| EFPI | Extrinsic Fabry-Perot Interferometer |
| FBG | Fibre Bragg Gratings |
| HF | HydroFluoric Acid |
| MM | Multi Mode |
| NI | National Instruments |
| OFPTS | Optical Fiber Pressure and Temperature Sensor |
| OSA | Optical Spectrum Analyzer |
| ROV | Remote Operated Vehicle |
| SM | Single Mode |
| UUV | Unmanned Underwater Vehicles |