Published: October 12, 2016
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This is the
ElectroniCast worldwide market forecast of the consumption of component-level
fiber optic attenuators in communication applications. The optical attenuators, which are covered
in this study, are components used to control (reduce) the power level of an optical
signal used in optical fiber communication networks. Fiber optic attenuators
are an important part of the optical communication link by allowing the
adjustment of signal transmission into the dynamic range of the receiver. Either a fixed or variable attenuator is
generally positioned before a receiver to adjust optical power that otherwise
might fluctuate above an extreme range of the receiver’s design, causing it to
generate errors.
Fixed-type (not
adjustable) fiber optic attenuators refer to the attenuator that can reduce the
power of fiber light at a fixed value loss, for example, 5dB. While variable
fiber optic attenuators refer to the attenuator that can generate an adjustable
Loss to the fiber optic link. Fiber
optic attenuators can be designed to use with various kinds of fiber optic
connectors. The attenuators can be
female-to-female, which are referred to as bulkhead- types; or male-to-female,
which are referred to as plug-types.
In-Line fiber optic attenuators are designed with a piece of fiber optic
cable at any length and/or connectors.
Variable optical
attenuators (VOAs) are either manually adjustable or electronically
adjustable. VOAs have been widely used
in fiber-optic communication, optical signal processing, fiber optic sensing as
well as testing instruments.
This report
quantifies stand-alone component-level fiber optic attenuators, as well as
component-level fiber optic attenuators that are inside value-added or
integrated modules. However, only the
fiber optic attenuators are counted, not the entire value-added module.
When counting
(quantifying) variable optical attenuator array modules and integrated modules,
which may have more than one component-level attenuator, each component-level
attenuator is counted separately. For
example: with an integrated value-added module, we count only the complete
(component-level) fiber optic attenuator as well as cost-adjusting for the
optics, optical fiber alignments, and optical fiber and associated packaging,
and other required materials.
Typically, fiber
optic attenuators have used filter technology to decrease optical power. Light is usually transmitted from one fiber,
through a spatial or temporal filter, and then focused into a second fiber for transmission
through the balance of the optical links. Some of the other methods include
angular (APC), lateral or axial displacement of two fiber ends, grayscale
(neutral density) filters, fiber macro-bending, liquid crystals, PLC, MEMS,
magneto-optic, acousto-optic or electro-optic.
Fixed attenuators
(not adjustable) afford the network designer an inexpensive lumped element to
decrease optical power. Packaged in
either panel mount or cable assemblies, fixed attenuator types include
bulkhead, connector build out, jumper/pigtailed and in-line. Attenuation is often segmented into whole
decibel increments such as 1dB, 3dB, 5dB, 10dB, 13dB, 15dB and 20dB. Fiber
attenuators are often associated with a connector-type, such as: LC, SC, ST,
FC, MU, SC/APC, FC/APC, and other, as well as optical fiber-type (single mode
and multimode).
Variable
(adjustable) attenuators are ideal for simulating cable loss for research and
development (laboratory) testing of optical communication link power limits or
reducing power in the links where receivers are in the process of being
overloaded. Fixed in-line (cable
assembly/jumper) attenuators can distinguish the color band coding process to
simplify the specification identification of the optical communication link
components during field installation, stocking, or maintenance operations. VOAs (variable optical attenuators) enable
adjustment capabilities, so the injected loss may be simply reduced as specific
components degrade and increase their own attenuation over a few years.
The variable optical
attenuators (VOA), also known as variable fiber-optic attenuators (VFOA) is a
basic building block for several optical systems such as wavelength division
multiplexed (WDM) transmission systems, optical beam formers, fiber-optic
adaptive controls, and other applications.
