JPSA Laser, of Hollis, N.H., said it is expanding its facilities to include an enlarged laser job shop in a medical-grade clean room, an increased systems production floor engineering area, office space for expanded engineering, sales, marketing and administrative staff and a new cafeteria. Two new laser systems -- an excimer laser system and a short-pulse deep UV DPSS laser -- will be installed in the clean room. JPSA products and services include UV excimer and DPSS laser micromachining systems, UV and vacuum UV laser beam delivery systems, UV laser materials processing development, optical damage testing and excimer laser refurbishment services.   . . .   Photon Control Inc., a Canadian developer of photonic sensors and controls, announced it has signed a five-year exclusive supply agreement with Advanced Surfaces Inc. of Corona, Calif., which develops health care innovations for the prevention of surgical and diagnostically induced hypothermia. Photon Control will provide its fiber optic temperature sensors to be used in Advanced Surfaces' Cool/Heat heating pads, which are used in hospitals.