WO2013100812A2 - Module d'absorbeur à saturation sur la base d'un composé polymère avec des nanotubes monofeuillet - Google Patents

Module d'absorbeur à saturation sur la base d'un composé polymère avec des nanotubes monofeuillet Download PDF

Info

Publication number
WO2013100812A2
WO2013100812A2 PCT/RU2012/001069 RU2012001069W WO2013100812A2 WO 2013100812 A2 WO2013100812 A2 WO 2013100812A2 RU 2012001069 W RU2012001069 W RU 2012001069W WO 2013100812 A2 WO2013100812 A2 WO 2013100812A2
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
film
polymer composite
radiation
carbon nanotubes
Prior art date
Application number
PCT/RU2012/001069
Other languages
English (en)
Russian (ru)
Other versions
WO2013100812A3 (fr
Inventor
Сергей Каренович ВАРТАПЕТОВ
Дмитрий Владимирович КУДЯКОВ
Андрей Александрович БОРОДКИН
Original Assignee
Общество С Ограниченной Ответственностью "Оптосистемы"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Общество С Ограниченной Ответственностью "Оптосистемы" filed Critical Общество С Ограниченной Ответственностью "Оптосистемы"
Priority to DE212012000233.2U priority Critical patent/DE212012000233U1/de
Publication of WO2013100812A2 publication Critical patent/WO2013100812A2/fr
Publication of WO2013100812A3 publication Critical patent/WO2013100812A3/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2726—Optical coupling means with polarisation selective and adjusting means in or on light guides, e.g. polarisation means assembled in a light guide
    • G02B6/2733—Light guides evanescently coupled to polarisation sensitive elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08054—Passive cavity elements acting on the polarization, e.g. a polarizer for branching or walk-off compensation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/113—Q-switching using intracavity saturable absorbers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06791—Fibre ring lasers

