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

bubble cap absorption column; bubble cap absorption tower

bubble cap bubbling cap

bubbling cap bubble cap

pile cap beam-less raft with post cap

(OCR) Optical Character Recognition Equipment(OCR)