Invention Grant
US5943351A Intra-cavity and inter-cavity harmonics generation in high-power lasers
失效
大功率激光器中腔内和腔间谐波的产生
- Patent Title: Intra-cavity and inter-cavity harmonics generation in high-power lasers
- Patent Title (中): 大功率激光器中腔内和腔间谐波的产生
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Application No.: US17342Application Date: 1998-02-02
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Publication No.: US5943351APublication Date: 1999-08-24
- Inventor: Fuzheng Zhou , Qiang Fu , Michael Maikowski
- Applicant: Fuzheng Zhou , Qiang Fu , Michael Maikowski
- Applicant Address: NY Hauppauge
- Assignee: Excel/Quantronix, Inc.
- Current Assignee: Excel/Quantronix, Inc.
- Current Assignee Address: NY Hauppauge
- Main IPC: G02F1/37
- IPC: G02F1/37 ; G02F1/35 ; H01S3/109 ; H01S3/10
Abstract:
Intra-cavity and/or inter-cavity sub-resonators with dielectric coated mirrors have anti-reflection and high-reflection coatings to attain high efficiency third and higher order harmonics generation of laser radiation. Main-resonators and sub-resonators enhance the fundamental and harmonic oscillations, respectively, which result in high conversion efficiency of third harmonics and higher. Such improved lasing efficiency may be implemented in high power lasers for improved power performance to attain over 8 W of UV output power with a high repetition rate. The use of intra-cavity THG techniques provide high efficiency by using existing high intensities of the input fundamental frequencies available in the intra-cavity region of the laser to avoid damage to components of the laser, such as the laser crystal. The THG utilizes a double-pass and/or multi-pass arrangement, which results in about a 60% increase in output power compared to a single-pass configuration. Also, blocking of UV energy generated in a return pass is performed to eliminate damage by the UV to the components in the main cavity.
Public/Granted literature
- USD387947S Jug Public/Granted day:1997-12-23
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