Wave7 Optics said Wednesday that it received a $23 million second round of funding, led by Advanced Technology Ventures. Other investors included Mellon Ventures and Armada Venture Partners, along with previous investors Morgenthaler and Lucent Venture Partners. Advanced Technology Ventures will receive a seat on Wave7 Optics' board. Alpharetta, Ga.-based Wave7 Optics has raised a total of $32 million. The company develops optical access equipment designed to bring fiber to homes and businesses as part of the "last mile" of broadband connectivity.