Definitions

  • the proposed solution relates to optical elements for fiber lasers, in particular, to saturable absorbers.
  • a saturable absorber is used in pulsed fiber and distributed lasers as a device for providing a self-starting mode and mode synchronization.
  • SESAM Saturated semiconductor mirrors
  • WO2011125358 A1
  • SESAM Saturated semiconductor mirrors
  • WO2011125358 A1
  • SESAM is a mirror
  • fiber circulators in the fiber circuit or a linear resonator circuit with SESAM-a end-face arrangement, sometimes with additional focusing and radiation output into space.
  • production of the SESAM-s * requires expensive equipment and, as has been observed in the operation of such mirrors to observe the dynamics of degradation saturates the absorption properties.
  • saturable absorber application US .4220110280263, made on a refined fiber.
  • the saturable absorber is made on the basis of a polymer composite with single-walled carbon nanotubes in the region of narrowing of the fiber.
  • the design of a laser with such an absorber allows one to obtain pulses with high energy, however, at the output of a saturable absorber we have a random polarization of radiation, which limits its further application.
  • Module contains fiber with a core and a sheath, the sheath of the fiber is sharpened along one plane, a layer of a composite with single-walled carbon nanotubes is deposited on the surface of the sheath of the fiber.
  • This design allows one to obtain polarized pulsed radiation at the output, however, for such a saturable absorber to work, it is necessary that the radiation propagating in the optical fiber be polarized parallel to the surface of the absorber film.
  • the objective of the invention is to provide an effective module of a saturable fiber absorber based on a polymer composite with single-walled carbon nanotubes for generating pulsed polarized radiation in a fiber laser.
  • a saturable absorber is intended primarily for use in a fiber laser with a ring resonator, in which the radiation has a propagation direction to obtain stable radiation.
  • An additionally installed polarizer made on a single-mode fiber section polished along the same plane as the single-mode fiber section fibers with a film of a composite with single-walled carbon nanotubes (OUN), located higher in the direction of radiation propagation, will establish the necessary polarization of radiation in the fiber and thereby increase the efficiency of the saturable absorber.
  • the radiation in the fiber initially hits the portion of the polarizer, which absorbs radiation with the P component of polarization due to the excitation of surface plasmons in the aluminum film and transmits radiation with the S component of polarization.
  • the radiation enters the region of a saturable film absorber, which mainly interacts with radiation having an S component of polarization.
  • An additional polarizer mounted on the fiber improves the efficiency of the saturable absorber.
  • the direction of the polarization vector of the saturable absorber film must be parallel to the plane of the absorber film or deviate from this direction by no more than 5 degrees. Otherwise, the performance of the device will be low.
  • an additional polarizer installed at a certain distance will significantly increase the efficiency of the saturable absorber.
  • a polymer composite with single-walled carbon nanotubes is deposited on a portion of a polished fiber sheath from 1 to 10 millimeters in length, the residual thickness of the fiber sheath is from 1 to 3 ⁇ m, the film thickness of a composite with single-walled carbon nanotubes is not more than 10 ⁇ m, the polished surface of the polarizer portion is coated with an aluminum film with a thickness of not more than 100 nm, the residual thickness of the fiber sheath is not more than 3 ⁇ m, and the length of the area covered by the aluminum film is from 1 to 10 millimeters.
  • the thickness of the residual fiber sheath is greater than 3 ⁇ m, the interaction efficiency of the radiation propagating in the fiber with the composite film becomes low, and the saturable absorber will not function effectively. If the thickness of the residual shell is less than 1 ⁇ m, there is a danger of radiation exit from the core. With a film thickness of a composite with an SWN di no more than 10 ⁇ m, the preferred direction of the nanotubes is parallel to the plane of the composite film. When installing such a film on a polished surface fiber saturable absorber becomes a polarization-sensitive element and mainly absorbs radiation with polarization directed parallel to the plane of the film or the plane of the polished shell of the optical fiber (S-component of polarization).
  • the length of the film of the composite with OUN along the fiber is from 1 to 10 millimeters. If the film length of a composite with an OUN is less than a millimeter, the modulation depth will be insufficient for self-triggering mode synchronization. When the length of the plot is more than a centimeter, the loss of radiation from the fiber becomes significant.
  • Such a saturable absorber made on a fiber surface polished along one plane from a composite with single-walled carbon nanotubes is capable of operating at relatively high pulse energies, since the composite film is located outside the direct radiation passage zone.
  • the incident peak intensity is controlled by the choice of the thickness of the residual shell, it is possible to choose the thickness of the residual shell such that when passing a pulse with a high energy, the peak intensity incident on the absorber film will be lower than the value of its destruction, which makes the saturable absorber reliable and with a long service life.
  • the residual thickness of the sheath of the fiber of the polarizer is not more than 3 microns. For large values of the residual shell thickness, the interaction efficiency of the radiation propagating through the core with the film becomes low.
  • the length of the aluminum-coated area is 1 to 10 mm. This length is optimal for creating polarized radiation.
  • the thickness of the aluminum film is not more than 100 nm, since at large thicknesses the excitation efficiency of surface plasmons decreases.
  • the section between the polarizer and the absorber is made of optical fiber with polarization support.
