Product Type: Market Research Report
Published by: ElectroniCast Consultants
Published: September 2003
Product Code: R56-147Description Dense DWDM Filter Module
Global Market Forecast Service
DWDM Defined Dense WDM, for purposes of this report, is defined as filter modules capable of meeting the proposed ITU specifications of wavelength spacings (1.6 nm, 0.8 nm, 0.4nm, 0.2 nm and the corresponding 200GHz, 100GHz, 50GHz, 25GHz, etc), and operation at the precisely specified wavelengths.
Thin Film Filters Mature In contrast to the highly concentrated vendor lineup for dense WDM Optoelectronics, there is quite broad competition between DWDM filter module suppliers. The fused biconical taper (FBT) DWDM couplers that served early, widely spaced channel DWDM cannot be advanced to filter bandwidth narrow enough to meet the needs of dense WDM (compliance with ITU standards). Thin film bandpass filter modules, however, have advanced to narrower spacing and narrower bandpass characteristics over the past several years.
Planar Wavelength Array Grating Filter Bell Labs, Lucent, developed a planar optical grating (array waveguide-AWG) for dense WDM. This was developed under the leadership of Dr. C. Dragone, at the Crawford Hill, New Jersey Bell Laboratory, and is accordingly designated the Dragone router. It is fabricated by deposition of a layer of silica (glass), followed by masking and etching to form optical waveguides on a silicon wafer substrate. The Dragone router has the potential for lower cost production, in large quantities, compared to other filter technologies. Also, unlike "cascaded" multistage filters such as thin film and Bragg fiber gratings, the per-channel insertion loss does not increase greatly as the number of channels accommodated is increased. However, in common with all planar optical waveguide devices, it has cost and performance concerns related to interfacing the singlemode fibers to the substrate waveguides.
Fiber Grating Filters Narrow bandpass optical filters also can be fabricated from optical fiber having appropriate gratings processed in the specially doped fiber core. This alternative lags behind the thin film alternative in market acceptance, but is supported by several vendors.
Gain Equalization (Flattening) Filters Ease The Pain Erbium-doped fiber amplifier (EDFA) gain spectrum equalization must be implemented to preserve the complete DWDM transmission window while going through multiple series in-line fiber amplifiers. Gain-flattening filter technologies are available on the market. The technology that will be most favored should be low-cost, flexible, adaptable to the spectral response), and not dependent on unique technology (e.g., a special fiber). Spectrally designed short-period gratings (gain-flattening fiber Bragg gratings (FBGs) meet these requirements when combined either with an isolator or a circulator.
The typical high-gain bandwidth of a standard EDFA is limited to 1530-1560 nm thus limiting the number of available channels. In this spectral window, the gain spectrum can be represented by a two-hump curve, with a high (10 dB) and narrow (10 nm) hump around 1530 nm and a wider (20 nm), shorter (3 to 5 dB) one near 1550 nm. This gain spectrum depends on several parameters, such as pump wavelength (980 or 1480 nm), fiber length, and doping stoichometry; the general shape and the solution used for gain-flattening are the same. This provides EDFAs with flat gain over a 15-20 nm bandwidth (1540-1560 nm).
An alternative approach to obtain gain flatness is to use fibers doped with completely different host material, such as flouride. This solution is complex, because such fibers are much harder to handle and to splice than silica. The gain spectra obtained with those approaches are not sufficient for DWDM systems.
For more than 16 channels, the gain spectra have to be flattened externally. The principle is to use gain-flattening filters. These filters are designed to approximate the reciprocal profile of the gain spectrum. Other approaches use acousto-optic tunable filers (AOTFs), thin-film layers, Mach-Zehnder fiber filters, and fiber Bragg gratings-in particular, Long Period Fiber Gratings (LPFGs) and others. Each solution has its advantages and disadvantages with the two most promising candidates being AOTFs and LPFGs.
LPFGs are passive components of an all-fiber construction with insignificant reflection, low excess loss, and low polarization dependence. They can be designed to match the entire 30-nm flat-gain bandwidth range. The filter required for the 30-nm flat-gain window between 1530 and 1560 nm is constructed by cascading several LPGs.
The global Dense WDM Filter Module consumption is segmented by application as presented in Table 1 and by technology as presented in Table 2. The Data Base of this report is the printout of computer spreadsheets, which show the quantitative forecast data. Forecast data is presented for:
• Each listed component category, subcategory and sub-subcategory
• Each year, 2002-2012, plus average annual growth rates for 2002-2007 and 2007-2012
• Quantity, average price and value
• Each major world region (North America, Europe, Japan/Pacific Rim and Rest of World)
METHODOLOGY
ElectroniCast Forecasts are based on an analysis and forecast of the basic driving forces: technology, economics and government action. The knowledge and experience of the analysts are critical factors in the final results of the programs.
Research techniques include:
- Interviews with fiber optic and electronic connector product providers, fiber and related product providers, fiber optic system and equipment designers, advanced photonics researchers, marketing and purchasing management: in person and by telephone.
- Industry data review: technical publications and conference proceedings; trade association data; governmental statistics; financial reports; product literature and contract awards.
- Input/output trend analysis, relating demand and technology trends to user and supplier industries.
