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Published on: February 4, 2018
Continuously tunable 22 ns delay for wideband optical signals using a parametric delay-dispersion tuner
1Photonics Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568, Japan. t.kurosu@aist.go.jp
Optics Letters
|May 5, 2009
Summary
We developed a novel parametric delay-dispersion tuner (PDDT) for precise control of optical signals. This device enables simultaneous and independent tuning of delay and dispersion for wideband optical signals.
Area of Science:
- Optoelectronics
- Photonics
- Optical Communications
Background:
- Accurate control of optical signal delay and dispersion is crucial for high-speed communication systems.
- Existing methods often lack simultaneous and independent tunability for both parameters.
Purpose of the Study:
- To introduce and experimentally validate a Parametric Delay-Dispersion Tuner (PDDT).
- To demonstrate the device's capability for simultaneous and independent tuning of delay and dispersion in wideband optical signals.
Main Methods:
- Conceptualization of the Parametric Delay-Dispersion Tuner (PDDT).
- Experimental setup for testing the PDDT with optical signals.
- Measurement of delay, dispersion, bandwidth, and transmission performance.
Main Results:
- Achieved a tunable delay of 22 ns for 2.6 ps optical signals without distortion.
- Demonstrated error-free transmission at 43 gigabits per second.
- Confirmed a bandwidth of ~0.9 THz and a delay-bandwidth product of ~20,000.
Conclusions:
- The PDDT offers continuous, simultaneous, and independent tuning of delay and dispersion.
- The device exhibits excellent stability and reproducibility, suitable for advanced optical systems.
- The PDDT advances capabilities in optical signal processing and high-speed communications.
