Generation of tunable visible light in periodically-poled nonlinear crystal waveguides

Ksenia A. Fedorova

doi:10.1117/12.2514821

4 March 2019 Generation of tunable visible light in periodically-poled nonlinear crystal waveguides

Ksenia A. Fedorova

Proceedings Volume 10902, Nonlinear Frequency Generation and Conversion: Materials and Devices XVIII; 109020F (2019) https://doi.org/10.1117/12.2514821
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

Compact, widely-tunable, continuous-wave (CW) and ultrashort-pulse laser sources in the visible spectral region are extremely valuable in a wide range of cutting-edge applications such as photomedicine, biophotonics and microscopy. The most promising approach to develop a compact, efficient and widely-tunable visible laser source is second harmonic generation (SHG) in a periodically poled nonlinear crystal containing a waveguide, which not only allows highly efficient frequency conversion even at low pump power levels but also offers an order-of-magnitude increase of wavelength range for efficient SHG by the utilization of multi-mode matching technique. In this respect, semiconductor lasers with their small size, high efficiency, reliability, low-cost and wide spectral range coverage are very promising for the realization of tunable visible laser sources. InAs/GaAs quantum-dot (QD) external-cavity diode lasers (ECDLs), owing to the unique features of QDs, are of special interest for that matter. The use of multi-mode matching technique and SHG in periodically-poled potassium titanyl phosphate (PPKTP) waveguides pumped by tunable QD-ECDLs led to the realization of compact, widely-tunable, visible, CW (567.7 - 629.1 nm and 574 – 647 nm) and picosecond-pulse (600 – 627 nm) laser sources. Furthermore, the ability of QD-ECDLs to generate two tunable longitudinal modes simultaneously allowed the demonstration of dual-wavelength SHG (505.4– 537.7nm wavelength region) from diode-pumped PPKTP waveguides. In addition, compact CW white-light and multicolor laser sources were demonstrated by the use of two ECDLs and a PPKTP waveguide. The demonstrated laser sources represent an important step towards the realization of a compact, room-temperature, tunable laser source in the visible spectral region.

Citation Download Citation

Ksenia A. Fedorova "Generation of tunable visible light in periodically-poled nonlinear crystal waveguides", Proc. SPIE 10902, Nonlinear Frequency Generation and Conversion: Materials and Devices XVIII, 109020F (4 March 2019); https://doi.org/10.1117/12.2514821

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Waveguides

Laser sources

Visible radiation

Second-harmonic generation

Continuous wave operation

Nonlinear crystals

Semiconductor lasers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years