Title:
【発明の名称】共振周波数と光共振器のQ値のモードホップなし同調を行う方法及びこの方法を実施するための装置
Document Type and Number:
Japanese Patent JPH05502137
Kind Code:
A
Abstract:
PCT No. PCT/SE90/00573 Sec. 371 Date Apr. 21, 1992 Sec. 102(e) Date Apr. 21, 1992 PCT Filed Sep. 7, 1990 PCT Pub. No. WO91/03848 PCT Pub. Date Mar. 21, 1991.Method and apparatus to ensure tuning without mode hopping of the resonator frequency and tuning of the Q-value of an optical resonator of the type comprising a partially reflecting resonator mirror (2) and a movable reflecting optical grating, with grooves (GR) parallel to the resonator mirror, intended to function as a wavelength selective reflector and which may comprise optical elements between the mirror and the grating, said optical elements being intended for collimation, amplification (4) and filtering of the radiation in the resonator, so that when changing the resonance wavelength ( lambda ) of the resonator or its Q-value, the grating is moved in such a way that a line (C) on the grating which is defined at a tuned initial position of the resonator by the intersection of the plane of grating grooves (M) and the virtual mirror plane (5) of the resonator mirror, remains at a distance less than lambda /4 from the virtual mirror plane, which as a result of chromatic dispersion in the resonator media slides in distance to the fixed mirror with said resonator wavelength during the movement.
Inventors:
Nilsson, Ole, Bjorn
Weil Helmson, Kennett, Jan-Ake
Weil Helmson, Kennett, Jan-Ake
Application Number:
JP51267490A
Publication Date:
April 15, 1993
Filing Date:
September 07, 1990
Export Citation:
Assignee:
Radiance Inn Nova Actibolag
International Classes:
H01S3/00; H01S3/08; H01S3/1055; G02F1/21; H01S3/081; H01S5/14; (IPC1-7): G02F1/21; H01S3/00; H01S3/08; H01S3/1055
Attorney, Agent or Firm:
Shigeru Yagita (2 outside)