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PZT tube actuator laser cavity length adjust ECDL, ECLD, Piezo tube w/mirror #2, US $2300 – Picture 0
PZT tube actuator laser cavity length adjust ECDL, ECLD, Piezo tube w/mirror #2, US $2300 – Picture 0

Pzt Tube Actuator Laser Cavity Length Adjust Ecdl, Ecld, Piezo Tube W/mirror #2

US $2300

  • Dublin, California, United States
  • Jun 6th
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Unusual find. These were from  Continuum lasers for adjusting the cavity length. These were designed to reflect light back into the cavity while transmitting a portion through the PZT tube to the output. The stainless steel mount is 1.075" dia. (not counting end flange). The closest I could find as far as dimensions were some of the PZT tubes available from Boston Piezo optics inc.. (They have a nice calculator on their site for figuring volts/microns to your dimensional configuration). The last pic shows the PZT assembly removed from one of these units. This unit consists of a 19/32" deep piezo tube element (more than double the length of the unit in my other auction) Other tube dimensions are:  O.D.= 11/16" or .6875", I.D.= .5875-.6075", wall thickness- .04-.05". (I'm guessing as I forgot to measure when I had it apart). Boston says Max. drive voltage should not exceed 1/2 of DC 24V/0.001" of wall thickness, and 1/2 of AC 12v/0.001" of wall thickness. With that in mind I figure about max 240-300VAC REBUILD DETAILS: Unit originally Had a 1" dia. partial mirror epoxied to a ceramic washer like plate epoxied to the piezo tube. I soaked this end in acetone to dissolve the epoxy on the mirror. The mirror would not detach but the ceramic plate did. I replaced that assembly with a 1" to 1/2" mirror adapter mount which I epoxied to the tube with Thermal epoxy. Now you can put any 1/2" mirror or splitter you want on there. Also had to solder on some wire extensions with high heat wire and epoxy the whole thing. I have pre-tinned the wires. Comes with a brand new CVI  EAV-PM-0512-C mirror (enhanced aluminum 1/2" mirror) for high R visible. that is the better mirror of the two shown in pics.   See my other auctions for another version. Thanks for looking

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