Abstract: Some embodiments may include an optical assembly usable to process light output from a laser source. The apparatus may include a housing to receive a distal end of an optical fiber that outputs the laser light; one or more actively cooled or passively cooled beam traps contained within the housing or coupled to the housing; and one or more optical apertures located inside the housing, at least one of the optical apertures to define a numerical aperture (NA) of a first portion of the laser light based on a radial dimension of the at least one optical aperture, the at least one optical aperture arranged to pass the first portion of the light and redirect a second different portion of the laser light to the one or more actively cooled or passively cooled beam traps. Other embodiments may be disclosed and/or claimed.

Abstract: Some embodiments may include a fiber laser having an input end to receive source light from a light source and an output end including: a feeding optic fiber including a cladding layer and an interior surrounded by the cladding layer, wherein the interior emits a beam at an end of the feeding optic and the cladding layer receives process light at the end of the feeding optic, the process light generated by processing of a workpiece by the beam; and a notch or other discontinuity in an outer surface of a side of the cladding layer, the surface discontinuity to release a portion of the process light, the apparatus further comprising: a collection optic fiber having a first end to capture a sample of the released process light and a second end to provide the captured sample to a sensor. Other embodiments may be disclosed and/or claimed.

Abstract: A mounting surface defines a branching channel, the branching channel having a main channel and one or more sub-channels branching off the main channel. An optic fiber is affixed to the mounting surface, the optic fiber including a cladding layer and an interior surrounded by the cladding layer, wherein part of the optic fiber is suspended over the main channel. A clad light stripper includes one or more discontinuities in an outer surface of the cladding layer of a suspended section of the optic fiber, the one or more outer surface discontinuities to release a portion of the process light. The one or more subchannels include a first sub-channel having an ingress located to capture released light from an individual one of the one or more discontinuities and trap at least a portion thereof.

Abstract: Some embodiments may include a fiber laser system comprising: a pump combiner; a plurality of fiber laser pump modules arranged for pumping a pulsed output from the fiber laser system; and a pump controller to operate in a first operation mode to pump a pulsed output from the fiber laser system and to operate in a second different operation mode to pump a continuous wave (CW) output from the fiber laser system; the pump controller to, in the first operation mode, simultaneously activate individual fiber laser pump modules of the plurality of fiber laser pump modules; and the pump controller to, in the second operation mode, sequentially activate the individual fiber laser pump modules of the plurality of fiber laser pump modules. Other embodiments may be disclosed and/or claimed.

Abstract: A lead frame assembly that includes a lead frame defining a cavity, a lead frame contact disposed within the cavity and a sensor disposed on the lead frame contact.