Search query: SESAM fiber laser

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abstract: We demonstrate an all fiber widely wavelength tunable thulium doped fiber laser (TDFL) mode locked by a semiconductor saturable absorber mirror (SESAM) The tuning range spans 121 nm, from 1862 nm to 1983 nm. The central wavelength is tuned by a grating based tunable filter in the ring laser cavity. To the best of our knowledge, this is so far the most widely wavelength tunable TDFL mode locked by SESAM.
author_names: Zhuo Xu

Zhiyuan Dou

Jing Hou

Xiaojun Xu
title: All fiber wavelength tunable Tm doped fiber laser mode locked by SESAM with 120 nm tuning range.
venue: Applied optics
year: 2017

abstract: We report a semiconductor saturable absorber mirror <inline formula> <tex math notation="LaTeX"$Q$ /tex math>/inline formula> switched holmium (Ho<sup>3+/sup> doped ZrF<sub>4</sub> BaF<sub>2</sub> LaF<sub>3</sub> AlF<sub>3</sub> NaF fiber laser operating at ~1190 nm in a linear cavity. Stable <inline formula> <tex math notation="LaTeX"$Q$ /tex math>/inline formula> switched operation was established at a threshold pump power of 92.8 mW with a repetition rate of 26.1 kHz and a pulsewidth of <inline formula> <tex math notation="LaTeX"$4~\mu \text{s} /tex math>/inline formula> The repetition rate increased and the pulsewidth decreased with an increasing pump power. When the pump power was increased to 830 mW, 800 ns <inline formula> <tex math notation="LaTeX"$Q$ /tex math>/inline formula> switched pulses with a pulse energy of <inline formula> <tex math notation="LaTeX"$0.18~\mu \text{J} /tex math>/inline formula> at a repetition rate of 170 kHz were generated.
author_names: Yuchen Wang

Xiushan Zhu

Chuanxiang Sheng

Lei Li

Qian Chen

Jie Zong

Kort Wiersma

Arturo Chavez-Pirson

Robert A Norwood

Nasser Peyghambarian
title: SESAM $Q$ Switched Ho3+ Doped ZBLAN Fiber Laser at 1190 nm
venue: IEEE Photonics Technology Letters
year: 2017

abstract: We present a stable Yb doped SESAM mode locked fiber laser operating in the similariton regime. 4.8 ps pulses were obtained at the central wavelength of 1030 nm and the de chirped pulse duration was 83 fs.
author_names: Huibo Wang

Hainian Han

Yang Xie

Yang Yu

Hao Teng

Shaobo Fang

Jiangfeng Zhu

Zhiyi Wei
title: Stable SESAM mode locked Yb fiber laser in the similariton regime
year: 2017

abstract: The rising demand in ultrafast radiation sources has boosted the search for high power and high stability mode locked fiber lasers, particularly at telecom wavelengths. In this work, we demonstrate the first ultrafast mode locked fiber laser relying on InN as saturable absorber, centered at 1.5mm. The saturable absorber consists of a 1 mm thick InN grown on a GaN on sapphire template deposited by molecular beam epitaxy [1] with a 250 nm thick top layer of Al deposited by RF sputtering. This material presents a very high nonlinear optical response, with a saturation fluence of Fsat=490 mJ/cm2 and a large change in reflectance, of approximately the 100% [inset Fig. 1(a) It has been proved that the material can withstand extremely high fluences of 9000 mJ/cm2 without suffering optical damage.
author_names: Marco Jimenez-Rodriguez

Francesca Gallazzi

Juan Diego Ania-Castanon

Eva Monroy

Miguel Gonzalez-Herraez

Fernando Bernabe Naranjo
title: Sub 200 fs mode locked fiber laser with InN based SESAM
venue: 2017 Conference on Lasers and Electro Optics Europe European Quantum Electronics Conference (CLEO/Europe EQEC)
year: 2017

abstract: We demonstrate ultrafast harmonically mode locked fiber lasing in up to 6 km long rings at 1.56mm with InN SESAM. Fundamental mode locking with pulse width of 239fs, pulse energy of 155nJ and peak power of 650kW is achieved with a 1 km long cavity.
author_names: Francesca Gallazzi

