| 摘要 |
This invention relates to an optically switched, fluid cooled (10), fibre coupled, diode (8) pumped solid state laser system which can be frequency stabilised (28), consisting of three sections, two of which are connected together for safety reasons whilst the third (3) can be detached from the other two (2), said system having the first section (1) in the form of a portable, fluid cooled head containing an optically switched laser rod (4), which is permanently connected to the second section which is in the form of a flexible umbilical cord (2) containing an optical fibre bundle which conveys the excitation light for said laser rod (4), cooling fluid tubes (11) to cool said laser rod (4) and, when frequency stabilised (28) operation is required, a single mode optical fibre (29) to convey the stabilised frequency from the remotely sited oscillator (3) to the said rod laser amplifier head(2). The umbilical cord (2) connects said head section to a remotely sited service module (3) which contains the diode arrays (8) for generating the excitation light that is conveyed to excite the laser rod via the fibre bundle, the cooling fluid unit, the switchable power supply to drive the diode arrays and the stabilised oscillator when the system is operated in the frequency stabilised mode. The invention has applications in the industrial, medical and defense fields. In the industrial field the applications of the invention include laser marking and laser scribing. In the medical field the applications include nerve fusion, laser surgery and laser therapies. In the defense fields the applications include laser range finding, target designation and communications both on land and underwater. |
