Dual-wavelength distributed feedback laser for the generation of terahertz radiation

Antti Laakso; Mihail Dumitrescu; Markus Pessa

doi:10.1117/12.839628

4 August 2009 Dual-wavelength distributed feedback laser for the generation of terahertz radiation

Antti Laakso, Mihail Dumitrescu, Markus Pessa

Proceedings Volume 7386, Photonics North 2009; 73862K (2009) https://doi.org/10.1117/12.839628
Event: Photonics North 2009, 2009, Quebec, Canada

Abstract

The use of terahertz radiation bears great potential for various applications. We propose a method for obtaining terahertz radiation based on frequency difference generation from two-longitudinal-mode emission of monolithic distributed feedback lasers with modulated gratings. The frequency separation of the two dominating longitudinal modes of the proposed device structure can cover a wide range and several structural and operation point parameters can be used for coarse- and fine-tuning. Moreover, the nearly perfect overlapping of the dominant modes' optical field transverse distributions is enabling high-efficiency terahertz generation. The paper presents design formulas, simulation results and discusses the influences of the fabrication inaccuracies on the target frequency separation.

Citation Download Citation

Antti Laakso, Mihail Dumitrescu, and Markus Pessa "Dual-wavelength distributed feedback laser for the generation of terahertz radiation", Proc. SPIE 7386, Photonics North 2009, 73862K (4 August 2009); https://doi.org/10.1117/12.839628

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