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u?t Photonics photoreceivers use Inphi amps

Posted: 17 Sep 2003 ?? ?Print Version ?Bookmark and Share

Keywords:u²t photonics ag? inphi? photoreceivers? kprv2021? kprv2022?

u?t Photonics AG has developed with Inphi Corp. two differential pin-TIA photoreceivers for SONET OC-768/SDH STM-256 fiber optic networks. The KPRV2021 and KPRV2022 photoreceivers incorporate Inphi's TIAs, which operate at data rates up to 43Gbps, and provide equipment manufacturers with a cost-effective solution across multiple wavelengths for metro, short reach, and long haul transmission systems.

The KPRV2021 and KPRV2022 photoreceivers incorporate Inphi's high-bandwidth 4334TA TIA and high-gain 4331TA TIA, respectively, with a limiting output buffer and the company's waveguide-integrated pin photodiode.

With an optical-to-electrical bandwidth of 40GHz and a differential conversion gain of 300V/W, the KPRV2021 is designed specifically for OC-768 applications, and features a control option to adjust DC offset between differential outputs. The KPRV2022 module has an optical-to-electrical bandwidth of 33GHz with a differential conversion gain of 1,000V/W and is designed for high sensitivity non-return-to-zero (NRZ) applications.

Fabricated in indium phosphide, both receivers exhibit a supply voltage of 3.3V and power dissipation of <350mW. The products come in an MSA-compliant small form factor package, which provides direct access to the differential RF output as well as to the DC lines via a coplanar waveguide ceramic feedthrough.





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