Pulsed light generation apparatus and pulsed light generation method
The pulsed light generation apparatus addresses multi-solitonization and ASE by broadening the spectrum and using separate amplification units for each wavelength range, achieving reliable amplification and expanded tuning.
JP2026108977APending Publication Date: 2026-07-01HAMAMATSU PHOTONICS KK +1
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- HAMAMATSU PHOTONICS KK
- Filing Date
- 2024-12-19
- Publication Date
- 2026-07-01
AI Technical Summary
Technical Problem
Existing pulsed light generation devices face challenges in suppressing multi-solitonization and efficiently amplifying pulsed light without generating amplified spontaneous emission (ASE) due to wavelength dependence and intensity variations.
Method used
A pulsed light generation apparatus that includes a broadbanding unit to broaden the spectrum, a modulation unit for soliton self-frequency shift, a branching unit, and separate amplification units for each wavelength range, allowing controlled amplification and suppression of ASE.
Benefits of technology
The apparatus effectively suppresses multi-solitonization and ASE while reliably amplifying pulsed light, expanding the wavelength tuning range and ensuring efficient energy use.
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Smart Images
Figure 2026108977000001_ABST
Abstract
By utilizing soliton self-frequency shift modulation, the formation of multiple pulsed light beams is suppressed, while the occurrence of ASE (Autonomous Emission Reduction) is suppressed, and the modulated pulsed light beam is reliably amplified. [Solution] The pulsed light generation device 100 comprises an oscillator 1 that oscillates pulsed light L, a fiber amplifier 2 located downstream of the oscillator 1 in the optical path of the pulsed light L, a soliton shift fiber 5 located downstream of the fiber amplifier 2 in the optical path of the pulsed light L, a branching section 8 located downstream of the fiber amplifier 2 in the optical path of the pulsed light L, and a short-wavelength fiber amplifier 11 located downstream of the soliton shift fiber 5 and the branching section 8 in the optical path of the pulsed light L.
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