Features of the angle-tuned phase-matched OPO with pump beam reflected

N. V. Kondratyuk; O. Manko; A. A. Shagov

doi:10.1117/12.560966

Abstract

The development of compact high efficiency optical parametric oscillators (OPO) which generate widely tunable coherent radiation with small divergence and high angular pointing stability is a currently a topical problem. In the past, many efforts have been made to reduce the spectral bandwidth and the divergence of the OPO output beam. The spatial and spectral properties of a 355nm pumped pulsed ns-BBO OPO were improved by using type II phase matching and pump beam back reflection. In this way the OPO bandwidth was reduced by more than a factor of 20 to less than 0.1nm, and the divergence of the OPO beam was reduced in the phase matching plane by a factor of 5 to 1mrad. We investigated the spectral properties of the type II BBO OPO and KTP OPO pumped at 532nm and pump beam reflected. It was found, that the OPO bandwidth was reduced by more than a factor of 5 to less than 0.3nm at 680nm and 0.7nm at 1064nm. We determined, that in collinear OPO with inclined nonlinear crystal in the forward direction the output signal beam deviates from the pump beam. After reflection at the OPO out-coupling mirror the signal and pump beams inside crystal are non-collinear. After passing through the crystal in backward direction and reflection at the OPO rear mirror the signal and pump beams inside crystal are again collinear.

Citation Download Citation

N. V. Kondratyuk, N. V. Kondratyuk, O. Manko, O. Manko, A. A. Shagov, A. A. Shagov, "Features of the angle-tuned phase-matched OPO with pump beam reflected", Proc. SPIE 5478, Laser Optics 2003: Solid State Lasers and Nonlinear Frequency Conversion, (7 April 2004); doi: 10.1117/12.560966; https://doi.org/10.1117/12.560966

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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: $14.40

Non-members: $18.00 ADD TO CART

Keywords/Phrases

Search In:

Publication Years