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2.5 G/bs DWDM Lasers
Oct 2006
Applied Optoelectronics Inc. (AOI)Request Info
SUGAR LAND, Texas, Oct. 3, 2006 -- Applied Optoelectronics Inc. (AOI), a manufacturer of laser diodes, photodetectors and optical modules for fiber optic communications systems, has introduced dense wavelength division multiplexing (DWDM) transmitter lasers capable of 200-km transmission distances.

The lasers, which use AOI's advanced molecular beam epitaxy fabrication technology, also feature the following:
  • Greater than 200-km (3,600 ps/nm) transmission in a single-mode fiberIntegrated high-speed, low-dispersion penalty distributed-feedback, multiquantum-well laser
  • Compatible with direct modulation at up to 2.5 Gb/s, for OC-48/STM-16 applications
  • Available in a full range of C-band ITU-T G.692-recommended wavelengths at 100-GHz spacing
  • Hermetically sealed, industry-standard 14-pin butterfly package with optical isolator
  • 25-W radio frequency input impedance
  • Meets GR 468 reliability specifications
Zulfikar Morbi, product manager at AOI, said, "As fiber optic communication networks are expanding and growing, the demand for more cost-efficient solutions is rising. DWDM technology allows network operators to increase their capacity while avoiding the costly installation of additional infrastructure. With AOI's advanced molecular beam epitaxy fabrication technology, we can provide a long-reach product that guarantees the transmission distance necessary to meet this emerging customer demand."

Also available is a 10-mW DWDM "butterfly"-packaged laser for 120-km transmission distance without an erbium-doped fiber amplifier. This device combines the low dispersion penalty of 200-km devices with +10-dBm optical output power. This combination enables amplifier-free operation in many metropolitan-area network applications, AOI said.

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