WAVELENGTH STABILIZATION AND LINEWIDTH NARROWING FOR SINGLE MODE AND MULTIMODE LASER DIODES

摘要

System for wavelength stabilization in a multimode (MM) laser diode (LD), including at least one MM LD, a respective at least one MM 2×2 beam splitter for each MM LD, an isolator and at least one LD, the LD being respectively coupled with the isolator, the MM LD for generating high power MM laser light, the isolator for enabling laser light to pass through in only one direction and the LD for generating low power laser light, each respective MM 2×2 beam splitter including four ports, each respective MM 2×2 beam splitter having a highly asymmetric splitting ratio and for splitting the generated high power MM laser light and the generated low power laser light, each MM LD being respectively coupled with the fourth port of each respective MM 2×2 beam splitter and a wavelength of the high power laser light locking onto a wavelength of the low power laser light.