AC	Alternating current
BOX	Burried oxide
BP	Black phosphorus
BTO	Barium tritanate
CMOS	Complementary metal–oxide–semiconductor
DAC	Digital to analogue converter
DC	Direct current
DSP	Digital signal processing
EOM	Electro-optical modulator
ER	Extinction ratio
ERM	Electro-refraction modulator
FCA	Free carrier absorption
GOI	Germanium on insulator
Ge-on-SOI	Germanium on silicon on insulator
HC-PBGF	Hollow core photonic bandgap fibre
IL	Insertion loss
IMDD	Intensity-modulation, direct detection
LWIR	Long wave infrared
mid-IR	Mid-infrared
MIM	Michelson interferometer modulator
MOSCAP	Metal-oxide-semiconductor capacitor
NRZ	Non return to zero
MBE	Molecular beam epitaxy
MRM	Microring modulator
MZM	Mach-Zehnder modulator
near-IR	Near-infrared
OOK	On-off keying
PZT	Lead zirconate tritanate
PAM	Pulse amplitude modulation
QW	Quantum well
SISCAP	Silicon-insulator-silicon capacitor
SMF	Single mode fibre
SOI	Silicon on insulator
SWIR	Short wave infrared
TDFA	Thulium-doped fibre amplifier
TO	Thermo optic
TPA	Two photon absorption
VOA	Variable optical attenuator
WDM	Wavelength division multiplexing