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
Clearing Rules [SEHK Options Clearing House Limited]
(OCR) Optical Character Recognition Equipment(OCR)
(optical) emission spectrograph
(OTDR) Optical Time-Domain Reflectometers(OTDR)