  • One embodiment is the connection of a polarizer and a saturable absorber with a fiber with polarization support. This gives great freedom to developers to implement the proposed technical solution. You can set the direction of polarization of the radiation along the fast or slow axis of the fiber with support for polarization.
  • the technical result of the proposed technical solution is to create an effective saturable fiber absorber module based on a polymer composite with single-walled carbon nanotubes for generation pulsed polarized radiation in a fiber laser, suitable for continuous operation in high pulse energy mode.
  • An embodiment of the invention is a saturable absorber module based on a polymer composite with single-walled carbon nanotubes, made on a single-mode optical fiber, including a core and a shell with a certain thickness, the fiber is capable of transmitting radiation with a certain wavelength, the polymer composite contains a polymer mixed with single-walled carbon nanotubes, selected to absorb radiation with a specified wavelength, a polymer composite film with single-walled carbon nanotubes is located on the surface of the fiber sheath polished along one plane, the residual fiber sheath is 1 to 3 ⁇ m thick, the film thickness of the polymer composite is not more than 1 ⁇ m, the film of the polymer composite is coated with an aluminum film with a thickness of not more than 100 nm, the length of such a two-layer film is from 1 to 10 millimeters.
  • the residual thickness of the fiber sheath is from 1 to 3 ⁇ m, since with a thickness of less than 1 ⁇ m there is a danger of radiation coming out of the fiber core, with a thickness of more than 3 ⁇ m, the radiation propagating in the fiber does not effectively interact with the film from the polymer composite with OUN.
  • the film thickness of the polymer composite with OUN is not more than 1 ⁇ m, the film of the polymer composite is coated with a film of aluminum with a thickness of 20-100 nanometers, the length of such a two-layer film L (polished fiber section) is 1-10 mm.
  • Such a device works as a saturable absorber and polarizer at the same time.
  • the film thickness of the polymer composite is more than 1 ⁇ m, the radiation propagating through the fiber core interacts very weakly with the aluminum film and is not polarized. This, in turn, lowers the efficiency of the saturable absorber.
  • the thickness of the aluminum film should not be more than 100 nanometers.
  • the technical result of the proposed technical solution is to create a fiber module of a saturable absorber based on a composite with single-walled carbon nanotubes to generate pulsed polarized radiation in a fiber laser.
  • the proposed scheme provides high optical stability, which is a prerequisite for the generation of ultrashort pulses with high energy.
  • a saturable absorber is shown in the form of a composite film with single-walled carbon nanotubes on the surface of a polished fiber.
  • FIG. 2. shows a saturable absorber module with a polarizer.
  • Fig. 3. shows a saturable absorber module containing a film with single-walled carbon nanotubes coated with a film of aluminum.
  • Fig.l. depicts a saturable absorber in an optical fiber section with a shell 1, a core 2.
  • a portion of the fiber sheath is polished along a plane to obtain a flat surface 3, on which a composite film 4 with single-walled carbon nanotubes is deposited.
  • the residual thickness of the fiber sheath 1 - d the film thickness - dl.
  • the length of the film along the fiber is L. Since the predominant direction of the axes of nanotubes with a film thickness of less than 10 ⁇ m lies in the plane of the composite film, when radiation passes through the core of fiber 2, radiation is mainly absorbed with polarization directed parallel to the plane of the film or the plane of the polished shell of the optical fiber (S polarization component). For efficient operation of such a saturable absorber, it is necessary that the radiation propagating in the optical fiber be polarized parallel to the surface of the absorber film.
  • FIG. 2. shows a saturable absorber module with a polarizer.
  • a single-mode optical fiber contains a core 1 and a sheath 2. The fiber is designed to transmit radiation in one direction (the direction of radiation propagation is shown by arrows).
  • the sheath of fiber 1 is polished along one plane in two sections. To the first section along the way of radiation propagation, an aluminum film of thickness d2 and length L is deposited, a film of a composite with single-walled carbon nanotubes of thickness dl and length L is deposited on the second section.
  • the radiation When radiation passes through the fiber, the radiation first becomes linearly polarized in the first section along the radiation propagation with the film from aluminum, and then falls into the second section with a polished fiber sheath coated with a composite with OUN, where the radiation interacts with a saturable absorber.
  • the distance between the first and second sections is such that the radiation polarization does not deviate, or deviates by no more than 5 degrees. This allows the saturable absorber to work efficiently. Thus made module saturable absorber allows you to get a linearly polarized pulsed radiation with short pulse durations.
  • FIG. 3. depicts a saturable absorber module containing a film and single-walled carbon nanotubes with an aluminum film.
  • a single-mode optical fiber contains a sheath 1 and a core 2. The fiber sheath is polished along plane 3 to a residual thickness d, a film of composite 4 with single-walled carbon nanotubes with a thickness dl of no more than 1 ⁇ m is deposited on the polished surface of the fiber. On a film with an OUN, an aluminum film of thickness d2 is applied. The length of the area L with the deposited films is from 1 to 10 mm.
  • the radiation propagates through the core of fiber 2, the radiation incident on the portion of the fiber with deposited films 4, 5 is polarized and becomes pulsed.
  • Such a saturable absorber module works regardless of the direction of radiation along the fiber. Such a module makes it possible to efficiently obtain pulsed polarized radiation and is capable of operating for a long time in the mode of relatively high pulse energies.
  • the present invention a saturable absorber module, can be used in the design of fiber lasers.
  • Fiber lasers are used in various technological processes.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Lasers (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

