There are some common applications of manual adjustable fiber delay lines：
Telecommunications
- Testing and calibration of optical networks.
- Time-division multiplexing (TDM) systems.
- Optical time-domain reflectometry (OTDR) measurements.
Fiber Optic Sensors
- Interferometric sensors for measuring strain, temperature, and pressure.
- Fiber Bragg grating (FBG) sensors.
Laser Systems
- Pulse shaping and timing control.
- Mode-locking and synchronization of lasers.
Optical Coherence Tomography (OCT)
- Depth resolution and imaging quality.
- Biomedical imaging and industrial inspection.
Optical Metrology
- Interferometry and distance measurements.
- Wavefront shaping and correction.
