The Mode Field Adapter (MFA) independently developed by STR Laser connects two fibers of different Mode Field Diameters (MFD) and Number Hole Diameters (NA), which can maximize the throughput of fundamental mode signals at the fusion point. MFAs can find their applications in fiber lasers, fiber amplifiers, and other scientific research fields.

The signal combiner (SPC) independently developed by STR Laser combines the power of multiple lasers to obtain higher output power. They can find their applications in high-power fiber lasers and other scientific research fields.

The Multi-mode Pump Combiner (MPC) independently developed by STR Laser ensures no/low loss of the signal light transmitted in signal fibers and stable and reliable performance. MPCs can find their applications in fiber lasers, fiber amplifiers, and other scientific research fields.

The Quartz Block Head（QBH）independently developed by STR Laser reduces the energy density of the laser outlet and prevents equipment burning. In addition, its standard connector can be connected with multiple models of cutting heads for metal cutting, welding, drilling, and rust removal.

The cladding power stripper (CPS) independently developed by STR Laser is used to remove residual cladding light in fiber lasers, namely residual pumping light and residual signal light, without affecting fiber core transmission. It is applied in fiber lasers, fiber amplifiers, and other scientific research fields.