US2006007968A1PendingUtilityA1

Long pulse laser

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Assignee: NIGHAN WILLIAM L JRPriority: Apr 10, 1996Filed: Jun 2, 2005Published: Jan 12, 2006
Est. expiryApr 10, 2016(expired)· nominal 20-yr term from priority
Inventors:William L. Nighan, Jr.Tracy W. Vatter
G11B 5/84H01S 3/094053H01S 3/1608H01S 3/09415H01S 3/117H01S 3/0815H01S 3/0805H01S 3/1673
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Claims

Abstract

An optically-pumped solid-state laser is disclosed and includes a vanadate-based laser crystal and is configured to produce long Q-switched pulses at high repetition rate with high stability.

Claims

exact text as granted — not AI-modified
1 . A laser, comprising: 
 an output coupler with a reflectivity of at least 90%, and an end mirror that define a resonator;    a vanadate-based laser crystal gain medium positioned in the resonator;    a Q-switch coupled to the resonator; and    a pump source that produces a pump beam incident on the gain medium, the resonator generating an output beam with pulses greater than about 35 nsec with a corresponding repetition rate greater than about 25 kHz, wherein the output beam has an RMS noise less than about 5%.    
     
     
         2 . The device of  claim 1  wherein the vanadate-based laser crystal comprises Nd:YVO 4 .  
     
     
         3 . The device of  claim 1  wherein the vanadate-based laser crystal comprises Nd:GdVO 4 .  
     
     
         4 . The device of  claim 1  wherein the vanadate-based laser crystal comprises GdYVO 4 .  
     
     
         5 . The device of  claim 1  wherein the vanadate-based laser crystal comprises Nd:LuVO 4 .

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