Phase-locked integrated arrays of injection lasers

Goldobin, I S; Evtikhiev, Nikolay N.; Plyavenek, Andrei G; Yakubovich, S D

doi:10.1070/qe1989v019n10abeh009137

Cited by 23 publications

(5 citation statements)

References 140 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[1] and will not be repeated here, although they broadly fall under two categories: passive and active phase-compensation techniques. Specific implementations include evanescent-wave coupling [6][7][8][9][10][11][12][13][14][15][16], common-cavity coupling , compensation of phase errors using phase-conjugate elements [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54], and phase detection with active compensation techniques [55][56][57][58][59][60][61][62][63][64][65][66][67], These demonstrations range from subwatt levels [9,17,56,60,62], to 10 W levels [10,20,55,…”

Section: Coherent Beam Combining Of Ytterbium Fiber Amplifiersmentioning

confidence: 99%

See 1 more Smart Citation

Beam combining of ytterbium fiber amplifiers (Invited)

et al. 2007

View full text Add to dashboard Cite

Fiber lasers are well suited to scaling to high average power using beam-combining techniques. For coherent combining, optical phase-noise characterization of a ytterbium fiber amplifier is required to perform a critical evaluation of various approaches to coherent combining. For wavelength beam combining, we demonstrate good beam quality from the combination of three fiber amplifiers, and we discuss system scaling and design trades between laser linewidth, beam width, grating dispersion, and beam quality.

show abstract

Section: Coherent Beam Combining Of Ytterbium Fiber Amplifiersmentioning

confidence: 99%

“…We will now discuss coherent beam combining and WBC in more detail. Rather than providing an exhaustive review of the field [1][2][3][4][5][6][7][8], we will be focusing on recent experimental work of implementations using ytterbium (Yb) fiber amplifiers and some practical design considerations for building such systems.…”

Section: Introductionmentioning

confidence: 99%

Beam combining of ytterbium fiber amplifiers (Invited)

et al. 2007

View full text Add to dashboard Cite

show abstract

“…Для когерентного сложения мощностей отдельных каналов необходима разработка методов синхронизации. Среди известных методов можно выделить использование внешних резонаторов [8], взаимную синхронизацию каналов за счет эффекта Тальбота [9], а также различные способы попарной связи каналов [10]. В настоящей работе применительно к инжекционным лазерам предлагается альтернативный вариант синхронизации лазерных каналов на основе двумерных брэгговских зеркал.…”

Section: модель многоканального лазера с двумерными брэгговскими зеркunclassified

Использование Двухзеркальных Двумерных Брэгговских Резонаторов В Полупроводниковых Гетеролазерах

Барышев¹,

Гинзбург²,

Заславский³

et al. 2019

Физика И Техника Полупроводников

View full text Add to dashboard Cite

A double-mirror two-dimensional Bragg resonator design based on structures of planar geometry, which is typical of both band-to-band and quantum-cascade heterolasers, is suggested. The distinguishing feature of this design is the coupling between longitudinal and transverse energy flows in two-dimensional Bragg mirrors. The eigenmode spectrum of the structure is described. It is shown that the proposed design can be used for synchronizing radiation emitted in lasers and laser arrays.

show abstract

“…The resultant dependence is periodic, with a period 2it, and the Q factors of the even and odd collective modes reproduce one another after a shift of it. 6 includes (dashed curve) analytic dependence of lyl on 4) for two collective modes, derived using Eq. However, there is a considerable difference: the Q factors of the even and odd modes differ for ijc = ir/2.…”

Section: Collective Modes Ofcoupied Unstable Resonatorsmentioning

confidence: 99%

“…Strong scattering by the thermal grating was observed after 2-3 ms from the beginning of lasing and the scattering coefficient averaged over one pulse (and representing the energy injected from one laser into the other) amounted to (3)(4)%. The resonator lengths had to be matched to within l0 cm in order to ensure stable locking of the fields.…”

Section: 8 Nonlinear Optical Coupling Of Two Lasersmentioning

confidence: 99%

<title>Radiation emitted by optically coupled lasers</title>

Likhanskiǐ

Napartovich

1993

SPIE Proceedings

View full text Add to dashboard Cite

Optically coupled lasers are a strildng example of a class of self-organized nonlinear dynamic systems which are currently attracting much interest. From a practical standpoint, the coupling of lasers makes it possible to increase relatively simply both the output power and brightness of a light source. The present review gives an account of the current status of the theory and experimental results obtained for two or more optically coupled lasers. The stress is on the structure of collective modes and their stability. Frequency and phase locking of laser arrays is considered. Optical coupling systems tested experimentally are discussed and the agreement between the experiment and theory is considered. A description is given of the operation of systems in which lasers are detuned by an amount exceeding the width of a locking band. Methods for increasing the brightness of the output radiation of systems with a synthesized aperture are also discussed.include, for example, chains of coupled nonlinear oscillators, spin and atomic chains, coupled Josephson junctions, etc. Optically coupled lasers belong to the same class of systems and they are now being investigated in many laser laboratories. The principle of modular construction of laser systems is of practical importance because it provides opportunities for generating high-power highquality radiation. In particular, the development of a chemical laser for optical data processing systems has followed this approach.3 The modular structure of a laser system makes it possible to increase the output power quite simply while retaining the high quality of radiation typical of a single module.The configuration of a system of modules and the number of modules N are usually determined by the type of laser and the technology used in their manufacture. The following examples can be quoted: linear and two-dimensional arrays of semiconductor lasers (N 10) ', arrays of tubular or waveguide CO2 lasers (N 5Ø),56 arrays of fiber-optic Nd3 lasers (N = 1300), arrays of Nd3 lasers (N = 7),8 and an array of CO2 lasers with unstable resonators (N = 6).When laser modules generate noncoherent (not phase-locked) radiation, the maximum density of the power which can be delivered to a target is N times greater than the power density obtainable from a single module. If it is compared with the power density obtainable from a single laser with an aperture N112 times greater, it is found that the module array provides a higher brightness if the divergence of the radiation from a single laser exceeds N112 °diffr' where °diffr is the diffraction limit of the divergence angle (for an aperture of N112 d size).When the radiation emitted by all the modules in an array is coherent, the maximum power density which can be delivered to a target is N2 times higher than for a single module. Therefore, a module array is superior to a single laser with a divergence exceeding qdjffr if the radiation from all the O-8194-1425-5/93/$6.00 SPIE Vol. 2109 /291 Downloaded From: http://proceedings.spiedigitallibrary....

show abstract

Phase-locked integrated arrays of injection lasers

Cited by 23 publications

References 140 publications

Beam combining of ytterbium fiber amplifiers (Invited)

Beam combining of ytterbium fiber amplifiers (Invited)

Использование Двухзеркальных Двумерных Брэгговских Резонаторов В Полупроводниковых Гетеролазерах

<title>Radiation emitted by optically coupled lasers</title>

Contact Info

Product

Resources

About