Realisation of a widely tuneable sampled grating DBR laser emitting around 970 nm. Issue 11 (11th May 2017)

• Record Type: Journal Article
• Authors: Brox, O.; Tawfieq, M.; Della Casa, P.; Ressel, P.; Sumpf, B.; Erbert, G.; Knigge, A.; Weyers, M.; Wenzel, H.
• Is Part Of: Electronics letters. Volume 53:Issue 11(2017)
• Page Start: 744
• Page End: 746
• Publication Date: 2017-05-11
• Subjects: distributed Bragg reflector lasers -- semiconductor lasers -- Bragg gratings; distributed Bragg reflector -- DBR laser -- tuneable diode laser emitting -- grating Bragg reflectors -- wavelength selective mirrors -- wavelength tuning -- Vernier effect -- thermal heaters -- quasicontinuous tuning -- optical side mode suppression ratio -- current 180 mA; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2017.0521
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : Design and fabrication of a monolithic, single aperture widely tuneable diode laser emitting around 970 nm is presented. Overgrown sampled grating Bragg reflectors are applied to setup wavelength selective mirrors. Wavelength tuning is achieved via the Vernier effect with thermal heaters placed on top of the sampled gratings. The 20 nm quasi‐continuous tuning around 970 nm with an optical side mode suppression ratio in excess of 40 dB is demonstrated and an optical output power of more than 30 mW at a pump current of 180 mA is presented.