10-Gbit/s ac-coupled digital receivers are designed for OC-192/STM-64 telecommunications systems. The digital receivers incorporate a high-speed planar PIN diode and transimpedance amplifier. Model 2860E has transimpedance of 1200 Ohms and 2860F of 2000 Ohms. They operate on flexible supply voltages of ±5, +8, or -8 V.
Ortel Corp., Alhambra, CA
980-NM PUMP MODULE
The PL980S 5000 Series 980-nm pump module combines a 980-nm package and chip technologies. It produces up to 200-mW rated operating power with wavelength-locking and low-frequency noise performance.
JDS Uniphase, Devon, England
A range of thin-film polarizers can be used in the UV-A range from 340 to 440 nm. They have an extinction ratio of better than 5000:1 at 355 nm for the transmitted beam (Tp:Ts). They are intended as alternatives to crystalline polarizers.
LINOS Photonics, Milford, MA
RAMAN FIBER LASER
The Streamline-RL is an integrated, turnkey Raman-fiber laser system for telecommunications component development and reliability testing to Telcordia specifications. The rack-mounted box contains a single 35-W semiconductor-laser bar pump source, the fiber laser, a cascaded Raman cavity, and power supply and control electronics. It delivers >5-W randomly polarized output from a SMF-28 single-mode fiber at wavelengths of 1450, 1455, or 1480 nm.
Spectra-Physics, Mountain View, CA
A real-time power monitor provides DWDM equipment control in complex networks. A primary application is in erbium-doped fiber amplifiers where dynamic range of the EDFA can be increased. The device also allows monitoring of configurable optical add-drop multiplexers.
ADC Telecommunications, Minnetonka, MN
The Q7760 optical-network analyzer can measure the characteristics of optical components in the optical-carrier frequency domain. Measurements include PMD, amplitude characteristics, and group delay. Transmission and reflection characteristics can be measured simultaneously. The zero-dispersion wavelength of optical fiber and chromatic-dispersion slope characteristics can also be tested.
Advantest, Tokyo, Japan
The 81662A distributed feedback (DFB) laser is designed for use in the L band with 100-GHz spacing. The source can be used with DWDM systems and optical amplifiers. Up to 17 modules can be hosted in a single mainframe, and the modules can be controlled via a keyboard of GPIB and work with all of the company's optical test mainframes.
Agilent Technologies, Palo Alto, CA
C-lens collimators exhibit low insertion loss and high isolation for use in MEMS optical switches for either a long working distance or miniature size. The beam profile is compatible with other collimators for use in a DWDM module.
CASIX, Fuzhou, Fujian, China
OPTICAL-AMPLIFIER TEST SYSTEM
The ME7890B optical-amplifier test system uses a combination of the optical pulse and probe methods. It has noise figure accuracy better than 0.3 dB from 1530 to 1570 nm and better than 0.4 dB from 1570 to 1620 nm. Gain measurement accuracy is better than 0.125 dB over the wavelength range, with reproducibility better than 0.1 dB.
Anritsu Corp., West Sussex, England
The DSC10ER photodiode from Discovery Semiconductors delivers 60-GHz bandwidth for the return-to-zero (RZ) format and is also suitable for 80-Gbit/s nonreturn-to-zero data. RZ data formats require 50% extra analog bandwidth in the photodetec tor to achieve clean eye diagrams with low jitter.
Discovery Semiconductors, Munich, Germany
The BWC-M multichannel source includes stabilized Fabry-Perot laser diodes at wavelengths from 960 to 1650 nm. It features stabilized optical-output power, external synchronization, and internal modulation of 200 Hz. The system can be monitored and controlled by the user's specified analog ports. Applications include passive-WDM component testing and use as a reference source for optical communication.
B&W Tek, Newark, DE
OptSim 3.1 simulation software is for the design of optical transmission networks. This version includes a multipump Raman amplifier model. Also included is an increase in the speed of simulation of multiple-node optical networks and long-haul systems. The software includes Monte Carlo run simulation to evaluate sensitivity to all-order PMD effects.
ARTIS Software, San Jose, CA
The Rapid Confocal Sensor merges confocal microscopy with optical design and software algorithms to provide 3-D inspection technology for the microelectronics industry. It was designed for wafer bump inspection in semiconductor manufacture but can be extended to optoelectronics, MEMS, and other microstructures.
