Title :
Magnetically programmable bistable laser diode with ferromagnetic layer
Author :
Zaets, Wadim ; Ando, Koji
Author_Institution :
Electrotech. Lab., Tsukuba, Japan
fDate :
3/1/2001 12:00:00 AM
Abstract :
A new design of bistable laser diode, which consists of a gain section, absorption section, and nonreciprocal section, is proposed. The nonreciprocal section is made of a semiconductor optical amplifier covered by a ferromagnetic layer. The nonreciprocity of magneto-optical effect significantly modifies a photon density distribution in the laser cavity and enlarges a width of hysteresis loop of bistable laser diode. The bistability can be switched on or off by reversing magnetization of the ferromagnetic layer.
Keywords :
ferromagnetism; magnetic hysteresis; magnetic thin films; magneto-optical devices; optical bistability; semiconductor lasers; absorption section; bistable laser diode; ferromagnetic layer; gain section; hysteresis loop; laser cavity; magnetically programmable bistable laser diode; magnetization reversal; magneto-optical effect; nonreciprocal section; photon density distribution; semiconductor optical amplifier; Absorption; Diode lasers; Magnetic hysteresis; Magnetic semiconductors; Magnetic switching; Magnetization; Magnetooptic effects; Optical design; Semiconductor lasers; Semiconductor optical amplifiers;
Journal_Title :
Photonics Technology Letters, IEEE
