Title :
External-cavity semiconductor laser with 1000 GHz continuous piezoelectric tuning range
Author :
Schremer, A.T. ; Tang, C.L.
Author_Institution :
Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA
Abstract :
A 1000-GHz continuous tuning range is achieved using a single piezoelectric transducer to orient a diffraction grating in an external-cavity semiconductor laser. The laser output power ripple versus wavelength is 15%, and the linewidth is less than 500 kHz. Large-amplitude piezoelectrically controlled wavelength modulation can be done at modulation frequencies on the order of 100 Hz. The maximum modulation frequency, continuous electrical tuning range, and linewidth are limited by the mechanical design of the external cavity. This device should have wide application in spectroscopy, metrology, and remote sensing.<>
Keywords :
diffraction gratings; laser cavity resonators; laser tuning; piezoelectric transducers; semiconductor junction lasers; spectral line breadth; 1000 GHz continuous piezoelectric tuning range; continuous electrical tuning range; diffraction grating; external-cavity semiconductor laser; laser output power ripple; linewidth; mechanical design; metrology; modulation frequencies; remote sensing; single piezoelectric transducer; spectroscopy; wavelength; wavelength modulation; Diffraction gratings; Frequency modulation; Laser tuning; Metrology; Piezoelectric transducers; Power generation; Power lasers; Remote sensing; Semiconductor lasers; Spectroscopy;
Journal_Title :
Photonics Technology Letters, IEEE
