FIELD: physics.
SUBSTANCE: method of moving exit neck while keeping its size constant involves using a two-component laser optical system. The laser optical system has a first movable component at a distance d1 from the entrance neck, a second movable component at a distance d2 from the first component and the exit neck. The exit neck lies at a distance d3 from the second component. Parametres of the laser optical system are linked by the relationships: magnification of the first component defocusing of components
focal distance of the second component
. Longitudinal distances d1, d2 and d3 are varied according to the following laws:
;
Movement of the exit neck with change in the length of the laser optical system is realised according to the following law:
where: α is longitudinal magnification of the laser optical system;
is focal distance of the first component; Zk is a confocal parametre, Zp is the distance from the focus of the first component to the entrance neck; P0=P(zpt,Δt)=const is the full, characteristic relationship between longitudinal magnification and the current structural parametres.
EFFECT: possibility of moving a constant-size neck in a wide range with small displacement of components of the laser optical system.
2 cl, 2 dwg
Title | Year | Author | Number |
---|---|---|---|
MATCHING LASER OPTICAL SYSTEM FOR ENSURING OUTPUT WAIST SIZE AND POSITION CONSTANCY | 2008 |
|
RU2435182C2 |
METHOD FOR LONGITUDINAL DISPLACEMENT OF A WAIST OF A GAUSSIAN BEAM OF CONSTANT DIAMETER WITHOUT MOVEMENT OF COMPONENTS OF THE OPTICAL SYSTEM (VERSIONS) | 2019 |
|
RU2708549C1 |
METHOD OF VARYING NECK DIAMETER OF OUTPUT LASER BEAM AT FIXED DISTANCE FROM LASER | 2012 |
|
RU2488861C1 |
METHOD FOR CHANGING THE FOCUSING LENGTH OF A 0-ORDER BESSEL BEAM | 2019 |
|
RU2721085C1 |
METHOD OF FORMING TUBULAR CHANNEL WAVEGUIDE AND APPARATUS FOR ITS IMPLEMENTATION | 2019 |
|
RU2711001C1 |
DEVICE FOR TAKING MEASUREMENTS OF LIGHT SCATTERING CHARACTERISTICS OF OPTOELECTRONIC INSTRUMENTS | 2007 |
|
RU2329475C1 |
SURGICAL LASER APPARATUS | 1993 |
|
RU2090157C1 |
TWO-PHOTON SCANNING MICROSCOPE WITH AUTOMATIC PRECISION IMAGE FOCUSING AND METHOD FOR AUTOMATIC PRECISION IMAGE FOCUSING | 2012 |
|
RU2515341C2 |
OPTICAL SYSTEM FOR CORRECTION OF SHAPE OF RECTANGULAR LASER BEAM | 1998 |
|
RU2149435C1 |
OPTICAL INTERFACE FOR ION QUANTUM REGISTER | 2022 |
|
RU2807585C1 |
Authors
Dates
2011-02-10—Published
2008-11-18—Filed