ABBREVIATIONS IN LASER ENGINEERING - A

2DEG- two-dimensional electron gas
2PA   - two photon absorption
III-V -Group III, group V of periodic table
3HG - third harmonic generation
AEL - accessible emission limit
AFRRG - Active Fiber Ring Resonator Gyroscope
AM - amplitude modulation
AMVSB - Amplitude Modulation—Vestigal Side Band
ANSI - American National Standards Institute
AO - acousto-optic
AON - All Optical Networks
APD - avalanche photodiode
APDs - avalanche photodiodes
APM - additive pulse mode locking
AR - anti reflection
ARFG - Active Reentrant FiberGyroscope
ASE - amplified spontaneous emission
AWG - arrayed waveguide grating