Accelerated Technology Inc. announced that its Nucleus RTOS has been used to develop precision laser power and energy measurement technology from Molectron Detector Inc. of Portland, Ore. Molectron's 3sigma is a multifunction, portable laser power/energy meter used in field service, laser product test, medical laser system performance, optical power and pulsed laser energy stability applications.   . . .   General Photonics, developer of dynamic photonic signal control technology, has moved into new, larger headquarters and manufacturing space at 5228 Edison Ave., Chino, Calif. New management recruits include James Shen as vice president of business development and Yongqiang Shi as chief scientist.