Page 6 - LFWC_NovDec_2018_eMag

CONTENTS Nov/ Dec 2018 Issue 6

10 COVER STORY
Photonics for Datacenters
Integrated optics permeate datacenter networks
Photonic integrated circuits (PICs) and silicon-photonics-based optical engines will
expand datacenter network potential over the next decade.

20 Manufacturing Photonics
Capacitors
PD array
Chip FB/DFB/EML Pump lasers Challenges for photonics manufacturing in the
Thermistors
Lens
PDs
isolator
AWG
& die lasers LiNbO 3 modulator chip (1/10th to actual) (1/4 scale) (1/2 scale) VCSEL array LD driver TIA
new data center era
Chip on carrier
(CoC, TO, PCB) Laser CoC, Multi-die PIC VCSELs-Drivers/PDs-TIAs/
The high-volume and high-mix nature of manufacturing
Single-die CoC Multi-die CoC lens on baseplate (SiPh, glass, etc.) Laser or PD on TO Lens on AOC PCB
Open package
assembly for hyperscale data centers requires flexible, high
(GB, AA) Laser TOSA ROSA Receiver Modulator Complex TO AOC
MARKET WATCH Final module speed, and high precision automation to enable just-
(FA)
Modulator
BOSA
Laser Transceiver in-time supply and fast innovations of critical photonics
Receiver
TOSA, ROSA
AOC
6 Market applications review of low power components.
green laser Cobolt 04-01 series 24 功率(dB)
How to Choose a Laser
In recent years, market demand for low-power green M 2 <1.1 光谱纯度>60dB 波长(nm) 温度循环期间Cobolt Jive的 温度(°C)
561nm波长稳定性
561,210
lasers is increasing. The main green laser diode -10 How to choose a laser for Raman 70 60
Δλ min-max = 3.1 pm
products and their applications in the market are -30 spectroscopy 561,205 30℃温度变化 50
40
introduced in this article. -50 Understanding the lasers that can be used for Raman
561,200
30
20
561,195
-70 spectroscopy and why is critical to the success
基板温度
测量波长
10
0
561,190
-90 applications of Raman spectroscopy in more and
0
532
482
582
20
25
30
5
10
15
more new application areas. 时间(小时)
波长(nm)
13 APPLICATIONS 28 Ultrafast Technology
Novel Lasers From mode-locked to CPA amplification:
Blue direct-diode lasers extend industrial Physics in femtosecond fiber lasers
laser capability Based on the principle of mode-locking and CPA
A high-power and high-brightness blue direct-diode technology, this paper discusses the physical principle
behind femtosecond fiber laser, so that more people
laser system processes copper with high efficiency could understand ultrafast laser and promote the
and low excess heat, and also make it easier to weld development of ultrafast laser processing.
dissimilar metals.
32 PHOTONICS PRODUCTS
16 New Energy Applications
3 Approaches Show: Fiber Lasers Prepared Guide for selection of beam profilers
for E-Mobility In this paper, some matters needing to be considered when
New energy vehicles are transforming the transportation choosing beam profilers for different lasers are introduced.
industry, and IPG‘s fiber lasers can provide customized The selection of beam profilers and some auxiliary
solutions for manufacturers of new energy vehicles, accessories depends on the wavelength, power, spot size
while meeting the requirements of the fourth industrial and whether the incident light is CW or pulsed light.
revolution, Industry 4.0.
36 BUSINESS FORUM
Should I work for this photonics company?
TECHNOLOGIES CENTER Think about how you can do what you enjoy doing and
also have opportunities open up in front of you. Each
19 Facial Recognition job change is a fork in the road of your career path.
3D TOF camera technology improves facial
recognition accuracy and security 5 EDITOR’S NOTES
Using its epc660 TOF imaging chip and careful calibration, 8 LEADING EDGE SNAPSHOTS
Espros Photonics is building 3D facial scanning systems 37 PRODUCTS HIGHLIGHTS
that offer high spatial accuracy and depth security.
40 AD INDEX
About Laser Focus World China
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