The market data
are segmented into the following geographic regions, plus a Global summary:
·
America
(North, Central and South America)
·
EMEA
(Europe, Middle Eastern countries, plus Africa)
·
APAC (Asia
Pacific)
In this report,
the fiber optic attenuator market is also presented by the following product
categories:
·
Fixed
o
Bulkhead/Plug/Panel
Mount
o
In-Line
Jumper
·
Variable
(VOA)
o
Manually VOA
o
Electronically
VOA (EVOA)
- MEMS-Based
EVOA
- Other EVOA
The worldwide market forecast of the
consumption of fiber optic attenuators is segmented into the following communication
applications:
·
Telecommunications
·
Private Data
LAN/WAN
·
Cable TV
·
Military/Aerospace
·
Specialty
Below, are three
levels (or “food chain”) pertaining to the fiber optic attenuator marketplace. For the purposes of this ElectroniCast
study, we quantify and provide a market forecast for “Level 2”
Level 1 - The chip, die
Level 2 – The Component-Level fiber
optic attenuator
Level 3 – Module (array attenuators, integrated
modules, other)
INFORMATION BASE
This study is based on analysis of
information obtained continually over the past two decades, but updated through
early-October 2016. During this period,
ElectroniCast analysts performed interviews with authoritative and representative
individuals in the fiber optics, telecommunications, datacom, cable TV and
other communication industries, from the standpoint of both suppliers and users
of fiber optic transmission links. The
interviews were conducted principally with:
• Engineers, marketing personnel and management at
manufacturers of fiber optic attenuators, circulators, collimators, specialty
fiber, connectors, isolators, couplers, DWDM filter modules, dispersion
compensators, photonic switches, modulators, transmitters/receivers, OADMs and other related optical communication components.
• Engineers, marketing, purchasing personnel and market
planners at major users of passive and active optical components, such as telecommunication
transmission, switching, distribution and apparatus equipment, telephone
companies, data communications equipment companies, cable TV system suppliers,
and a number of other end users of fiber optic communication components and technology.
The interviews covered issues of
technology, pricing, contract size, reliability, documentation,
installation/maintenance crafts, standards, supplier competition and other
topics.
A full review of published information was
also performed to supplement information obtained through interviews. The following sources were reviewed:
· Professional technical journals and
papers; Trade press articles
· Technical conference proceedings
· Additional information based on previous
ElectroniCast market studies, including the Fiber Optic Forecast Service Data
Base, the Fiber Optic Cable Forecast, the Optical Amplifier and Component
Global Forecast, the Fiber Optic Installation Apparatus Forecast, the Fiber
Optic Circulator Forecast, Fiber Optic Coupler, Isolator, Filter, DWDM, Switch,
Optical Add/Drop Multiplexers, Transmitters/Receivers, SONET/SDH, and other related component Market Forecasts
· Personal knowledge of the research team
In analyzing and forecasting the
complexities of the Global market for fiber optic communication components, it is essential that the market
research team have a good and a deep understanding of the technology and of the
industry. ElectroniCast members who
participated in this report were qualified.
Bottom-up
Methodology
ElectroniCast forecasts are developed initially at the lowest detail
level and then summed to successively higher levels. The background market
research focuses on the projected amount of each type of product used in each
application in the base year, and the prices paid at the first transaction from the manufacturer. This
forms the base year data. ElectroniCast analysts then
forecast the growth rates in component quantity use in device type, along with
price trends, based on competitive, economic and technology forecast trends,
and apply these to derive long term forecasts at the lowest application (use)
levels. The usage growth rate forecasts depend heavily on analysis of overall
end user trends toward digital broadband communication equipment usage and
economic payback.
Cross-Correlation
Increases Accuracy The quantities of fiber optic attenuators, DWDM,
optical fiber/cable,
connectors, transceivers, transport terminals, optical add/drop MUX, couplers/splitters, isolators, photonic
switches and other products used in a particular application are interrelated.
Since ElectroniCast conducts annual analysis and forecast updates in each fiber
optic related product field, accurate current quantity estimates in each
application are part of this corporate database. These quantities are
cross-correlated as a “sanity check.”
ElectroniCast,
each year since 1985, has conducted extensive research and updated their
forecasts of each fiber optic component category. As technology and
applications have advanced, the number of component subsets covered by the
forecasts has expanded impressively.
About
ElectroniCast
ElectroniCast,
founded in 1981, specializes in forecasting technology and global market trends
in fiber optics communication components and devices, as well providing market
data on light emitting diodes used in lighting.
As an independent
consultancy we offer multi-client and custom market research studies to the
world's leading companies based on comprehensive, in- depth analysis of
quantitative and qualitative factors. This includes technology forecasting,
markets and applications forecasting, strategic planning, competitive analysis,
customer-satisfaction surveys and marketing/sales consultation. ElectroniCast,
founded as a technology-based independent consulting firm, meets the
information needs of the investment community, industry planners and related
suppliers.
