Dr. Martin H. Ettenberg has joined Princeton Optronics as vice president of sales, marketing and business development, the company announced. In his new position, Ettenberg will report to Dr. Chuni Ghosh and will lead the company’s global sales and business development organization. Prior to joining the company, he worked for more than 14 years at Goodrich ISR Systems, previously Sensors Unlimited Inc. Princeton Optronics is a provider of high-power single and multimode VCSELs and VCSEL arrays. For more information, visit: www.princetonoptronics.com