DFB MODULES
Two NEC InGaAsP DFB laser-diode modules are designed to serve as 1550-nm CW light sources. The NX8562LB operates at 10 mW and the NX8563LB operates at 20 mW, with a spectral linewidth of 2 MHz. They are designed for long-haul DWDM, metro network, metro access, and other OC-48 transmission systems that use external modulators. They are housed in hermetically sealed 14-pin butterfly packages that include internal thermoelectric coolers and internal isolators.
California Eastern Laboratories, Santa Clara, CA
WAFER INSPECTION
An inspection system for 300-mm wafers combines automated wafer handling, factory hardware, and software interface capabilities. It can run multiple wafer sizes without mechanical changeover. It has a dual loadport configuration with an optional secondary user interface for bulkhead mounting in bay and chase facilities. Throughput is up to 43 wafers/h, and optional SMIF capability and custom configurations are available.
August Technology Corp., Bloomington, MN
FIBER LASER
The BWC-OEM-FL fiber laser in an OEM module provides up to 20 W of output at 1115, 1455, or 1480 nm out of a standard single-mode fiber. It is powered by a standard telecom 48-V dc power supply. Applications include pumping for distributed Raman amplification and for EDFAs.
B&W Tek, Newark, DE
OPTICAL FILTERS
The TF-WDM filters for multiplexing and demultiplexing are available in 50- and 100-GHz spacing with transmission bandwidths of greater than 0.1 and greater than 0.2 nm, respectively, at -25 dB. Reflectivity at peak wavelength is greater than 99%, sidelobe suppression ratio is greater than 30 dB, and temperature sensitivity is less than 1 pm/°C.
TeraXion, Que., Canada
GAIN-FLATTENING FILTER
An all-fiber gain-flattening filter is a long-period grating written into bare fiber using fused taper technology. For network systems, the accumulated error per amplifier is typically less than 60% of the mean error function of the individual filters. The filter can be used for high-power handling in EDFA gain flattening and ASE noise suppression.
JDS Uniphase Corp., San Jose, CA