Fiber
Optic Component Attenuators
Global
Market Forecast & Analysis
Table of
Contents
1. Executive
Summary
1.1 Overview
1.2 Fiber
Optic Networks – Overview
2. Fiber
Optic Attenuator Market Forecast
2.1 Overview
2.2 Global
Market Forecast
2.3 American
Region Market Forecast
2.4 EMEA
Region Market Forecast
2.5 APAC
Region Market Forecast
3. Fiber
Optic Attenuator Competitors and Related Entities
3A Fiber
Optic Communications, Inc.
Accelink
Technologies Co., Ltd
AC
Photonics, Inc.
Adamant
Co., Ltd.
Advanced
Connectek (ACON)
AFW
Technologies Pty. Ltd.
Agilent
Agiltron
Alcoa Fujikura Ltd. (AFL), Noyes Fiber
Systems
Alliance
Fiber Optic Products Inc. (AFOP) - Corning
Amphenol
Fiber Optic Products
Anritsu
Corporation
AOC
Technologies Inc.
Ascentta
Inc.
Bank
Photonics,Inc.
Boston
Applied Technologies Incorporated (BATi)
Brimrose
Corporation of America
Cisco
Systems
CoAdna
COF
Communications Co., Ltd.
Corning
Incorporated
Diamond
SA
DiCon Fiberoptics Inc.
Digital
Lightwave Incorporated – VeEX
EigenLight
Corporation
Emerson
Electric
Enablence
Technologies
E-Photics
(Shenzhen) Communications, Inc.
EUROMICRON GmbH
EXFO
FDK
Corporation
Fiber
Instrument Sales, Inc. (FIS)
Fiber
Optic & Telecommunication Inc. (FO&T)
Fiber
Optic Devices Ltd. (FOD)
Fiber
Systems Inc.
Fiberall
Fiberdyne
Labs Inc.
Fiberer
Global Tech Ltd.
Fiberlogix
International Limited
Fibersense
& Signals, Inc.
Finisar
Corporation
Flyin
Optronics Co., Ltd.
FOCI
FOLAN
Fostec
Company, Limited
Furukawa
Electric Co., Ltd. / OFS
GAO Fiber
Optics
Gould
Fiber Optics
Greenlee
Textron Inc.
Hakuto
Co., Ltd. (Photom)
Hitachi
Metals
HUBER+SUHNER
IDEAL
Industries, Incorporated
JDSU
(Lumentum Operations LLC and Viavi )
KAIAM
Corporation
Kingfisher
International Pty Ltd, Australia
Korea
Optron Corporation (KOC)
Lead Fiber
Optics (LFO)
LIGHTech
Fiberoptics Inc.
Lightwaves2020,
Inc.
LUXCOM
Mellanox
Technologies (Kotura)
MEMSCAP
Microwave
Photonic Systems, Inc. (MPS)
Molex
Incorporated
MRV
Communications, Inc.
NEL (NTT
Electronics Co. Ltd.)
NeoPhotonics
Corporation
Neptec
Optical Solutions, Inc. (Neptec
OS, Inc.)
Newport
Corporation
Oclaro
Incorporated
O/E Land Inc.
O-Net
Communications Limited
Oplink
Communications, Inc. (Emit Technology)
Opneti
Communications Co.
Opterna
OptiWorks,
Inc.
Optokon
a.s.
Opto-Link
Corporation Limited
Optosun
Technology
Optowaves
Inc.
OSTenp
Corporation Limited
OZ Optics
Ltd.
Photop Technologies,
Inc. (II-VI Incorporated)
Precision
Rated Optics (PRO)
Princetel,
Inc.
Plank
Optoelectronics, Inc.
Radiant
Communications Corporation
Santec
Corporation
Seikoh
Giken Company Limited
Senko
Advanced Components
Sercalo
Microtechnology Ltd.
Sopto
Technologies Co., Ltd
Shenzhen
Tellid Communication Tech. Co., Ltd. (Tellid)
Shinkwang
Information Communications, Limited
Spiktel
Technologies Private Limited
Sun
Telecom
SWCC Showa
Holdings Co., Ltd.
Telecom
Bridge (TB Tech)
Techwin
(China) Industry Co., Ltd
Tektronix
Terahertz
Technologies Inc. (TTI)
Thorlabs
Timbercon,
Inc.
TE
Connectivity Ltd.
Valdor
Technology International Inc.
