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Newsletter "SEI NEWS" 2012

Home > Company Information > SEI WORLD > Back number > Vol.423

[Newsletter "SEI NEWS" Vol.423]

Sumitomo Electric Begins Shipping Samples of 10 Gbit/s Direct Modulation TOSA

10 Gbit/s direct modulation TOSA

Sumitomo Electric has successfully developed and commenced shipping samples of 10 Gbit/s direct modulation TOSA※1 for high-bit-rate optical transceiver devices such as XFP and SFP+, which are essential for public communications and LAN.

When used even with conventional low-bit-rate packages up to 2.5 Gbit/s, the newly developed TOSA provides excellent high-frequency characteristics and favorable optical waveforms in a wide temperature range from -40°C to 90°C.

Moreover, its metal parts are partially covered with plastic to insulate the signal ground from the frame ground, features specific to high-bit-rate devices.

Since the TOSA is compliant with XMD-MSA※2, demand for it is expected for both Telecom (ITU-T※3) and Datacom (IEEE※4) 10 Gbit/s transmission applications.

※1. TOSA:
Transmitter optical sub-assembly
※2. XMD-MSA:
TOSA and ROSA multisource agreement for 10 Gbit/s modules
※3. ITU-T:
International Telecommunication Union Telecommunication Standardization Sector
※4. IEEE:
Institute of Electrical and Electronics Engineers

Sumitomo Electric Device Innovations, Inc.

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