HP introduces low-cost fiber-optic transmitter and receiver for Ethernet connections over single-mode optical fiber

Business Wire, Dec 6, 1995

PALO ALTO, Calif.--(BUSINESS WIRE)--Dec. 6, 1995-- Hewlett-Packard Company today announced a new low-cost fiber-optic transmitter and receiver pair designed for operating Ethernet backbones over single-mode fiber.

These new LED-based single-mode components cost substantially less than typical laser-based single-mode fiber transmitters and receivers.

Vendors of Ethernet hubs, routers and adapter cards often find that end-users have installed single-mode fiber in their wiring systems, either for longer distance capability or in anticipation of future bandwidth requirements. HP's HFBR-0305 components can be used in proprietary single-mode fiber data links operating at distances up to 14 km, vastly extending the distance of Ethernet connections beyond the 2 km specification for multimode fiber backbone connections.

The HFBR-0305 series consists of the HFBR-1315TM transmitter and HFBR-2315T receiver. Both have ST style connectors and a 2x4 dual-inline footprint -- pin-compatible with and having the same footprint as HP's de facto industry standard HFBR-1414 850-nm transmitter and HFBR-2416 850-nm receiver for multimode fiber. Substitution of the HFBR-1315TM and HFBR-2315T for the HFBR-1414 and HFBR-2416, with the change of a few component values, converts a multimode fiber Ethernet product to single-mode fiber operation, without any changes to board layout.

The HFBR-1315TM transmitter incorporates a 1,300-nm-wavelength edge-emitting LED. The HFBR-2315T receiver contains an InGaAs PIN photodiode and a low-noise transimpedance preamplifier that operate in the 1,300-nm-wavelength region. -0-

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