研究目的
Investigating the performance and application of an ultra-stable 2.9 μm guided-wave chip laser in nano-spectroscopy.
研究成果
The study demonstrates the improved continuous-wave performance of a 2.9 μm chip laser architecture with the addition of Pr codopant, showing low power rms fluctuations and high beam quality. This sets a foundation for further development toward mode-locking, Q-switching, and single-frequency operation. The laser's application in nanospectroscopy is highlighted by high-resolution imaging of corroded copper surfaces.
研究不足
The study is limited by the specific configurations and materials used, such as the Ho, Pr codoped ZBLAN glass and the waveguide design, which may not be universally applicable. Potential areas for optimization include further reducing power drift and expanding the tuning range.
1：Experimental Design and Method Selection:
The study involves the design and testing of a configurable guided-wave planar glass-chip laser, utilizing an ultrafast laser inscribed waveguide for gain volume and pump mode overlap.
2：Sample Selection and Data Sources:
The laser is tested in various cavity configurations to evaluate its performance metrics such as power stability, beam quality, and tuning range.
3：List of Experimental Equipment and Materials:
Includes Ho, Pr codoped ZBLAN glass chips, polarization-combined single-mode fiber-coupled diode lasers, and a scattering-scanning near-field optical microscope (neaSNOM).
4：Experimental Procedures and Operational Workflow:
The laser's performance is assessed in contiguous and extended cavity configurations, including measurements of slope efficiency, power stability, and beam quality.
5：Data Analysis Methods:
Data on laser performance is collected and analyzed to determine stability, efficiency, and application suitability.
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