find wide applications in future.
pole welding
Laser intercept
Dichroics
Filters The welding system with the IPG YLS-4000 fiber laser
585/42 nm 530/30 nm Side scatter enables smooth welds and is fully capable of welding
PMTs 29 3D Laser Printing
multi-layer copper-nickel-coated tabs and multi-layer Selecting and using materials for additive
aluminum tabs. manufacturing processes
This article introduces several additive manufacturing
methods that use laser technology, as well as
20
消融率高，质量好
消融率低，质量好 消融率低，融化明显 Ultra-fast Processing common additive manufacturing materials and their
Using picosecond laser pulse train to improve
N=1,400 kHz N=1,1.6 MHz 10个子脉冲 features.
silicon wafer material removal rate and
processing quality 31 LASER SAFETY
The experiment clearly shows that IceFyre laser can
significantly improve the removal rate of silicon materials, Laser demonstration safety issues at the
while processing quality has also been greatly improved. show
At the laser show, there are usually a lot of
demonstrations about laser products and
technologies. How to ensure that all demonstrations
22 Laser Welding
Pulsed nanosecond fiber lasers can join are fully in line with the design requirements of laser
safety and eliminate security risks?
dissimilar materials
SPI Lasers’ nanosecond welding process has provided a
differentiated mechanism that has to date proven itself to Augmented/virtual reality revenue BUSINESS FORUM
32
share
be extremely capable in joining a wide variety of dissimilar 2020 forecast
metals. Augmented reality $90 billion Diving into emerging AR/VR markets --
AR adspend
AR consumer
AR theme park AR games
Enterprise AR opportunities for optics
AR video
AR Does augmented reality (AR) or virtual reality (VR)
AR voice hardware
TECHNOLOGIES CENTER AR data aCommerce offer some optics and photonics companies a
Virtual reality $30 billion stronghold?
VR theme park
25 High-power Laser Diodes (ex entertainment) hardware
VR
VR apps
Pump laser diodes deliver high power for 3 EDITOR’S NOTES
VR
VR video
games
leading-edge applications Source: Digi-Capital 4 LEADING EDGE SNAPSHOTS
Laser diodes are efficient, narrowband, bright, and have a 34 PRODUCTS HIGHLIGHTS
long life, making them the ideal laser-pump source, and
can be made to produce extremely high optical powers. 36 AD INDEX
About Laser Focus World China
Published since 2005, Laser Focus World China, the Chinese editionof the world famous Laser Focus World magazine, is the professional
magazine for engineers, researchers, scientists, and technical professionalsin China. It provides comprehensive global coverage of optoelectronictechnologies, industrial and R&D applications, and market information. The
editorial content licensed exclusively from Laser Focus World magazine is supplement by content generated by our own editors in China.
Laser Focus World China is published every other month in simplified Chinese and distributed to over 9,500 qualified optoelectronics professionals in China. Through our digital magazine and website we provide
coverage to an even larger audience base. Please visit our relevant website, www.laserfocusworld.com.cn.
Laser Focus World China, ISSN 1817-6917 is published bi-monthly by ACT International, Unit B, 13/F, Por Yen Building, No. 478 Castle Peak Road, Cheung Sha Wan, Kowloon, Hong Kong, under the license of PennWell
Corporation, 1421 S. Sheridan Road, Tulsa, OK 74112. Copyright 2010. All rights reserved. This publication contains article reprinted from Laser Focus World magazine. Laser Focus World is exclusively owned and
published by PennWell Corporation. PennWell Corporation is not responsible in any way for the editorial policy and expressly disclaims responsibility for, and makes no warranties, express or implied, with respect to the
content of this publication or the performance or reliability of products described herein that are products described by independent vendors.
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