PLANO, Texas, Jan. 18 -- Optical component maker LaserComm announced it has secured $21 million in fourth-round funding from internal investors, led by Morgan Stanley Venture Partners and Index Ventures. The new capital will allow LaserComm to support its growing customer base, scale manufacturing, expand its Hi-Mode dispersion management product line and introduce new products based on the company's core technology. In addition to the round's leaders, many of LaserComm's previous investors joined in the round, including Cedar Fund, GE Equity, Gilde Investment Funds, Giza Group, Link Technologies and SSM Ventures. This additional funding brings LaserComm's cumulative financing to $77 million.