August Technology, Bloomington, MN
The MetroFlex line of variable-wavelength optical transmission modules are subsystems based on VCSELs for remote provisioning and dynamic assignment of protocol-transparent wavelengths in metro networks. The SONET- and ITU-T-compliant modules in L- and C-band versions offer modulation rates from OC-3 to OC-48, with channel spacing of 100 GHz.
Bandwidth9, Fremont, CA
PUMP LASER SOURCE
The NX7460LE 1480-nm pump laser source from NEC is designed for long-haul DWDM, metro network, and EDFA applications. It has output of 140-mW typical at IF = 550 mA CW. Operating temperature is from 0°C to 65°C. It includes an InGaAsP laser diode, an internal optical isolator, and a thermoelectric cooler in a hermetically sealed, 14-pin butterfly package.
California Eastern Laboratories, Santa Clara, CA
Optocast AC-3762 is an acrylated epoxy-based one-component adhesive/encapsulant designed to give adhesion to polymeric substrates, such as polycarbonate, CAB, and PMMA, and to inorganic substrates, such as ceramic, glass, and metals. The clear liquid has a Newtonian viscosity of 5000 cps and a refractive index of 1.52.
Electronic Materials, Breckenridge, CO
Erbium-doped fiber for the manufacture of erbium-doped fiber amplifiers is targeted at wavelengths used by most EDFAs. It includes fiber optimized for use in the C and L bands.
StockerYale, Salem, NH
IR SPOT CURING
The Novacure IR is an infrared spot-curing system for inline curing of thermal epoxies. Light of 0.7 to 4.5 µm from a 150-W quartz halogen bulb provides the curing, and a thermal sensing and reporting system provides precision, control, and repeatability. A noncontact temperature sensor can automatically adjust lamp output in closed-loop feedback mode.
EFOS, Mississauga, Ont., Canada
A high-isolation add/drop wavelength-division multiplexer has an insertion loss of <1.0 dB and is available in 1310, 1550, or a combined 1310/1550 nm. The device has an operating bandwidth of ±40 nm, wavelength isolation of >40 dB, directivity of >60 dB, PDL of 0.2 dB, return loss of >45 dB, and operating temperature of -40°C to 85°C.
Edmund Industrial Optics, Barrington, NJ
An all-fiber polarization scrambler converts any input polarization state into a depolarized state by fast polarization modulation. It has typical insertion loss of 1.5 dB, output polarization of <5%, and back reflection of <-60 dB. It deals with problems such as polarization-hole burning of EDFAs and polarization dependence problems in distributed optical-fiber sensors.
Fiberpro, Taejon, Korea
A dense wavelength-division multiplexer has 200-GHz ITU channel spacing and is based on thin-film fiber technology. It has typical transmit-channel insertion loss of 0.8 dB and reflect-channel insertion loss of 0.35 dB. It is manufactured with micro-optomechanical fusion techniques for a good bandpass curve.
HD FiberSystems, Santa Clara, CA
The HLU15F200-980 laser diode can generate output power of 15 W through a fiber core of 200 µm at 980 nm for pumping fiber lasers.
LIMO GmbH, Dortmund, Germany
Gain-flattening filters can be custom-manufactured to meet specified gain profiles in the C and L bands. The passive devices typically have an insertion loss of <2 dB, PDL of <0.05 dB, and a temperature coefficient of <2.0 pm/°C. Typical sizes are 1.4 x 1.4 x 1 mm. They are available in engineering quantities or production volumes.
Iridian Spectral Technologies, Ottawa, Ont., Canada
The MAX3840 is a +3.3-V dual-path crosspoint switch for signals up to 2.7 GHz. Power consumption is 460 mW. It has 15-ps channel-to-channel skew. Based on SiGe process technology, it has 100-ps rise and fall times, 7-ps deterministic jitter, and 2-ps rms random jitter. It is available in a 32-pin QFN package and operates over -40°C to 85°C.
Maxim Integrated Products, Sunnyvale, CA
FIBEROPTIC TEST SOFTWARE
KITS version 2.0 test software is used with the company's KI7600 power meter for data acquisition, reporting, and acceptance of fiberoptic measurements. It uses mathematically correct averaging of two decibel measurements, resulting in lower rejection rates. The 32-bit Windows-based software uses the latest VB, COM, ActiveX, and OLE technology and can enter live data directly into an Excel spreadsheet.
Kingfisher International P/L, Rowville, Victoria, Australia
A variety of fused components include wideband couplers, splitters, taps, coarse WDMs, and gain-flattening filters meet the Telcordia GR-1209-CORE and GR-1221-CORE standards. They include 1 x 2 and 2 x 2 port configurations and are available with 250-µm fiber or 900-µm loose tube leads.
