Title :
Multiwavelength grating reflectors for widely tunable laser
Author :
Talneau, A. ; Ougier, C. ; Slempkes, S.
Author_Institution :
Lab. de Bagneux, CNET, Bagneux, France
fDate :
4/1/1996 12:00:00 AM
Abstract :
We propose a new reflector approach in order to get the reflectivity comb needed in widely tunable lasers. This reflector is realized by holographic exposure of superimposed multiple Bragg gratings. It provides efficient reflectivity with short guide sections (150 μm) leading to improved static laser characteristics. This reflector has been successfully included in 20-nm tuning DBR lasers.
Keywords :
distributed Bragg reflector lasers; holographic gratings; laser tuning; multiplexing equipment; optical communication equipment; optical waveguides; reflectivity; ridge waveguides; semiconductor lasers; waveguide lasers; wavelength division multiplexing; 150 mum; efficient reflectivity; holographic exposure; holographic gratings; improved static laser characteristics; multiwavelength grating reflectors; reflectivity comb; reflector approach; short guide sections; superimposed multiple Bragg gratings; tuning DBR lasers; widely tunable laser; Bragg gratings; Diffraction gratings; Distributed Bragg reflectors; Etching; Frequency; Laser tuning; Reflectivity; Resists; Sampling methods; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
