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Updated: Feb 7, 2026
08:38
Electrospray Deposition of Uniform Thickness Ge23Sb7S70 and As40S60 Chalcogenide Glass Films
Published on: August 19, 2016
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All-fiber frequency-resolved optical gating pulse characterization from chalcogenide glass.
Optics Letters
|July 14, 2018
Summary
This study introduces the first all-fiber frequency-resolved optical gating device using nonlinear chalcogenide glass. It achieves high-sensitivity characterization of 2 µm wavelength pulses, including their amplitude and phase.
Area of Science:
- Nonlinear Optics
- Optical Metrology
- Materials Science
Background:
- Characterizing ultrashort optical pulses is crucial for various scientific fields.
- Existing methods for pulse characterization can be complex or limited in wavelength range.
- Chalcogenide glasses offer unique nonlinear optical properties suitable for novel photonic devices.
Purpose of the Study:
- To develop and demonstrate the first all-fiber frequency-resolved optical gating (FROG) device.
- To utilize nonlinear processing in chalcogenide glass for pulse characterization.
- To achieve high-sensitivity measurement of picosecond pulses in the 2 µm wavelength band.
Main Methods:
- Fabrication of an 11 cm long chalcogenide glass microwire.
- Exploiting strong four-wave mixing (FWM) efficiency within the microwire.
- Implementing an all-fiber setup for frequency-resolved optical gating measurements.
Main Results:
- Demonstrated the first all-fiber FROG device based on chalcogenide glass.
- Achieved high sensitivity (0.16 µW²) for pulse characterization.
- Successfully characterized both chirped and unchirped picosecond pulses in the 2 µm band.
Conclusions:
- Chalcogenide glass microwires are effective for nonlinear optical processing in fiberized systems.
- The developed all-fiber FROG device offers a sensitive and practical solution for 2 µm pulse characterization.
- This technology has potential applications in fields requiring precise optical pulse analysis.
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