ADC	Analog-to-digital converter
AI	Artificial intelligence
BBS	Broadband light source
CSU	Control & storage unit
DAC	Digital-to-analog converter
FBG	Fiber Bragg grating
GPIO	General-purpose input/output
HCG	High contrast grating
MCU	Microcontroller unit
ML	Machine learning
OPAMP	Operational amplifier
OSA	Optical spectrum analyzer
PD	Photodetector
SFBG	Sapphire fiber Bragg grating
SLED	Superluminescent diode
TEC	Thermoelectric cooler
TMM	Transfer matrix method
UART	Universal asynchronous receiver-transmitter
USB	Universal serial bus
VCSEL	Vertical cavity surface emitting laser