La solution technique proposée concerne des éléments optiques destinés aux lasers à fibre. Le module d'absorbeur à saturation est réalisé sur la base d'une fibre à mode unique, comprend un film de composé polymère avec des nanotubes monofeuillet, ledit film étant appliqué à une surface polie le long du plan de la surface de l'enveloppe de la fibre, ainsi qu'un polariseur. Elle permet de générer efficacement un rayonnement polarisé à impulsions et assure une résistance optique élevée.
PCT/RU2012/001069 2011-12-29 2012-12-14 Module d'absorbeur à saturation sur la base d'un composé polymère avec des nanotubes monofeuillet WO2013100812A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212012000233.2U DE212012000233U1 (de) 2011-12-29 2012-12-14 Modul eines Sättigungsabsorbers auf Polymer-Verbundstoff-Basis mit einwändigen Kohlenstoff-Nanoröhrchen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2011153903 2011-12-29
RU2011153903/28A RU2485562C1 (ru) 2011-12-29 2011-12-29 Модуль насыщающегося поглотителя на основе полимерного композита с одностенными углеродными нанотрубками (варианты)

Publications (2)

Publication Number Publication Date
WO2013100812A2 true WO2013100812A2 (fr) 2013-07-04
WO2013100812A3 WO2013100812A3 (fr) 2013-09-19

Family

ID=48698762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2012/001069 WO2013100812A2 (fr) 2011-12-29 2012-12-14 Module d'absorbeur à saturation sur la base d'un composé polymère avec des nanotubes monofeuillet

Country Status (3)

Country Link
DE (1) DE212012000233U1 (fr)
RU (1) RU2485562C1 (fr)
WO (1) WO2013100812A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11406318B2 (en) * 2017-03-23 2022-08-09 The General Hospital Corporation Apparatus, methods and computer-accessible media for in situ three-dimensional reconstruction of luminal structures
RU2708902C1 (ru) * 2018-06-14 2019-12-12 Автономная некоммерческая образовательная организация высшего образования Сколковский институт науки и технологий Устройство для переключения режимов работы оптоволоконного лазера и способ его изготовления
DE102022109148A1 (de) 2022-04-13 2023-10-19 Rittal Gmbh & Co. Kg Kühlkörper für eine elektronische Komponente und eine entsprechende Kühlanordnung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100098113A1 (en) * 2006-10-27 2010-04-22 Jeffrey Nicholson Selective deposition of carbon nanotubes on optical fibers
WO2010120246A1 (fr) * 2009-04-13 2010-10-21 National University Of Singapore Dispositifs absorbeurs saturables à base de graphène et procédés apparentés
US20110280263A1 (en) * 2008-06-26 2011-11-17 Khanh Kieu Saturable absorber using a fiber taper embedded in a nanostructure/polymer composite and lasers using the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3328881B2 (ja) * 1999-05-26 2002-09-30 独立行政法人産業技術総合研究所 半導体光パルス圧縮導波路素子及び半導体光パルス発生レーザ
DE602004007388T2 (de) * 2003-07-04 2008-04-10 Koninklijke Philips Electronics N.V. Optisches beugungselement
JP5368360B2 (ja) 2010-04-09 2013-12-18 浜松ホトニクス株式会社 パルスファイバレーザ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100098113A1 (en) * 2006-10-27 2010-04-22 Jeffrey Nicholson Selective deposition of carbon nanotubes on optical fibers
US20110280263A1 (en) * 2008-06-26 2011-11-17 Khanh Kieu Saturable absorber using a fiber taper embedded in a nanostructure/polymer composite and lasers using the same
WO2010120246A1 (fr) * 2009-04-13 2010-10-21 National University Of Singapore Dispositifs absorbeurs saturables à base de graphène et procédés apparentés