VeEx Inc
(Sunrise Telecom Inc.)
Wilcom Inc
(Precision Rated Optics/PRO)
Xerox
Corporation
Yamasaki
Optical Technology
Yokogawa
Electric Corporation
4.
Fiber Optic Attenuator
Technology Review
4.1 Overview
4.2 Selected
Research Paper Summaries
4.3 Selected
U.S. Patent Summaries
5. Optical Communication Trends
5.1 Fiber Network Technology Trends
5.2 Components
5.2.1 Overview
5.2.2 Transmitters and Receivers
5.2.3 Optical Amplifiers
5.2.4 Dispersion Compensators
5.2.5 Fiber Cable
5.3 Devices and Parts
5.3.1 Overview
5.3.2 Emitters and Detectors
5.3.3 VCSEL & Transceiver Technology Review
5.3.4 Optoelectronic Integrated Circuits / Photonic Integrated Circuits (PIC)
5.3.5 Modulators
6. Methodology
6.1 ElectroniCast
Research and Analysis Methodology
6.2 Assumptions
of Fiber Optic Component Global Market Forecast
7. Definitions
- Acronyms, Abbreviations, and General Terms
8. Market
Forecast Data Base – Overview and Tutorial
8.1 Overview
8.2 Tutorial
ElectroniCast Market Forecast Data Base – Excel Spreadsheets:
Global
America
EMEA
APAC
Data Figures – PowerPoint Slides
List of Figures
1.1.1 Fiber Optic
Component Attenuators Global
Forecast, By Type
($Million)
1.1.2 EVOA
Global Forecast, By Type ($, Million)
1.1.3 Fiber Optic
Component Attenuators Global
Forecast, By
Application ($Million)
1.1.4 Fiber Optic
Component Attenuators Global
Forecast, By Region
($Million)
1.1.5 Optical Fiber Amplifier Performance Trends
1.1.6 Hand-Held Fiber Test Attenuator
1.1.7 Hand-Held Fiber Test Attenuator
1.2.1 FTTP
PON Architecture
1.2.2 Basic
Data Center Topology
1.2.3 Multi-Tier Data Center Architecture
1.2.4 HFC Distribution System
1.2.5 Fiber
Map (United States of America)
1.2.6 Fiber Service Pricing Comparison
1.2.7 Fiber Hut, Telecom Cabinets, and FTTH Network
Configuration
1.2.8 Fiber Optic Equipment Building – Fiber Hut
1.2.9 Types
of Metro Networks
1.2.10 Africa: Subocean Fiber
Cable
1.2.11 South-East Asia Japan Cable
System Upgrade
1.2.12 Data Centers in Japan
1.2.13 Data Centers in Asia
1.2.14 Distributed Continuous
Fiber Optic Sensor System Components
2.1.1 Assortment
of Fiber Optic Attenuators
2.1.2 Fixed-Type/Plug-Type
(Male/Female) Attenuators
2.1.3 Fixed-Type
FC/PC Bulkhead Female-to-Female Fiber Optic Attenuator
2.1.4 Fiber
Optic Patch Panel- Rack Mount- 12 ports
2.1.5 Fixed-Type
Fiber Optic Inline Attenuator with Jumper Cord/Connectors
2.1.6 Plug-Type
Variable Manual Attenuator
2.1.7 Bulkhead-Type
Variable Manual Attenuator
2.1.8 Manual
Fiber Optic Variable Attenuator Module
2.1.9 MEMS-Based
Electronically Fiber Optic Variable Attenuators
2.1.10 MEMS
Variable Optical Attenuator Schematic
2.1.11 MEMS
Variable Optical Attenuator (VOA)
2.1.12 Linear
Sliding Neutral Density (ND) Filter-Based EVOA
2.1.13 Fiber
To The Home Installation
2.1.14 Metro
Ethernet
2.1.15 Integration
vs. Discrete Solutions
2.1.16 Configuration
of the ROADM Optical Switch Module
2.1.17 Dynamic
Wavelength Processor Wavelength Selective Switch (WSS)
2.3.1 EVOA
in the America Forecast, By Type ($, Million)
2.4.1 EVOA
in the EMEA Region Forecast, By Type ($, Million)
2.5.1 EVOA
in the APAC Region Forecast, By Type ($, Million)
3.1 Small
Form Packaged Variable Optical Attenuator
3.2 Mirror
MEMS Variable Optical Attenuator
