A Caltech Library Service

Coherence properties of a broadband femtosecond mid-IR optical parametric oscillator operating at degeneracy

Marandi, Alireza and Leindecker, Nick C. and Pervak, Vladimir and Byer, Robert L. and Vodopyanov, Konstantin L. (2012) Coherence properties of a broadband femtosecond mid-IR optical parametric oscillator operating at degeneracy. Optics Express, 20 (7). pp. 7255-7262. ISSN 1094-4087. doi:10.1364/OE.20.007255.

[img] PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


We study coherence properties of a χ^(2) optical parametric oscillator (OPO), which produces 2/3-octave-wide spectrum centered at the subharmonic (3120 nm) of the femtosecond pump laser. Our method consists of interfering the outputs of two identical, but independent OPOs pumped by the same laser. We demonstrate that the two OPOs show stable spatial and temporal interference and are mutually locked in frequency and in phase. By observing a collective heterodyne beat signal between the two OPOs we show that one can deterministically choose, by cavity length adjustment, between the two frequency states corresponding to the two sets of modes shifted with respect to each other by half of the laser pulse repetition rate. Moreover, we observe that the existence of two opposite phase states, a known common feature of a parametrically driven n = 2 subharmonic oscillator, reveals itself in our experiment as a common phase, 0 or π, being established through the whole set of some 300 thousand longitudinal modes.

Item Type:Article
Related URLs:
URLURL TypeDescription
Marandi, Alireza0000-0002-0470-0050
Byer, Robert L.0000-0003-1331-0318
Additional Information:© 2012 Optical Society of America. Received 2 Feb 2012; revised 5 Mar 2012; accepted 5 Mar 2012; published 14 Mar 2012. We greatly acknowledge the support by NASA, Office of Naval Research, Air Force Office of Scientific Research, Agilent, and Stanford Medical School. V. Pervak thanks for support the German Research Foundation Cluster of Excellence “Munich Centre for Advanced Photonics”.
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Agilent TechnologiesUNSPECIFIED
Stanford Medical SchoolUNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Issue or Number:7
Classification Code:OCIS codes: (190.4975) Parametric processes; (190.4410) Nonlinear optics, parametric processes
Record Number:CaltechAUTHORS:20180608-145500419
Persistent URL:
Official Citation:Alireza Marandi, Nick C. Leindecker, Vladimir Pervak, Robert L. Byer, and Konstantin L. Vodopyanov, "Coherence properties of a broadband femtosecond mid-IR optical parametric oscillator operating at degeneracy," Opt. Express 20, 7255-7262 (2012)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86941
Deposited By: George Porter
Deposited On:08 Jun 2018 22:55
Last Modified:15 Nov 2021 20:43

Repository Staff Only: item control page