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25 January 2007


Opnext boosts red lasers output power for display and medical applications

Opnext Inc of Eatontown, NJ, USA has introduced upgrades to its red laser diodes, resulting in the highest optical output power red laser diodes available, it claims (90mW in the 640nm wavelength band). The lasers are suitable for applications in next-generation displays, sensor light sources in medical and industrial equipment, optical fiber checkers, laser levelers, and measurement equipment (distance meters and positioning sensors such as in chip mounters).

This achievement was accomplished through a new process which includes a new waveguide structure and optimized structure parameter. The active layer thickness and facet reflectivity results in lower operating current, which makes it possible to lower the power consumption needed without sacrificing the 90mW high optical output power, as well as extending battery life for battery-powered equipment, the firm says.

The new lasers can be used in new applications.  “By improving Opnext’s previous laser diodes by offering higher optical output, Opnext is well-positioned to meet the growing industry demand to support display and medical applications,” said Tadayuki Kanno, senior vice president of Opnext’s module and device business units.

Volume shipments of the HL6366DG, HL6367DG and HL6378DG are scheduled to begin in February.

* Opnext ships quarter millionth 10G transceiver

Opnext says it has shipped more than 250,000 10Gigabit/sec transceivers.

The firm was formed in September 2000 from the resources of the Fiber Optic Components Business Unit of Hitachi Ltd, funded by the Clarity Group, and still receives the support of Hitachi's R&D efforts, including the Central Research Laboratory (CRL), Mechanical Engineering Research Laboratory (MERL), and Production Engineering Research Laboratory (PERL).

Opnext offers 10G products including 300-pin, XENPAK, X2, XPAK and XFP, encompassing all port types within these form factors. The company’s modules support SONET OC-192, SDH STM-64 and 10GbE protocols enabling long-reach terrestrial transmission, metropolitan area network, OADM, access, enterprise switching, high-speed data and storage communications. Opnext’s products are on display at this week’s FOE 2007 (Fiber Optic Expo) in Tokyo, Japan.

Opnext’s 10G 300-pin and X-Module transceivers fully comply with industry standards from ITU-T G.691, G.709, and IEEE 802.3, and OIF recommendations, and support electrical interfaces including SFI-4, XAUI and XFI, easing the integration onto system host boards, the company says.