News | March 21, 2007

Hamamatsu To Introduce Several New 10 Gbps ROSA Devices

New receivers are designed for 10 Gigabit Ethernet, SONET/SDH, XFP modules, and other applications.

Bridgewater, NJ — Hamamatsu Corporation is introducing several new 10 Gbps ROSA (Receiver Optical Sub-Assembly) devices for optical fiber communications of various types, including 10 Gigabit Ethernet, SDH/SONET, and WDM systems. The new devices will be on display at the OFC/NFOEC exhibit (booth #2567) from March 27 to 29 at the Anaheim Convention Center in Southern California.

For short-range 10 Gigabit Ethernet applications, the G10447 series GaAs PIN photodiode with preamp supports 10 Gbps bit rates at 850 nm. The G10447 series consists of a plastic package, 1.25 mm diameter sleeve-type ROSA for LC receptacles (G10447-54) and a plastic package, 2.5 mm diameter sleeve-type ROSA for SC receptacles (G10447-51). It has a large 60 micron active area for multimode optical fibers, and provides differential output, typical gain of 6 kohm, and minimum receivable sensitivity of typically -13.5 dBm (OMA, extinction ratio: 3.0 dB). Power supply voltage is 3.3 V.

Another product for short-range applications is the G10208 series InGaAs PIN photodiode with preamp, which can be used with multimode fibers for 10GBASE-LRM and other 10 Gigabit Ethernet transmission at 1300 nm. The G10208 series consists of plastic package, 1.25 mm diameter sleeve-type ROSA for LC receptacles (G10208-54) and a plastic package, 2.5 mm diameter sleeve-type ROSA for SC receptacles (G10208- 51). Features include differential output, low power supply voltage of 3.3 V, and minimum receivable sensitivity of typically -15 dBm (OMA, extinction ratio: 3.5 dB). A built-in transimpedance amplifier provides automatic gain control.

For short to long-range applications, the G10342 series InGaAs PIN photodiode with preamp supports bit rates of up to 11.3 Gbps at 1300 nm or 1550 nm. This series conforms to XMD-MSA specifications for 10 Gbps miniature devices, which ensures compatibility with 10 Gigabit Ethernet, SONET OC-192/SDH STM-64, and XFP modules. In the G10342 series, housing and signal ground are electrically isolated. Other features include low power supply voltage of 3.3 V, differential output, high transimpedance gain of 6 kohm, and minimum receivable sensitivity of typically -20.5 dBm (average extinction ratio: 14 dB). Low optical return loss of 35 dB is another benefit.

In addition to the 10 Gbps ROSAs, Hamamatsu will display a variety of other optical communications devices at OFC/NFOEC 2007, including InGaAs linear image sensors for WDM systems. These sensors are especially useful for monitoring power and wavelength in ROADM equipment in today's growing metro optical networks.

For more information about specific products, including pricing and delivery time, please call Hamamatsu Corporation at 1-800-524-0504 or visit the company's website, http://sales.hamamatsu.com.

SOURCE: Hamamatsu Corporation