Page 6 - LFWC_MayJun_2019_eMag

CONTENTS May/ Jun 2019 Issue 3

24
COVER STORY
Silicon Photonics
Automated wafer-level probing meets silicon photonics
Fully integrated and automated wafer-probing systems enable silicon photonic chip designers
to characterize and qualify their designs faster than ever.
a) φ (rad)
0.8
0.6
0.4
0.2
0.0 TECHNOLOGIES CENTER
-0.2
-0.4
-0.6
-0.8
4
6
-10 -8 -6 -4 -2 0 2 28 8 10 Laser Microfabrication
y (µm)
b) Transmittance 面内转向电极 Laser-written flexible waveguide in polymer
面外转向电极
MARKET WATCH 电极细节 λ = 650–700 nm could spawn new medical devices
1.0
T = 99.3%
0.9
0.7 0.8 λ = 600–800 nm θ面内
T = 85.1%
0.6
液晶
10 Ultrafast lasers are moving towards 0.5 0.4 0.3 盖玻片 Researchers have for the first time fabricated flexible
芯
0.2 waveguides about 1.3 µm wide in polydimethylsiloxane,
亚包层
macro-processing field 0.1 0.0 400 500 600 700 800 衬底 1000 a clear silicone used for biomedical applications.
电极
900
θ面外
Researchers have obtained 3.5 kW ultrafast laser 侧视图 Wavelength (nm) 耦合出/面外转向电极
output from fiber lasers, and ultrafast lasers are 耦合入区 30 Beams Control
面内转向区
moving towards the field of macro-processing. Nonmechanical on-chip waveguide device
steers mid-infrared beams
11 Global laser markets: Insights and forecasts
Macro-material processing market will still grow moderately Researchers have devised a voltage-controlled, nonmechanical
beam steering device that routes mid-wavelength infrared
in 2019, while the micro-material processing market will (MWIR or mid-IR) beams in two dimensions.
show negative growth.
31 Fiber Lasers
12 Trade, tariffs and tumult: New Ultranarrow Brillouin fiber laser has built-in
challenges for lasers in China temperature stability
Although facing new challenges in 2019, however, all Researchers from MIT Lincoln Laboratory have
these won’t stop the intelligent manufacturing trend in achieved ultranarrow linewidth lasing in a portable
China, and China will soon usher in rapid development. package that provides built-in temperature stability.
32 Special Optical Fibers
APPLICATIONS 谐振腔结构 有源光纤 Passive fiber for fiber lasers
To master the core design, fabrication and testing
14 Ultrafast Laser Micromachining 合束器 technology of various optical fibers is the necessary
激光输出跳线
合束器
剥模器
High quality flex printed circuit (FPC) guarantee for achieving high reliability of passive
processing with UV picosecond lasers 高反光栅 低反光栅 special optical fibers.
IceFyre laser’s TimeShift ps feature allows for tailoring 34 Ultrafast-laser Drilling
the quality and throughput for various laser machining 泵浦光
泵浦光
processes. Ultrafast-laser technology drills 12,000
Temperature
647 holes per second with 1 µm diameter
600
16 Glass Cutting Researchers have already managed to produce
500
Glass cutting benefits from advances in 298 300
400
over 12,000 holes per second, each with an outlet
laser technology diameter of under 1µm.
SmartCleave filamentation cutting and femtosecond
cutting of layered substrates are bring glass cutting INTERVIEWS
to a new technological level. 36 Building China's core laser chips based on its
20 Blue lasers own characteristics
Industrial blue laser brings revolutionary Interview Wang Jun, CTO and Executive Vice-President
changes to reflective metal processing from Everbright Photonics
High power industrial blue lasers have brought 38 Trumpf introduces KW CW green laser for
subversive progress to the processing of reflective metal electric vehicle market
materials such as copper.
6 EDITOR’S NOTES
40 BUSINESS FORUM 8 LEADING EDGE SNAPSHOTS
A salary survey glance of global optics and 42 PRODUCTS HIGHLIGHTS
photonics industry 44 AD INDEX
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