Integrated optical DBR- and DFB-lasers in Er:LiNbO<sub>3</sub> with photorefractive gratings

Bijoy Krishna Das; Christian Becker; Thomas Oesselke; Raimund Ricken; Viktor Quiring; Hubertus Suche; Wolfgang Sohler

doi:10.1117/12.468300

3 April 2003 Integrated optical DBR- and DFB-lasers in Er:LiNbO₃ with photorefractive gratings

Bijoy Krishna Das, Christian Becker, Thomas Oesselke, Raimund Ricken, Viktor Quiring, Hubertus Suche, Wolfgang Sohler

Proceedings Volume 4944, Integrated Optical Devices: Fabrication and Testing; (2003) https://doi.org/10.1117/12.468300
Event: Photonics Fabrication Europe, 2002, Bruges, Belgium

Abstract

A family of narrow linewidth integrated optical distributed Bragg reflector- (DBR-), distributed feedback- (DFB-), and DBR-/DFB-coupled cavity lasers with Er-doped LiNbO₃ single-mode waveguide is reviewed. They have one or two photorefractive gratings in Fe-doped waveguide sections. Two types of DBR-lasers have been developed. The first type has a cavity consisting of one Bragg-grating in a Ti:Fe:LiNbO₃ waveguide, a gain section with Ti:Er:LiNbO₃ waveguide, and a multi-layer dielectric mirror deposited on one polished end face. The second DBR-cavity consists of two gratings in Ti:Fe:LiNbO₃ on both sides of the Er-doped waveguide. Their power characteristics and spectral properties were investigated. Single-frequency operation could be achieved in the latter case at various wavelengths in the Er-band (1530nm <λ< 1575nm) with up to 1.12mW output power. A DFB-laser with two lowest-order modes has been demonstrated with a photorefractive grating in a Ti:Fe:Er:LiNbO₃ waveguide; it is combined with an integrated optical amplifier on the same substrate. Moreover, an attractive DBR/DFB coupled cavity laser has been developed and investigated. Its cavity consists of a photorefractive Bragg grating in the Ti:Fe:Er:LiNbO₃ waveguide section close to one end face of the sample, a Ti:Er:LiNbO₃ gain section and a broadband dielectric multi-layer mirror of high reflectivity on the other end face.

Citation Download Citation

Bijoy Krishna Das, Christian Becker, Thomas Oesselke, Raimund Ricken, Viktor Quiring, Hubertus Suche, and Wolfgang Sohler "Integrated optical DBR- and DFB-lasers in Er:LiNbO₃ with photorefractive gratings", Proc. SPIE 4944, Integrated Optical Devices: Fabrication and Testing, (3 April 2003); https://doi.org/10.1117/12.468300

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available