Excel Precision 1001F Helium-Neon Laser (Gallery)
Like HP (now Agilent), Excel Precision also manufactures what is called a
"Two-Frequency HeNe Laser" for use in their interferometry based measurement
and calibration systems. There are several versions of these lasers, all
based on the same basic laser but with different packaging.
The 1001A and 1001F are in a similar small case and are physically and
electrically compatible with the HP-5517B/C/D except that the REF
frequency range is 1.5 to 3.0 MHz.
The Excel 1001F is a Zeeman-split two-frequency HeNe laser similar to those
manufactured by HP/Agilent but based on a totally different implementation.
Much more information on these lasers can be found in the chapter:
Commercial Stabilized HeNe Lasers
of Sam's Laser FAQ.
View 01 - Left front view.
View 02 - Front closeup view. Like the shutter wheel on the HP/Agilent
lasers, this selects the full beam, a narrow alignment beam, or no beam.
View 03 - Right back view.
View 04 - Back closeup view. The connector is physically and
electrically compatible with HP/Agilent interferometers.
View 05 - Left front interior view.
View 06 - Right back interior view.
View 07 - Left side interior view. This shows the control PCB with
its five (5) trimpots! :) The green connectors are from left to right:
Photodiode input, Tube heater, HeNe laser power supply, Power/Reference,
View 08 - Right side interior view. The shielded HeNe laser power
supply is at the lower right with the ballast resistor at the lower left.
The fat red (anode) and gray (cathode) wires are clearly visible.