The everyday lab task of tweaking mirror, lens or crystal adjusters a little at a time while watching output power, fiber-coupled power or a harmonic signal, and stopping at the maximum. Done carefully, one axis at a time, it recovers drift in coupling, cavity alignment or phase matching. A system that needs peaking up every morning has a thermal or mechanical stability problem.
Coupling's down to 60 percent, peak up the fiber launch on the two mirrors before you blame the fiber.
Also heard as
- peak
- tweak up
Related terms
Walk the beam
To align a beam onto a path using two steering mirrors adjusted in turn against two targets or irises.
Kinematic mount
An adjustable optic holder that uses three-point contact and fine screws to set tip and tilt repeatably.
Lase
To produce laser light, as in the cavity is lasing or it won't lase below 2 amps.
Doubler
Lab slang for the frequency-doubling crystal or module that turns an infrared laser into its second harmonic.