Title :
Low voltage wavelength tuning of an external cavity diode laser using a nematic liquid crystal-containing birefringent filter
Author :
Andrews, John R.
Author_Institution :
Xerox Webster Res. Center, NY, USA
fDate :
5/1/1990 12:00:00 AM
Abstract :
A tunable diode laser incorporating a two-stage birefringent filter in an external cavity is discussed. Tuning of the laser wavelength is accomplished with a nematic liquid-crystal cell with electrically controlled birefringence in each stage of the filter. The laser has a scan range of 26.7 AA for a drive voltage to each of the liquid-crystal cells of <1.7 V RMS.<>
Keywords :
birefringence; laser cavity resonators; laser tuning; nematic liquid crystals; optical filters; semiconductor junction lasers; 1.7 V; 27.7 AA; birefringent filter; drive voltage; electrically controlled birefringence; external cavity diode laser; laser wavelength; nematic liquid-crystal cell; scan range; tunable diode laser; two-stage birefringent filter; wavelength tuning; Band pass filters; Birefringence; Dielectrics; Diode lasers; Laser tuning; Liquid crystals; Low voltage; Optical control; Tunable circuits and devices; Tuners;
Journal_Title :
Photonics Technology Letters, IEEE
