Title :
Optical generation of millimeter-waves using a dual-polarization emission external cavity diode laser
Author :
Pajarola, S. ; Guekos, G. ; Mork, J.
Author_Institution :
Inst. for Quantum Electron., Swiss Federal Inst. of Technol., Zurich, Switzerland
Abstract :
We report on the generation of millimeter-waves by heterodyne mixing of two wavelength tunable laser modes emitted simultaneously from a single diode laser operating in a two-arm external cavity. The modes are in the 1.55 μm range, one of them vibrates in TE and the other in TM polarization. We have measured beat-frequencies from 1 to 22 GHz, where the upper frequency is limited by the photodetector set-up. The mode wavelength separation can be tuned from approximately zero to 10 nm corresponding to beat-frequencies up to 1330 GHz. The results are qualitatively supported by theoretical analysis.
Keywords :
demodulation; laser cavity resonators; laser modes; laser tuning; light polarisation; millimetre wave generation; optical communication equipment; photodetectors; semiconductor lasers; 1 to 22 GHz; 1.55 mum; 1330 GHz; TE polarization; TM polarization; beat-frequency measurement; dual-polarization emission external cavity diode laser; heterodyne mixing; millimeter-wave generation; mode wavelength separation tuning; optical generation; photodetector set-up; single diode laser; two-arm external cavity; wavelength tunable laser modes; Diode lasers; Frequency measurement; Laser modes; Millimeter wave measurements; Optical mixing; Polarization; Stimulated emission; Tellurium; Tunable circuits and devices; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