FONS Corp., Northborough, MA
FIBEROPTIC ELEMENTSFiber couplers and coated fiberoptic elements can be manufactured under contract for suppliers of DWDM. Proprietary technology based on near-field fiberoptic-element production techniques is used. Full testing of all manufactured components, including detailed tests of light leakage, is provided.
Nanonics Ltd., Malcha, Israel
RAMAN FIBER LASER
The OI-RFL series of Raman fiber lasers is designed for remote pumping of high-power EDFAs, distributed Raman amplification, and component testing. Outputs of 2 and 4 W are available at a choice of wavelengths from 1365 to 1495 nm. Options include an integral isolator, bandpass filter, and pumps combiner.
Keopsys, Lannion, France
TUNABLE LIGHT SOURCE
The model OETLS-100 tunable light source combines wide-range tunable filter grating and spectrum splicing technology. Bandwidth of the light source can be set from 0.02 nm to a few millimeters to meet customer requirements. The wavelength range available is 1530 to 1620 nm.
O/E Land, Lachine, Que., Canada
Fiber patchcords can be welded or soldered into a package to provide a hermetically sealed joint that meets Telcordia specifications. Single-mode, multimode, and polarization-maintaining fiber versions are available. They use gold-plated fibers, soldered into gold-plated Kovar or stainless-steel seal tubes. Connectors and ferrules can be added to either side of the patchcord.
Oz Optics, Ottawa, Ont., Canada
OPTICAL SYSTEM SOFTWARE
OptiSys_Design software for Windows helps design and optimize optical links in the physical layer of a range of optical networks. It uses a hierarchical definition of components and systems, and users can add components and interfaces to a range of tools. A library of active and passive components includes wavelength-dependent parameters.
Optiwave Corp., Nepean, Ont., Canada
A range of single- and dual-wavelength laser- and LED-light sources operate on a single internal 9-V battery or optional 120-V ac adapter. They are available with FC, ST, or SC optical ports and adapters as well as a 2.5-mm universal adapter. Sources include Fabry-Perot laser diodes at standard wavelengths and VCSELs at 850 nm. LED sources use 850- or 1300-nm LEDs.
Cercis, Hopewell, NJ
A 40-channel dense wavelength-division multiplexer and a 40-channel variable optical attenuator are integrated into a single module. The device uses P-core silica-on-silicon planar-lightguide-circuit technology. The VOA equalizes the optical signal intensity from up to 40 separate laser sources with individual wavelengths, then routes them to an arrayed-waveguide grating for combination onto a single fiber.
SDL, San Jose, CA
A lensed fiber assembly has the fiber end polished for self-focusing, allowing it to use the full optical power of the pump laser. The package is hermetically sealed. The fiber can be used for both passive and active devices.
Seikoh-Giken Co. Ltd., Chiba, Japan
Optical circulators meet ISO-9001 standards. They have low loss and are compact for use in ADM and DWDM systems.
Tokin Corp., Tokyo, Japan
The Lightray MPX optical interconnection system is designed for blindmate backplane and other dense fiber-to-fiber interconnect applications as well as for standalone interconnections requiring bulkhead porting. Multifiber array connectors hold up to 12 fibers on 250-µm centers using a single glass-filled polymer ferrule. The system is available in a wide range of configurations.
Tyco Electronics Corp., Harrisburg, PA
TUNABLE FIBER MONITOR
The Opto-Electronics Model TFM 150 is a short-haul, millimeter-resolution, zero dead-zone, real-time, high-sensitivity optical time-domain reflectometer, with a probe wavelength tunable over a 30-nm band in the 1550-nm region. It is designed to measure insertion and return loss of WDM components over a range of wavelengths. It is ideal for the measurement of splice losses in concatenated Bragg reflector chains, the characterization and testing of WDM mux/demux and add/drop components as well as fiber channels. The TFM 150 is also capable of analyzing intermittent faults in WDM circuits and components in real time.
Opto-Electronics Inc., Oakville, Ont., Canada
AngströmBond AB9300 is an optically clear, low-viscosity epoxy designed for applications requiring continuous use at 265°C. The two-part rigid system allows bonds to metal, glass ceramic, and most plastics. Fully cured material will produce a high glass-transition temperature that allows for stability during temperature cycling.
Fiber Optic Center, New Bedford, MA
OPTICAL SPECTRUM ANALYZER
The FTB-5240 portable optical spectrum analyzer has an output port option that allows the user to drop a specific DWDM channel to an external unit for complementary signal testing. The spectral window is from 1250 to 1650 nm, with accuracy of ±0.3 dB in power and ±0.05 nm in wavelength, and an optical rejection ratio of 50 dBc at 50 GHz.
EXFO, Quebec City, Que., Canada
SMC connector assemblies use the NTT-compatible MT ferrule and alignment pin system that connects 4 to 24 fibers using bare ribbon fiber or a ruggedized-jacketed cable. In a single-mode assembly, an 8°-angle polishing process controls back-reflection. It is also available in multimode style. A bulkhead adapter has an internal shutter for dust and eye safety and an EMI shield.
Molex Fiber Optics, Lisle, IL
Software for the FLM line of add/drop multiplexers, 15.1S/BS, has an autoconfiguration feature to reduce the time required to install a new shelf. Signal auto-detection allows the user to preprovision and test a new service. Users can change the security level of TL-1 commands and have support for provisioning narrowband optics.
Fujitsu Network Communications, Richardson, TX
OPTICAL TEST MODULES
A three- and a four-wavelength optical module tests single-mode fiber with the CMA4000 Optical Test System. The modules support 1310-nm networks and C-band systems at 1550 nm and will support future backbone networks using L-band DWDM, metro networks using DWDM in the S-band, and networks using the 1350- to 1450-nm window.
GN Nettest, Utica, NY
ANALOG LASER MODULE
The A1751A DWDM analog laser module operates from 1528.77 to 1561.42 nm for forward-and-return path DWDM cable television applications. It operates from -40°C to 85°C and can be used in both indoor and outdoor equipment and with a denser chassis design. It has lens and fiber-coupling configurations that boost maximum output to 10 mW, and has a frequency range of 5 to 870 MHz.
Lucent Technologies Microelectronics Group, Alhambra, CA
OPTICAL MODULATOR DRIVER
The H301 optical modulator driver for external laser modulators can drive EML, EAM, and Mach-Zender style modulators and meets SONET and SDH standards for OC-192, 10-Gbit/s optical transmitters. It uses 4.9 W and operates from -40°C to 85°C, with frequency response of 75 kHz to 10 GHz, gain of 14 to 24 dB, and maximum gain ripple of ±1.5 dB.
JDS Uniphase Corp, Nepean, Ont., Canada
PS-RMS-50 single-mode optical fiber for mass production of fiber Bragg gratings has core and cladding photosensitive to UV radiation, which minimizes transmission losses. It is designed for operation at 1275 and 1650 nm and has mode field diameter and NA to allow low splice losses to conventional fiber.
Lasiris, St.-Laurent, Que., Canada
FIBER ROUTING BOARDS
Optical-fiber routing boards in a 64 x 64 crossconnect configuration allow the management of multiple optical fibers in backplane and intershelf communications. They can also be used for high-count fiber connections and crossconnections. A large number of discretely routed fibers are embedded in a lightweight polymer board. The routing pattern can be custom designed.
Moritex Europe Ltd., Cambridge, England
Polarization-mode dispersion (PMD) compensators are able to compensate the second order PMD of a transmission fiber independent of signal format and bit rate. Each unit operates individually for each ITU channel in front of the optical receiver. A control algorithm optimizes the eye diagram of modulated signals.
Profile, Rockaway, NJ
UV CURING CEMENTS
A line of UV curing cements works with glass, metal, or plastic substrates and offers varying viscosity, refractive index, and curing times.
Summers Optical, Fort Washington, PA
FIBER WINDING SYSTEM
The RS 100 FO tabletop winding system for optical fiber has both a spooler and pay off. It can be operated from a standing or sitting position. The control panel allows digital entry of winding parameters such as package width and material length, and a stepper motor provides pitch control with readout in 2.5-µm increments.
Progressive Machining Co., Ringwood, NJ
The TF-WDM DWDM filters for 50- and 100-GHz channel spacing are based on fiber Bragg grating technology. They provide flat top response with a steep spectral roll-off. They have a sidelobe suppression ratio of >30 dB, reflectivity at peak wavelength of >99%, and temperature sensitivity of <1 pm/°C.