3.3 MEMS
Attenuator Array Module
3.4 Manually
Tuned Variable Optical Attenuator
3.5 MEMS
Variable Optical Attenuator Schematic
3.6 MEMS
Variable Optical Attenuator (VOA)
3.7 In-Line
Fixed Attenuator
3.8 Plug-In
Fixed Attenuators
3.9 Fixed
Attenuator with LC Connector
3.10 Variable
Optical Attenuator Module with Angled Interface
3.11 SM
Optical Fiber Attenuators— Buildout Style
3.12 Variable
Optical Attenuators (VOAs)
3.13 Fixed
In-Line Attenuators
3.14 Fixed
Plug Style Attenuators
3.15 MTP
(M) 2x Loopback In-Line
3.16 Manual VOA
3.17 EVOA
3.18 Fixed-Type
Attenuators
3.19 MEMS
Variable Optical Attenuator (VOA)
3.20 Build-Out
Optical Attenuator - LC
3.21 In-Line
Optical Attenuators, Flat Wavelength, LC UPC
3.22 In-Line
Optical Attenuator
3.23 MEMS
Biomedical Variable Optical Attenuator
3.24 Very
Small VOA
3.25 Very
Small Free-Space VOA
3.26 Optical
Fixed Attenuators
3.27 Very Small Free-Space VOA Schematic
3.28 In-Line
Attenuator
3.29 Optical
Fixed Attenuators
3.30 Optical
Fixed Attenuators
3.31 Handheld
Optical Variable Attenuator For Single-Mode Fiber
3.32 Handheld
Optical Attenuator
3.33 Multimedia
Qualification Tester
3.34 MEMS
Variable Optical Attenuators
3.35 Electrostatic
MEMS Variable Optical Attenuator
3.36 Hand-Held Motorized
Optical Level Attenuator
3.37 Fiber
Test Attenuator
3.38 Fixed
Attenuator-plug type
3.39 Attenuated
Patchcord & In-line Patchcord
3.40 Optical
Attenuator (VOA)
3.41 Fixed-Type
Fiber Optic Attenuators
3.42 8-Channel
VOA Array Module
3.43 Single-Channel
VOA
3.44 Small
Form-factor Pluggable (SFP) VOA Module
3.45 Variable
Optical Attenuators (VOA) Modules
3.46 Arrayed
Variable Optical Attenuator Module
3.47 VOA
Multiplexer / Demultiplexer Module
3.48 Illustration
of the Use of a VOA Multiplexer / Demultiplexer
3.49 Illustration
of a VOA Multiplexer / Demultiplexer Module
3.50 Optical
Function of M-Z Interferometer on Silica PLC
3.51 Illustration
of Ultra-High-Speed and High-Capacity Optical Transmissions
3.52 Variable
Optical Attenuator
3.53 Bulkhead
Fixed Optical Attenuators
3.54 Collimator
Variable Optical Attenuator
3.55 Product
Coverage
3.56 Product
Offering
3.57 Attenuator Box with Three
Attenuators
3.58 MEMS
Variable Optical Attenuator
3.59 MEMS
Variable Optical Attenuator
3.60 Hand-Held
Digital Optical Variable Attenuator
3.61 Dual-Polarizer-Based
Stepper Motor-Driven PM Fiber VOA
3.62 Fixed-Type
Optical Attenuators
3.63 Fixed-Type
Optical Attenuators
3.64 Fixed-Type
Optical Attenuators
3.65 MEMS-Based
VOA
3.66 Digital
Optical Variable Attenuator
3.68 Fixed-Type Optical Attenuator Structure
Comparison
3.69 Fiber Optic Attenuators
3.70 Optical Variable Test Attenuator
3.71 High-performance Variable Optical Attenuator
Modules
4.1.1 Fixed-Type Optical Attenuator Structure
Comparison
4.1.2 Dual-Polarizer-Based Stepper Motor-Driven PM
Fiber VOA
4.1.3 Variable Optical Attenuator Dies
4.1.4 MEMS-Based Variable Optical Attenuator Module
5.1.1 100G CFP2 Transceiver for 40km
5.3.3.1 CWDM SFP 1G 80km Transceiver
5.3.3.2 VITA 66 Fiber Optic Backplane Connector Module
5.3.3.3 VPX Board Utilizes VITA 66.4 Optical Backplane
5.3.3.4 Typical Intra-Office Interconnections
5.3.3.5 1-Port OC-768c/STM-256c Tunable WDMPOS Interface Module
