High-power single- and double-frequency, tunable mini-laser with nano-film selector for onboard applications

Igor Peshko; Vladimir Rubtsov; Jan Jabczynski; Krzysztof Kopczynski

doi:10.1117/12.663830

12 May 2006 High-power single- and double-frequency, tunable mini-laser with nano-film selector for onboard applications

Igor Peshko, Vladimir Rubtsov, Jan Jabczynski, Krzysztof Kopczynski

Author Affiliations +

Proceedings Volume 6243, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications II; 62430S (2006) https://doi.org/10.1117/12.663830
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

A new architecture of single-frequency high efficiency mini-solid-state lasers is proposed. The application of a metallic nano-film selector has been investigated theoretically and experimentally. It has been shown that a cobalt thinfilm selector with a thickness between 8 and 10 nm provides a single- frequency output within a power range of up to 0.6 W with a 1-mm thick Nd:YVO₄ gain crystal. At single-mode operation, it accumulated 85% of the multimode laser output. Slope efficiencies of single-frequency oscillation from 41% to 53% have been demonstrated for different crystals. The output coupler movement by piezoceramic transducer provided single-frequency operation, with slow smooth tuning, or chirping. The laser, with a cavity length less than 1", provided smooth tuning up to 10 GHz, frequency chirping up to 4 GHz with a repetition rate of about 0.5 kHz, and hop tuning over 150 GHz at a maximum pump power of 1.8 W. Double-frequency operation with a separation of 1.5 to 2.5 GHz was realized in a laser with a cavity length up to 100 mm. Physical and technical limitations caused by the wide-gain bandwidth, thermal effects, and mechanical vibrations of the cavity elements are discussed. The new specific regime of frequency self-stabilization provided with a thin-film metallic selector has been proposed. Slow, periodical self-modulation phenomena in the diode-pumped singlefrequency Nd:YVO₄ laser with a cobalt thin-film selector have been demonstrated. Pulses with duration of about l to 3s and periods of about 3 to 10 s have been observed.

Citation Download Citation

Igor Peshko, Vladimir Rubtsov, Jan Jabczynski, and Krzysztof Kopczynski "High-power single- and double-frequency, tunable mini-laser with nano-film selector for onboard applications", Proc. SPIE 6243, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications II, 62430S (12 May 2006); https://doi.org/10.1117/12.663830

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
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Thin films

Interferometers

Reflection

Modulation transfer functions

Crystals

Mirrors

Semiconductor lasers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years