Time-domain polarisation scrambler on one bulk LiNbO{sub 3} crystal with quadrupole electrodes

Journal Article · Sun Feb 28 00:00:00 EST 2010 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2010V040N02ABEH014127· OSTI ID:21471063

Davydov, B L; Mironov, V Yu ^[1]

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1. V.A.Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Fryazino, Moscow Region (Russian Federation)

As distinct from the classic Billings depolariser, a simple time-domain polarisation scrambler can be made on one crystal possessing a threefold axis among its symmetry elements and displaying a linear electro-optical effect (Pockels effect). We demonstrate a polarisation scrambler on a LiNbO{sub 3} uniaxial crystal with two pairs of electrodes to which two harmonic voltages identical in amplitude and differing in phase by 90{sup 0} are applied. The residual degree of polarisation of the depolarised light, quantified by the polarisation extinction ratio, is less than 0.1 dB. Tolerances on the crystal orientation and the phase difference between the control voltages are estimated. The quality of the crystal is shown to be critical to the performance of the scrambler. (laser applications and other topics in quantum electronics)

• OSTI ID: 21471063
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 40, Issue 2; Other Information: DOI: 10.1070/QE2010v040n02ABEH014127; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CRYSTAL STRUCTURE
CRYSTALS
DEPOLARIZATION
ELECTRIC POTENTIAL
ELECTRODES
ELECTRO-OPTICAL EFFECTS
LITHIUM COMPOUNDS
NIOBATES
POLARIZATION
SYMMETRY
VISIBLE RADIATION
ALKALI METAL COMPOUNDS
ELECTROMAGNETIC RADIATION
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
RADIATIONS
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS