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1 ELECTRON BEAM GUN SmartSource is a water-cooled electron-beam gun for thin-film deposition systems. The gun has an interlocking crucible cover to prevent cross-contamination of source materials. The machined angle on the crucible cover allows a minimum amount of evaporant to build up, preventing contamination from pocket to pocket. CHA Industries, Fremont, CA

2 OPTICAL ANALYZER The AP1040A optical analyzer measures the real chirp at 10 and 40 Gbit/s. Its two modules also allow it to be used as a pulse-shape analyzer, a high-resolution spectrum analyzer, and a tunable laser source. Its method is based on a complex spectral analysis of the optical field, allowing amplitude and phase of each frequency component to be extracted. APEX Technologies, Creteil, France

3 FLAT-TOP DWDMs A series of dense wavelength-division multiplexers are available with flat-top passband as well as Gaussian passband. They are available in 50-, 100-, and 200-GHz single-mode models. In the 100-GHz flat-top model the -0.5-dB passband is 0.2 nm (25 GHz), and the -1.0-dB passband is 0.28 nm (37 GHz). They are passive and athermal. APA Optics, Blaine, MN

4 POLARIZATION SCRAMBLER The PCS-1000 series polarization scrambler uses all-fiber technology to randomize polarization states. Scrambling input polarization can remove the measurement uncertainties caused by a testing device's sensitivity to polarization. Scrambling can also suppress the performance degradation caused by polarization-dependent gain and can simplify PMD emulation. General Photonics, Chino, CA

5 SIGNAL ANALYZER The CSA7404 digital oscilloscope is designed for optical systems with data rates up to 2.5 Gbit/s. It includes an optical reference receiver (ORR), an ORR filter library, an integrated optical/electrical converter, clock recovery, and signal triggering. It has 4-GHz bandwidth and can take 20 gigasamples/s. It handles several protocols. Tektronix, Beaverton, OR

6 OPTICAL LINEAR AMPLIFIER A variable-gain optical linear amplifier allows multiwavelength amplification with no distortion. It is based on indium phosphide semiconductor-optical-amplifier technology. When operated with automatic gain control, the devices will maintain a specific output power by introducing variable gain or loss. Kamelian, Oxford, England

7 POWER MODULE The PKJ 4128 PIT dual-output, half-brick dc/dc power module offers 3.3-V output at 12 A and 5-V output at 15 A for a total output power of 110 W. Each output channel is independent of the other. It includes protection against over-voltage, over-temperature, and current limit and provides both local and remote on/off and individual output-voltage adjustment. Ericsson Microelectronics, Richardson, TX

8 WAFER TESTER The model S400DC/RF automated test-equipment system can execute dc and RF tests independently and in parallel. It is compatible with both 200- and 300-mm probers. System configurations are available for single device testing up to 20 or 40 GHz and multiple device testing to 20 GHz. Keithley Instruments, Cleveland, OH

The IQ-5250 optical-spectrum analyzer is designed for measuring high channel counts and narrowly spaced wavelengths in DWDM networks. It covers the wavelength range from 950 to 1650 nm with a resolution of 50 pm. A double-pass Littman-Metcalf monochromator provides typical filter resolution of 35 pm in the C-band with a steep, high-rejection shape. Exfo, Quebec City, Que., Canada

Cladding mode-suppression fiber is to be used in the manufacture of fiber Bragg gratings. The grating is written into the core and the cladding to eliminate loss peaks in the transmission spectrum at wavelengths below the main reflection peak. It is photosensitive to UV and does not need hydrogenation for the writing of deep gratings. StockerYale, Salem, NH

The 81560A and -67A modular optical attenuators for the 40-Gbit/s test market include integrated power sensors, cutting down on the need for connectors. The devices allow power levels to be set directly without external iteration software. Software functions support a variety of calibration processes. Agilent, Palo Alto, CA

The PolarTune dynamic polarization combiner provides real-time polarization equalization with integrated feedback control for DWDM networks. The wavelength and polarization combiner integrates voltage-controlled optical attenuation for each input. The intensity of the optical inputs can be independently varied before combining the beams into a single output fiber. Chorum Technologies, Richardson, TX

A long-wavelength VCSEL has cw output power of 4 mW at room temperature, a spectral bandwidth of <0.2 nm, and side mode suppression better than 40 dB. It has single longitudinal and transverse modes and is designed to replace DFB lasers. E20 Communications, Calabasas, CA

The Mach-10 modulator controller combines a 12.5-Gbit/s modulator driver with bias control, dither, and power-conditioning circuitry to save power and space when driving external optical modulators. It allows modulator bias control, power sequencing or monitoring, and gain control. Codeon Corp., Columbia, MD

The 0420X and 0820X mux/demux modules for use in metro access markets offer 4 and 8 channels, respectively, at 200-GHz spacing. The 4-channel versions have <3.2-dB insertion loss, and the 8-channel has <5.6-dB insertion loss. Both have <1.2-dB channel uniformity and <0.2-dB polarization dependent loss. They measure 135 x 100 x 10 mm. ExceLight Communications, Durham, NC

A tunable optical attenuator is suitable for mounting on a printed circuit board. Features include latching capability, hermetic sealing, and feedback signal for attenuation monitoring. It can be used for gain flattening in optical amplifiers and dynamic power leveling in configurable optical networks. Global Opticom, Sunnyvale, CA

The R2860 family of single-ended receivers includes a 10-Gbit/s avalanche photodetector, a 10-Gbit/s PIN receiver with integrated limiting amplifier, and a 12.5-Gbit/s PIN receiver that provides space for forward-error correction. They can be used in short, intermediate, and long-haul 10-Gbit/s applications. Agere Systems, Ascot, England

The WISTOM optical-channel and optical-performance monitoring device measures wavelength, power, and optical signal-to-noise ratio of up to 128 channels. Proximion Fiber Optics, Kista, Sweden

Optical-communication hybrid integration-platform (OCHIP) transceiver modules operate at 2.5 or 2.7 Gbit/s for long-haul DWDM. The 1120 uses a PIN detector and the 1121 uses an APD detector. They incorporate a directly modulated, external-cavity, wavelength-stabilized, chirpless laser with <1-dB dispersion over 200 km of single-mode fiber. Cirrex Corp., Alpharetta, GA

An amplified spontaneous-emission light source designed to cover the entire S-band from 1480 to 1510 nm uses a thulium-doped optical fiber amplifier. The source is designed to be used when measuring and evaluating optical products for the S-band. NTT Electronics Corp., Tokyo, Japan

The optical wavelength manager is a shelf-level intelligent subsystem for monitoring and managing wavelengths in DWDM networks. It can be used with a switch, crossconnect, or add/drop multiplexer. It collects information on a channel's power, signal-to-noise ratio, and wavelength drift and can be used in the field or over the Web. Lightchip, Salem, NH

The PE8000 VSR VCSEL laser driver is designed for data rates from 155 Mbit/s to 3.125 Gbit/s. It has four independent channels on a single die, 100-mW/channel architecture, and a user-programmable 7-bit DAC for Ibias and Imod control to fine-tune the output power. It operates from a single 3.3-V supply. Peregrine Semiconductors, San Diego, CA

The 17 AWG 001 is an automated waveguide-alignment system designed for fiber-to-arrayed-waveguide-to-ribbon fiber applications. It includes parallel-flexure positioning stages, optical signal optimization, and high-resolution machine vision. ActiveX software allows users to develop custom alignment algorithms using LabVIEW, C++, Visual Basic, or other Windows-based development languages. Melles Griot, Rochester, NY

Tunable-wavelength fiberoptic filters have less than 0.5-dB polarization-dependent losses over a 50-nm tuning range and have no variation in transmission behavior with polarization. They have linewidth of 1.2 nm or larger covering the entire C-, L-, or S-band. They are manual or electrically controllable with back reflection as low as -60 dB. Oz Optics, Ottawa, Ont., Canada

An epoxy-free PD optical isolator can have a center wavelength of 1310, 1480, 1510, 1550, or 1609 nm, with minimum isolation of 35 dB in the single-stage format and 45 dB in the dual-stage, maximum insertion loss of 0.15-dB single-stage and 0.25-dB dual-stage, clear aperture of 0.9 mm, maximum optical power of 100 W/cm2, and operating temperature of 0°C to 60°C. O-Net International, Piscataway, NJ

The IPD-1 single-channel integrated photodetector array provides DWDM power monitoring in either the C- or L-bands, or a wideband version covers both the 1310- and 1550-nm windows. The package measures 3.2 mm in diameter and is designed for long-haul, metro core, and metro access networks. Santec Corp., Oxford, England

The ONWAVE multiplexer is designed for use with OC-192/STM-64 systems. It multiplexes four OC-48 and/or STM-16 services onto an OC-192 wavelength. The module plugs into the company's platform and can be configured by its network software. It also offers optional line and tributary protection services. ONI Systems, San Jose, CA

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