CW Injection-locked Single Frequency Ti:Sapphire Laser
碩士 === 國立清華大學 === 物理學系 === 92 === A cw Ti:Sapphire laser wave injected with a single frequency diode laser is demonstrated. The injection-locked Ti:Sapphire laser has an advantage of a low threshold than conventional single-frequency Ti:Sapphire laser, because it eliminates the necessity of intracav...
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| Other Authors: | |
| Format: | Others |
| Language: | en_US |
| Published: |
2004
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| Online Access: | http://ndltd.ncl.edu.tw/handle/28541767624186551733 |
| Summary: | 碩士 === 國立清華大學 === 物理學系 === 92 === A cw Ti:Sapphire laser wave injected with a single frequency diode laser is demonstrated.
The injection-locked Ti:Sapphire laser has an advantage of a low threshold
than conventional single-frequency Ti:Sapphire laser, because it eliminates the necessity
of intracavity linewidth narrowing components. In comparison with MOPA, this
method can provide higher intensity and better spatial mode quality.
Injection-locking a high power laser with a low power diode laser reproduces the
diode laser at high power with good fidelity in frequency. The frequency shift and
broadening of the Ti:Sapphire laser is measured using the method of beat note with
the master laser. The linewidth is estimated as less than 5 MHz, and no shift is
observed. The wavelength tuning range is determined by the tuning range of the
laser diode used to inject the Ti:Sapphire laser.
Such a system can be a powerful tool for laser spectroscopy at a frequency region,
where the high power single frequency diode laser is not available.
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