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Length controlled stabilized mode-lock nd:yag laser
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1977 |
| Description | A method and apparatus for stabilizing the amplitude and repetition rate of mode-locked Nd:YAG laser pulses by controlling the laser length through a feedback loop are described. The end mirror of the laser is mounted on a piezoelectric crystal which is dithered at a low frequency. A portion of fundamental 1.06 micrometer laser radiation is converted into its second harmonic frequency, and the average power of the second harmonic frequency is detected by an integrating detector. The amount of the power of the second harmonic frequency depends on the match between the optical length of the laser cavity and the mode-lock frequency. The length is controlled by a feedback loop which phase compares the output of the second harmonic detector to the piezoelectric crystal dither signal. |
| File Size | 571226 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19770018555 |
| Archival Resource Key | ark:/13960/t5cc5sr52 |
| Language | English |
| Publisher Date | 1977-05-24 |
| Access Restriction | Open |
| Subject Keyword | Lasers And Masers Harmonic Generations Laser Outputs Laser Mode Locking Yag Lasers Laser Cavities Product Development Feedback Control Piezoelectric Crystals Neodymium Lasers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