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YONG-WON SONG ET AL.: 'All-fiber pulsed lasers passively mode locked by transferable vertically aligned carbon nanotube film' OPTICS LETTERS vol. 32, no. 11, 01 June 2007, pages 1399 - 1401 *

Also Published As

Publication number Publication date
DE212012000233U1 (de) 2014-08-18
WO2013100812A3 (fr) 2013-09-19
RU2485562C1 (ru) 2013-06-20

Similar Documents

Publication Publication Date Title
TWI430527B (zh) Ｑ－切換引發之增益切換鉺脈衝雷射系統
CN109792129B (zh) 单片可见光波长光纤激光器
US7409122B2 (en) End face structure of optical fiber, optical fiber laser, and laser processing apparatus
CN203014153U (zh) 一种双向输出1319nm波长光纤激光器
WO2011118293A1 (fr) Elément optique du type fibre optique, module à diode laser, et laser à fibre
CN103944048A (zh) 一种基于单包层钕光纤及环形腔的飞秒激光器及制作方法
US20070189339A1 (en) Fiber laser beam processing apparatus
Bae et al. Controllable Dynamic Single‐and Dual‐Channel Graphene Q‐Switching in a Beam‐Splitter‐Type Channel Waveguide Laser
WO2013100812A2 (fr) Module d'absorbeur à saturation sur la base d'un composé polymère avec des nanotubes monofeuillet
CN103222133A (zh) 激光光源、激光加工装置及半导体的加工方法
Jeong et al. Ultrafast mode-locked fiber laser using a waveguide-type saturable absorber based on single-walled carbon nanotubes
CN114421271A (zh) 全光纤式掺钕光纤激光器
WO2016031458A1 (fr) Dispositif à fibre optique
CN103050870A (zh) 可光纤输出的新型微片激光器
CN111684347A (zh) 光波长转换器及光波长转换器的制造方法
CN116316030B (zh) 一种提高输出功率的自锁模激光器
TWI448024B (zh) 環形迴路光學系統及全光纖式ｑ－開關雷射
US20050036531A1 (en) Laser device
CN111585159A (zh) 一种用于保障微片激光器频率稳定性的装置及方法
EP2939315A2 (fr) Système de génération de supercontinuum à base de diamant
Kashiwagi et al. Novel cost effective carbon nanotubes deposition technique using optical tweezer effect
KR101550048B1 (ko) 탄소나노튜브와의 소멸장 상호작용으로 Ｑ-스위칭된 Ｙｂ:ＫＹＷ 평면 도파로 레이저 장치 및 그 제조 방법
Ramsay et al. Laser action from an ultrafast laser inscribed Nd-doped silicate glass waveguide
Cui et al. Linear-cavity cylindrical vector lasers based on all-fiber mode converters
Ma et al. Passively Q-switched GdVO 4/Nd: GdVO 4 laser with Cr 4+: YAG saturable absorber under direct 879 nm diode pumping to the emitting level

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 212012000233

Country of ref document: DE

Ref document number: 2120120002332

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12861538

Country of ref document: EP

Kind code of ref document: A2