Oscillation wavelength shift characteristics of a semiconductor laser in a magnetic field -Observation using a beat note-

Abstract

Since the development of the first semiconductor lasers, we know that the oscillation wavelength of a semiconductor laser depends on injection current, laser temperature and magnetic field. Among these factors, injection current and laser temperature are the principal means by which to control the wavelength of laser diodes, in many practical applications. The wavelength shift of laser diodes subjected to strong magnetic fields in low temperature was reported from a physical point of view in the early 60’s[1]. Even after such work was further progressed, little time was spent actually testing semiconductor lasers in a magnetic field except for the spin-flip Raman[2] and quantum well[3] lasers.