EM4 designs, develops and manufactures state-of-the-art, ruggedized, optoelectronic components and packages  for the Defense, Aerospace, Life Science, CATV, Telecommunication and Industrial markets. EM4 is part of a global group of specialized optical companies that form Gooch & Housego.

At  EM4 we design and produce:

  • Direct modulation laser transmitters for analog RF over fiber links

  • High speed detectors

  • Fiber laser pumps & components

  • Fiber amplifier pumps & components

We offer both Commercial-Off-the-Shelf (COTS) optoelectronic modules and unique Optoelectronic Design and Manufacturing Services (ODMS). We are ITAR registered, US-based and fully equipped to handle your custom or COTS fiber-optic, opto-electronic component and sub-system requirements.