Marco Jimenez-Rodriguez

Eva Monroy

Pedro Corredera

Miguel Gonzalez-Herraez

Fernando Bernabe Naranjo

Juan Diego Ania-Castanon
title: Sub 250 fs, 650 kW Peak Power Harmonic Mode Locked Fiber Laser with InN based SESAM
venue: 2017 European Conference on Optical Communication (ECOC)
year: 2017

author_names: Luo Jiang Luo Jiang

Yang Song Yang Song

Hao Qiang Hao Qiang

Ceng He Ping Zeng Heping
title: Precise Locking the Repetition Rate of a SESAM Mode Locking All Polarization Maintaining Fiber Laser
year: 2017

abstract: Abstract We present a widely tunable all fiber mode locked laser based on semiconductor saturable absorber mirror (SESAM) with a linear cavity design. An easy to use tunable bandpass filter based on thin film cavity technology is employed to tune the wavelength. By tuning the filter and adjusting the polarization controller, mode locked operation can be achieved over the range of 1023 nm 1060 nm. With the polarization controller settled, mode locked operation can be preserved and the wavelength can be continuously tuned from 1030 nm to 1053 nm. At 1030 nm, the laser delivers 9.6 mw average output power with 15.4 ps 10.96 MHz pulses at fundamental mode locked operation.
author_names: Feng Zou

Zhaokun Wang

Ziwei Wang

Yangbo Bai

Qiurui Li

Jun Zhou
title: Widely tunable all fiber SESAM mode locked Ytterbium laser with a linear cavity
year: 2017

abstract: In this letter, we present a passively mode locked Yb:CALGO oscillator pumped by a 1.2 W single mode fiber coupled laser diode. In semiconductor saturable absorber mirror (SESAM) mode locking regime, maximum output power of 385 mW with a laser slope efficiency of 40% has been achieved. The pulse duration of the mode locked pulse is 630 fs, and the full width at half maximum (FWHM) of the spectrum is measured as only about 2.7?nm. By finely tuning the laser cavity, the laser starts to work in the SESAM combined Kerr lens mode locking regime. Compared with SESAM mode locking only, a maximum reduction factor of 6.33 in pulse duration has been achieved by the combined mode locking mechanism. By optimizing the group delay dispersion (GDD) inside the laser cavity, the shortest pulse duration of 70 fs and FWHM of 19.8?nm at output power of 210 mW has been realized.
author_names: Yan-biao Wang

Sha Wang

Guoying Feng

Shou-huan Zhou
title: SESAM combined Kerr lens mode locked Yb:CALGO laser pumped by a 1.2 W single mode fiber coupled laser diode
year: 2017

abstract: A new design hybrid passive harmonic mode locked fiber laser with integrated Faraday rotator and SESAM in sigma configuration is built. The integrated SESAM Faraday rotator acts as the mode locker. A MZ modulator provides amplitude modulation to stabilize and order optical pulses. Stable evenly spaced femtosecond optical pulses are generated.
author_names: Kevin L F Lui

K S Tsang

Mary Lena Fung

Victor W L Ho

Hideaki Furukawa

Takeshi Makino

Tetsuya Kobayashi

Xiaomin Wang

Naoya Wada

Ray Man
title: Passive hybrid harmonic mode locked fiber sigma laser using integrated faraday rotator and SESAM with amplitude modulation stabilization
venue: 2017 Conference on Lasers and Electro Optics Pacific Rim (CLEO PR)
year: 2017

abstract: A major design goal for femtosecond fiber lasers is to increase the output power but not at the cost of increasing the noise level or narrowing the bandwidth. Here, we perform a computational study to optimize the cavity design of a femtosecond fiber laser that is passively modelocked with a semiconductor saturable absorbing mirror (SESAM) We use dynamical methods that are more than a thousand times faster than standard evolutionary methods. We show that we can obtain higher pulse energies and hence higher output powers by simultaneously increasing the output coupling ratio, the gain, and the anomalous group delay dispersion. We can obtain output pulses that are from 5 to 15 times the energy of the pulse in the current experimental design with no penalty in the noise level or bandwidth.
author_names: Shaokang Wang

Chaoran Tu

Seyed Ehsan Jamali Mahabadi

Stefan Droste

Laura C Sinclair

Ian Coddington

Nathan R Newbury

Thomas F Carruthers

Curtis R Menyuk
title: Obtaining more energetic modelocked pulses from a SESAM based fiber laser.
venue: Optics express
year: 2020