The table below shows a summary of lock solutions discussed in this series of application notes and of TOPTICA laser locking electronics that can be used to realize these locks. The first column lists the different types of locking schemes that are discussed in this series of application notes. The second column gives typical application examples for each locking scheme. The third column lists TOPTICA devices which are designed to generate an error signal for individual locking schemes while the fourth column suggests the corresponding TOPTICA PID controller.