5.3.4.1 Monolithic Indium Phosphide Photonic Integrated
Circuit
5.3.4.2 Photonic Integrated Circuit
5.3.5.1 400 Gbit/sec Dual Polarisation IQ Modulator
5.3.5.2 40 to 60Gbps Silicon-Based Optical Modulator
5.3.5.3 Integrated silicon optical transceiver for large-volume
data transmission
6.1.1 ElectroniCast Market Research & Forecasting
Methodology
List of
Tables
1.1.1 Global Fiber Optic Component
Attenuator Forecast, by Type (Value
Basis, $Million)
1.1.2 Global Fiber Optic EVOAs Consumption Forecast, by Type (Value
Basis, $Million
1.2.1 OM3- and OM4-Specified Distances for Ethernet
1.2.2 IEEE 802.3ba 40G/100G - Physical Layer Specifications
1.2.3 United States Broadband Plan – Goals
1.2.4 Mexico FTTX Number of Lines, By Selected Operators New
Installation (Quantity)
1.2.5 Licensed Local Fixed Carriers in Hong Kong
1.2.6 Key specifications of the PC-1 Trans-Pacific System
1.2.7 Features: Distributed Continuous Fiber Optic Sensor System
Components
2.2.1 Global Fiber Optic Component Attenuator Forecast, by Type
(Value Basis, $Million)
2.2.2 Global Fiber Optic Component Attenuator Forecast, by Type
(Quantity Basis, Units)
2.2.3 Global Fiber Optic Component Attenuator Forecast, by Type (Avg.
Selling Price, each)
2.2.4 Global Fiber Optic EVOAs Consumption Forecast, by Type (Value
Basis, $Million
2.2.5 Global Fiber Optic Component Attenuator Forecast, by Region
(Value Basis, $Million)
2.2.6 Global Fiber Optic Component Attenuator Forecast, by Region
(Quantity Basis, Units)
2.2.7 Global Fiber Optic Component Attenuator Forecast, by
Application ($Million)
2.2.8 Global Fiber Optic Component Attenuator Forecast, by
Application (Quantity, Units)
2.3.1 America – Fiber Optic Component Attenuator Forecast, by Type (Value
Basis, $Million)
2.3.2 America – Bulkhead/Plug/Panel Mounted Fixed Attenuators (Value,
Quantity, ASP)
2.3.3 America – In-Line Jumper Fiber Optic Fixed Attenuator (Value,
Quantity, ASP)
2.3.4 America – Manual VOA Component Attenuators (Value, Quantity,
ASP)
2.3.5 America – Electrically VOA Component Attenuators (Value,
Quantity, ASP)
2.4.1 EMEA – Fiber Optic Component Attenuator Forecast, by Type
(Value Basis, $Million)
2.4.2 EMEA – Bulkhead/Plug/Panel Mounted Fixed Attenuators (Value,
Quantity, ASP)
2.4.3 EMEA – In-Line Jumper Fiber Optic Fixed Attenuator (Value,
Quantity, ASP)
2.4.4 EMEA – Manual VOA Component Attenuators (Value, Quantity,
ASP)
2.4.5 EMEA – Electrically VOA Component Attenuators (Value, Quantity,
ASP)
2.5.1 APAC – Fiber Optic Component Attenuator Forecast, by Type
(Value Basis, $Million)
2.5.2 APAC – Bulkhead/Plug/Panel Mounted Fixed Attenuators (Value,
Quantity, ASP)
2.5.3 APAC – In-Line Jumper Fiber Optic Fixed Attenuator (Value, Quantity,
ASP)
2.5.4 APAC – Manual VOA Component Attenuators (Value, Quantity,
ASP)
2.5.5 APAC – Electrically VOA Component Attenuators (Value, Quantity,
ASP)
3.1 Fiber Optic Attenuator Competitors and Related Entities
3.2 Features and Applications for Fixed Type Attenuators
3.3 Specifications of Variable Optical Attenuators
8.1.1 Fiber Optic Attenuator Data Base (Excel Spreadsheets) Product
Categories
8.1.2 Fiber Optic Attenuator Data Base (Excel Spreadsheets)
Application Categories
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