Deutsche Telekom has joined fellow telecommunications firms Ericsson and Nokia Siemens in backing optics specialist Skorpios Technologies.

US-based optical communications company Skorpios Technologies secured $2m on Tuesday from T-Venture, the corporate venturing unit belonging to telecommunications firm Deutsche Telekom, bringing its series B financing to $21m.

Skorpios had already raised $19m in series B funding, in September, from telecommunications conglomerates Ericsson and Nokia Siemens Networks, as well as private equity and venture capital (VC) firm Sun Mountain Capital and VC fund the Cottonwood Technology Fund.

Skorpios previously raised $2.2m in series A funding from Cottonwood and Sun…