A liquid lens switching-based motionless variable fiber-optic delay line
Citation
Khwaja, T. S., Reza, S. A., & Sheikh, M. (2018). A liquid lens switching-based motionless variable fiber-optic delay line. Optical Fiber Technology, 42, 29-33. doi: https://doi.org/10.1016/j.yofte.2018.02.010
Keywords
- Variable Fiber-Optic Delay Line (VFODL)
- Liquid lens
- Electronically Controlled Tunable Lenses (ECTLs)
- Switching
- Single Mode Fiber (SMF)
- Polarization-independent
- Motionless
- RF photonics
- Photonic signal processing
- Fiber optics
- Adaptive optics
- Fiber optic device
- Digital switching
- Optical delay Line
- Fourier optics
- Long delay
- Beam steering
- Interferometric measurement systems
- RF-Photonic tunable filters
- Fiber Collimator Array (FCA)
- GRIN Array
Brief
This paper presents a motionless variable fiber-optic delay line that utilizes electronically controlled tunable lenses to switch an optical or RF signal between single-mode fibers of varying lengths, thus achieving different delay times.
Summary
This paper proposes a novel, compact, and low-cost motionless variable fiber-optic delay line (VFODL) that uses electronically controlled tunable lenses to switch optical or RF signals between single-mode fibers of varying lengths, achieving different delay times in a polarization-independent manner. The experimental demonstration validated the functionality of the design. This type of VFODL is beneficial for applications like RF photonics and photonic signal processing requiring long and tunable delays.
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