optical-optical conversion efficiency
Optical-optical double resonance
optical-optical double resonance(OODR)
Gigabit passive optical networkPresent and Future of Broadband Optical Access Network
Integrated Optical Acoustic-Optical Tunable Filter
integrated optical acousto-optical tunable filter (IAOTF)
Optical active device and Optical transmission equ
optical correlator optical
optical divide ratio of optical distributors
optical divide ratio of optical tapping element
optical field at optical fiber end
optical switch controlled by optical light
Optical to optical efficiency
optical-to-optical efficiency
aid retain and aid draining
first-aid of the first aid
Retention Aid and Drainage Aid
(OCR) Optical Character Recognition Equipment(OCR)