The conclusions of this study were based mainly on primary market research consisting of interviews of executives who influence future network product trends, including:
- Carrier equipment buyers
- Procurement directors
- Network planning managers
- Network design managers
- Carrier standards/specifications committee chair
- Service product development managers
- Vendor dense WDM product marketing managers
- Vendor dense WDM product planning managers
- Standards/specifications group dense WDM product managers
- Corporate communication managers
Interviews were conducted with major telecommunication carriers and cable TV MSOs; major corporate communication managers. The significant dense WDM transmitter, receiver, laser diode and photodiode, WDM coupler and optical amplifier vendors were interviewed, plus transport terminal, DWDM link and add/drop MUX vendors.
CONTINUING COMMITMENT
ElectroniCast is committed to continuing research and forecasting in broadband networks and products, photonics and fiber optics technologies, and their markets, as well as research in related areas. Other related programs include:
- WDM, TDM & Fiber Global Market Forecast
- Dense WDM Components Global Market Forecast
- Broadband Services Forecast
- Broadband Products Forecast
- LAN Products Forecast
- Photonic Switch Technology and Market Forecast
- Massively Parallel Optical Interconnect Components Forecast
- Optical Amplifier and Components Forecast
- Broadband-to-the-Home Market Forecast
In addition, ElectroniCast performs detailed custom studies. Past topics have included: high-power laser diodes; microwave fiber optic components; video transport systems; polymeric fibers; cost estimating model software; OPGW, harsh environment and other specialized fiber optic cables; deep-infrared fibers; fiber optic instruments; cost analyses and audits of telecommunications equipment. Custom program formats include: consulting retainers; market research programs; strategic objective reviews; and competitive analyses.
DELIVERABLES
Market Forecast Report: ElectroniCast provides the full report and relative data on the product market forecast in Adobe Acrobat (PDF) software (CD).
Consulting and strategic support services: Specifically, we encourage our clients to make use of our inquiry services as a basis for ongoing dialogue with our analysts at no additional charge.
Debriefing Session: A day's debriefing by ElectroniCast staff is included in the subscription fee, except travel expenses. The debriefing will provide analysis of the data, and provide a basis for assuring that clients receive maximum benefits from the study. (Travel expenses are not included)
Fiber Optic Industry Quarterly Reviews: Every three months, clients will receive reviews of the industry's mergers/acquisitions, major network deployments, new products and forecast summaries (4 quarters).
COST OF SERVICE
Standard Fee: US $9,850.
This fee includes the CD (PDF) Market Forecast report and Database spreadsheets, analyst inquiry service, four (4) fiber optic industry global quarterly reviews as outlined above. Additional CD copies of the report and database (at time of subscription) are available for $800 each.
Multiple Users: Add US$3,285.
Add $3,285 to the Standard Fee ($9,850 + $3,285 = $13,135). This Option is available as a Same Business Group Site License.
QUALIFICATIONS OF ELECTRONICAST
ElectroniCast is uniquely qualified to undertake this project. Its activities in analyzing the technologies and markets for fiber optics have given it unparalleled component and application data bases. Its detailed and diligent research have provided the basis for projects of unusual complexity.
ElectroniCast's fiber optics analysis is widely utilized in strategic planning at the major telecommunications, cable TV, data communications and military contractor companies with significant investments in lightwave technology. Specialized communications and fiber optics trade press often cite by leading business publications and its fiber optics forecast and analyses.
RESEARCH AREAS
ElectroniCast covers all areas of the data and communication industries and fields impacted by communications, including:
• Systems and networks
• Equipment and subsystems
• Components and devices
• Materials and parts/devices
Most of the ElectroniCast projects are in the data communication, telecommunication networks and services, fiber optics, and photonics fields.
Please note.: The delivery time
for hard copies and CD-ROM is between 3-5 business days, as each is custom printed for the
organization ordering it.Table of Contents - 1. Executive Summary
1.1 Overview
1.2 Tunable Optical Filters
1.3 Fiber Optic Industry Overview
1.4 Communication Industry Trends
2. DWDM Filter Market Analysis and Forecast
2.1 Overview
2.2 Thin Film DWDM Filter Modules
2.3 Bragg Fiber Grating DWDM Filter Modules
2.4 Waveguide Array Grating Filter Modules
2.5 Other Technologies DWDM Filters
3. High Speed Optical Communication Trend
3.1 Overview
3.2 Fiber Network Technology Trends
3.3 Components
- 3.3.1 Overview
- 3.3.2 Transmitters & Receivers
- 3.3.3 Optical Amplifiers
- 3.3.4 Dispersion Compensators
- 3.3.5 Fiber Cable
3.4 Devices and Parts
- 3.4.1 Overview
- 3.4.2 Emitters and Detectors
- 3.4.3 VCSEL & Transceiver Technology Review
- 3.4.4 Optoelectronic Application-Specific Integrated Circuits
- 3.4.5 Modulators
- 3.4.6 Packages
- 3.4.7 Optoelectronic Integrated Circuits
4. Competitive Analysis and Profiles
4.1 Overview
4.2 Market Share Estimates
4.3 Competitor Profiles
5. Technology Review
5.1 Overview
5.2 Optical DWDM Filters
5.3 DWDM Filter Modules
6. Market Research Methodology
6.1 Research and Analysis Methodology
6.2 Assumptions of the Global Dense WDM Filter Module Market Forecast
7. Definitions
7.1 Acronyms, Abbreviations and General Terms
7.2 Data Base Category Definitions
8. Data Base
8.1 Introductio
8.2 Tutorial
8.3 Market Forecast Data Bases
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