3
OADM
optical add-drop module
4
OAET
Office of Aeronautics, Exploration and Technology
5
OALM
optical address light modulator
6
OAMP
optical-analog matrix processing
7
OAR
off-axis rejection; open area ratio
9
OCCR
optical Chinese character recognition
10
OCDR
optical coherence domain reflectometer
11
OCDU
optics coupling display unit
12
OCM
optical countermeasure
13
OCO
optically coupled oscillator
14
OCR
optical character recognition; optical character reader
15
OCT
optical coherence tomography
16
OCV
optical character verification
17
OCWR
optical continuous wave reflectometer
18
OD
optical density; outside diameter
19
ODM
optical disc memory
20
ODN
optical distribution network
21
ODP
optical data processing
22
ODS
optical data storage
23
OEIC
optoelectronic integrated circuit
24
OEM
original equipment manufacturer
25
OES
optical emission spectroscopy
26
OFD
open-face detector
27
OFDR
optical frequency domain reflectometer
28
OFT
optical fiber thermometry
30
OIDA
Optoelectronics Industry Development Association (USA)
31
OIG
optically isolated gate
32
OISL
optical intersatellite link
33
OITDA
Optoelectronic Industry & Technology Development Association (Japan)
34
OJRL
Optoelectronics Joint Research Laboratory (Japan)
35
OLBR
operational laser beam recorder
36
OLCR
online character recognition
37
OLED
organic light-emitting diode
38
OLT
optical lay-up template; optical line terminator
39
OLTS
optical loss test set