Polarization bistability in tuned, external-grating diode lasers

Author

Pajarola, Stephan ; Guekos, Georg ; Syvridis, Dimitris

Author_Institution

Inst. of Quantum Electron., Swiss Federal Inst. of Technol., Zurich, Switzerland

Volume

7

Issue

7

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

703

Lastpage

705

Abstract

Spectral domains showing polarization-wavelength hysteresis regions up to 0.3 nm wide were observed when the emission frequency of a diode laser having a nearly polarization-independent confinement factor was tuned in a simple external cavity with grating. In these regions the laser emits in a stable single mode with either TE or TM polarization, depending on whether the region was entered from lower or higher wavelengths. We explain the observed phenomenon on the basis of nonlinear gain saturation between TE and TM polarization.<>

Keywords

laser tuning; light polarisation; optical bistability; optical saturation; semiconductor lasers; TE polarization; TM polarization; confinement factor; external cavity; external-grating diode lasers; frequency tuning; nonlinear gain saturation; polarization bistability; polarization-wavelength hysteresis; single mode; spectral domains; Diode lasers; Gratings; Hysteresis; Laser tuning; Optical feedback; Optical polarization; Optical signal processing; Optical tuning; Tellurium; Waveguide lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.393179

Filename

393179