TeraXion, Ste.-Foy, Que., Canada
CABLE ROUTING SYSTEM
FiberRunner is a 6 x 4 system that provides routing, segregation, and protection of fiberoptic cabling between and around distribution frames, terminal devices, and splice enclosures. It uses the company's connector couplers, brackets, and tee-fitting parts. Spillout options include a three-sided trumpet, inner-duct transition to corrugated tubing, or transition to a 4 x 4- or 2 x 2-slotted duct.
Panduit Corp., Tinley Park, IL
A series of fiberoptic couplers works with the 1550-nm wavelength. They split an input beam from one fiber into two, three, or four fibers with output beams of equal amplitude. They are provided with bare fiber ends, allowing the use of custom connectors. They have a ratio tolerance of ±2%, an operating temperature range of -20°C to 70°C, and additional loss of <0.10 dB per split.
Edmund Industrial Optics, Barrington, NJ
PUMP LASER COMBINER
The WavePump pump laser combiner can handle 6 W for 1 h, or 3 W for more than 500 h, for use with DWDM systems or Raman amplifiers for ultralong-haul networks. It can handle multiple pump lasers and serve as an alternative to polarization-beam combiners or thin-film filter devices.
WaveSplitter Technologies, Fremont, CA
Tra-Bond F123 is color-coded material for proper mixing. The material, for fiberoptic and other bonding, cures at elevated temperatures.
Tra-Con Inc., Bedford, MA
Dual-pacs are two-part, premeasured adhesive materials packaged in 1:1 and 2:1 cartridges. The cartridges, in 50- to 400-ml sizes, mix the reactive adhesives at time of use through a disposable nozzle. A selector guide that lists a variety of adhesive, potting, and encapsulating compounds for use with the device is included.
Appli-tec, Haverhill, MA
An attenuator-switch element provides power control and isolation switching within a single element. It allows attenuation control up to 20 dB and a greater than 60-dB off condition, with low insertion loss and back reflection. It is also available in a PM fiber option.
ProtoDel International, Hackbridge, Surrey, England
OPTICAL COATING SYSTEM
The Spector optical coating system has a flip fixture that uses an automated in situ flip that coats both sides of a substrate without venting the chamber, speeding processing time. The fixture has uniformity of <1.0% over 290 cm2 and deposition rates of 2 to 3 Å/s. Film stress is <350 Mpa, HR coating reflectance is >99.9%, and AR coating reflectance is <0.1%.
Veeco-Ion Tech, Fort Collins, CO
The Optocast 3553LV series of cationically UV-cured epoxy resins is designed for the joining of fiberoptics. They have viscosity of 500 cps and Tg of 140°C. They are 100% solids, are resistant to moisture and chemicals, and cure with UV light between 325 and 380 nm. The UTF-HW version is for high-energy substrates, and the UTF-HM version can also be heat-cured.
Electronic Materials, Breckenridge, CO
CHANNEL ACCESS TEST
The WSP100 DWDM channel access test set is the most portable DWDM tester available today. Designed to measure channel spacing in the C band to 50 GHz, the WSP100 offers complete ITU diagnostic measurements for DWDM systems. The WSP 100 measures just 9 x 8 x 3 in. and runs on rechargeable batteries. The large, easy-to-view backlit screen displays sweep results in either tabular or graph form with failed channels highlighted for easy troubleshooting. User selected thresholds allow customized testing and the WSP100 can also be remotely controlled for network monitoring tests. A built-in power meter offers +26 to -50 dBm power and loss measurements at 850/980/1310/1480/1550 and 1625 nm.
Noyes Fiber Systems, Belmont, NH
The FM30-1 cladding pumped fiberoptic amplifier provides 1 W of optical power through a single fiber and the FM30-8 provides 800 mW split among eight fibers. The amplifiers use 1-W multimode pump modules and provide up to 33 dB of gain in the 1545- to 1560-nm range, with a gain flatness of 1.5 dB and typical noise figure of 5 dB.
SDL, San Jose, CA
The N3970A handheld optical-power meter has overall accuracy of 3% and no need for a warm-up period. It measures 1310- and 1550-nm signals and stores the results in one of 845 flexible memory positions. It has three interchangeable push-pull adapters for the connectors and 240-h battery life. It can automate loss-testing functions and provide automatic wavelength identification.
Agilent Technologies, Palo Alto, CA
TRA-BOND F113SC is a room-temperature-curing adhesive with a low viscosity for bonding fiberoptic connectors as well as other optical components, such as lenses and LED displays. It has a dark blue color upon cure for easy polishing and a high glass-transition temperature for strength. It is also available in premixed and frozen syringes.
TRA-CON Inc., Bedford, MA